Page Professionnelle de Allel HADJ ALI

Allel HADJALI

Professeur des Universités

email : allel.hadjali@ensma.fr
tél : 0549498060
tutelle: ISAE - ENSMA
adresse : ISAE-ENSMA, 1 avenue Clément Ader BP 40109, 86961 Chasseneuil - France
équipe : Ingénierie des Données et des Modèles

Enseignement

I am Professor in Computer Science at Engineer School ENSMA (https://www.ensma.fr/), Poitiers.

I am responsible and I teach the following courses:

Formal aspects of software engineering (Master 2 course)
Language interpretations and compilation
Programming languages
Data management and exploitation

In the past, as Associate Professor, I have taught the following courses:

Object modeling and programming
Distributed algorithms and systems
Foundations of operating systems
Advanced databases: Preferences and uncertainty (Master 2 course)
Language theory and compilation
Data structures, algorithmic and programming languages
Dynamic/Linear/Non-Linear programming
Operation research
Intelligent systems and soft computing (Master 2 course)

Recherche

My scientific research falls with the data science domain, more particularly; my topics of interest are related to the Exploitation, Extraction and Recommendation (E2R). Data of interest include semantic data, engineering/scientific data, multisensor data, etc.

My current research interests are focusing on applying Soft Computing and Computational Intelligence in:

Massive Data Exploitation and Analysis:
- Querying data in a flexible way (Skyline queries, Gradual queries, Bipolar queries, etc.)
- Modeling and querying uncertain/incomplete data
- Cooperative answering (Query relaxation, Providing Enriched answers, Why-not questions, etc.)
- Data reduction (Linguistic Summaries)
Extraction:
- Mining gradual patterns
Recommendation:
- Preference relations, aggregation
- Group recommendation

Others research topics of interests are:

Data quality (Quality indicators, Data repairing)
Intelligent systems (Computational intelligence techniques in decision making)
Crowdsourced data managment (Quality control, answer aggregation)

Current Projects

Project CNRS Mastodons 2016 - 2018: QDoSSI (Data Quality)

New Events

International Journal of Approximate Reasoning: Special Issue on Managing Uncertainty in Cloud Computing
Research Action in GDR MADICS 2018 : ARQUADS (Action de Recherche sur la QUalité des Données Scientifiques)
Workshop on Uncertainty in Cloud Computing (in conjunction with IEEE CloudCom 2018 Conference): UCC-2018

Curriculum Vitae

See my curriculum Vitae: MyCV

Publications

(140)

par type

par année

Ouvrages individuels ou collectifs

(8)

AMNA ABIDI, Mohamed Anis Bach Tobji, Allel HADJALI, Boutheina Ben Yaghlane, Statistical Methods for Use in Analysis of Trust-Skyline Sets, Enterprise Information Systems (EIS2018), 321, LNBIP, edited by Springer, 2018, pp. 1-15

@INBOOK{29473,
 author="Abidi AMNA and Bach Tobji Mohamed Anis and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Statistical Methods for Use in Analysis of Trust-Skyline Sets",
 year="2018",
 volume="321",
 series="LNBIP",
 edition="Springer",
 pages="1-15",
}

AMNA ABIDI, Mohamed Anis BACH TOBJI, Allel HADJALI, Boutheina Ben Yaghlane, Statistical Methods for Use in Analysis of Trust-Skyline Sets, Enterprise Information System (EIS2018), 321, LNBIP, edited by Springer, 2018, pp. 1-15

@INBOOK{29598,
 author="Abidi AMNA and Bach Tobji Mohamed Anis and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Statistical Methods for Use in Analysis of Trust-Skyline Sets",
 year="2018",
 volume="321",
 series="LNBIP",
 edition="Springer",
 pages="1-15",
}

Grégory Smits, Olivier PIVERT, Allel HADJALI, Fuzzy Cardinalities as a Basis to Cooperative Answering, Flexible Approaches in Data, Information and Knowledge Management (SCI), 497, Studies in Computational Intelligence, edited by Springer, 2013, pp. 261-289

@INBOOK{13053,
 author="Smits Grégory and Pivert Olivier and Hadjali Allel",
 title="Fuzzy Cardinalities as a Basis to Cooperative Answering",
 year="2013",
 volume="497",
 series="Studies in Computational Intelligence",
 edition="Springer",
 pages="261-289",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, An approach based on predicate correlation to the reduction of plethoric answers sets, Advances in Knowledge Discovery and Management (AKDM10), Studies in Computational Intelligence, edited by Springer, 2010, pp. 215-236

@INBOOK{13713,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="An approach based on predicate correlation to the reduction of plethoric answers sets",
 year="2010",
 series="Studies in Computational Intelligence",
 edition="Springer",
 pages="215-236",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, Overabundant answers to flexible queries – A proximity-based intensification approach, Uncertainty and Intelligent Information Systems (UIIS08), edited by World Scientific Publishing, 2008, pp. 273-287

@INBOOK{13704,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="Overabundant answers to flexible queries – A proximity-based intensification approach",
 year="2008",
 edition="World Scientific Publishing",
 pages="273-287",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, On the versatility of fuzzy sets for modelling flexible queries, Handbook of Research on Fuzzy Information Processing in Databases (FIP08), edited by Idea Group Inc, 2008, pp. 143-164

@INBOOK{13696,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="On the versatility of fuzzy sets for modelling flexible queries",
 year="2008",
 edition="Idea Group Inc",
 pages="143-164",
}

Didier DUBOIS, Allel HADJALI, Henri PRADE, Granular computing with fuzzy closeness and negligibility relations, Data Mining, Rough Sets and Granular Computing (LY. Lin, Y. Lao, L.A. Zadeh, Edts.) (DMRS02), Studies in Fuzziness and soft Computing, edited by Springer-Verlag Group, 2002, pp. 290-307

@INBOOK{13688,
 author="Dubois Didier and Hadjali Allel and Prade Henri",
 title="Granular computing with fuzzy closeness and negligibility relations",
 year="2002",
 series="Studies in Fuzziness and soft Computing",
 edition="Springer-Verlag Group",
 pages="290-307",
}

Didier DUBOIS, Allel HADJALI, Henri PRADE, Fuzzy qualitative reasoning with words, Computing with Words (P.P. Wang, Edt.) (CW01), Volume III in a Series of books on Intelligent Systems (J. Albus, A. Meystel, L.A. Zadeh, Series Editors), edited by John wiley & Son, 2001, pp. 347-366

@INBOOK{13668,
 author="Dubois Didier and Hadjali Allel and Prade Henri",
 title="Fuzzy qualitative reasoning with words",
 year="2001",
 series="Volume III in a Series of books on Intelligent Systems (J. Albus, A. Meystel, L.A. Zadeh, Series Editors)",
 edition="John wiley & Son",
 pages="347-366",
}

Revues Internationales

(21)

Abdelaziz Ouadah, Allel HADJALI, Fahima Nader , Karim Benouaret, SEFAP: An Efficient Approach for Ranking Skyline Web Services, International Journal of Ambient Intelligence and Humanized Computing (AIHC18), February, 2018, pp. 1-17

@ARTICLE{29626,
 author="Ouadah Abdelaziz and Hadjali Allel and Nader  Fahima and Benouaret Karim",
 title="SEFAP: An Efficient Approach for Ranking Skyline Web Services",
 year="2018",
 pages="1-17",
 journal="International Journal of Ambient Intelligence and Humanized Computing",
}

AMNA ABIDI, Saida ELMI, Mohamed Anis BACH TOBJI, Allel HADJALI, Boutheina Ben Yaghlane, Skyline queries over possibilistic RDF data, International Journal of Approximate Reasoning (IJAR), vol. 93, 2018, pp. 277-289

@ARTICLE{27967,
 author="Abidi AMNA and Elmi Saida and Bach Tobji Mohamed Anis and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Skyline queries over possibilistic RDF data",
 year="2018",
 volume="2018",
 pages="277-289",
 month="jan",
 journal="International Journal of Approximate Reasoning",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Mickael BARON, Handling Failing RDF Queries: From Diagnosis to Relaxation, Knowledge and Information Systems (KAIS 2016), March, 2016, pp. 167-195

@ARTICLE{21368,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel and Baron Mickael",
 title="Handling Failing RDF Queries: From Diagnosis to Relaxation",
 year="2016",
 pages="167-195",
 journal="Knowledge and Information Systems",
}

Zahira CHOUIREF, Abdelkader Belkhir, Karim Benouaret, Allel HADJALI, A Fuzzy Framework for Efficient User-Centric Web Service Selection, International Journal of Applied Soft Computing (ASOC16), vol. 4, n. 1, 2016, pp. 51-65

@ARTICLE{20646,
 author="Chouiref Zahira and Belkhir Abdelkader and Benouaret Karim and Hadjali Allel",
 title="A Fuzzy Framework for Efficient User-Centric Web Service Selection",
 year="2016",
 volume="2016",
 number="1",
 pages="51-65",
 journal="International Journal of Applied Soft Computing",
}

Didier DUBOIS, Allel HADJALI, Henri PRADE, Faycal TOUAZI, Corrigendum 'Database Preference Queries - A Possibilistic Logic Approach with Symbolic Priorities', Annals of Mathematics and Artificial Intelligence (AMAI15), 2015

@ARTICLE{16677,
 author="Dubois Didier and Hadjali Allel and Prade Henri and Touazi Faycal",
 title="Corrigendum 'Database Preference Queries - A Possibilistic Logic Approach with Symbolic Priorities'",
 year="2015",
 journal="Annals of Mathematics and Artificial Intelligence",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, Mahmoud Barhamgi, Zakaria MAAMAR, Quan Sheng, Web Service Compositions with Fuzzy Preferences: A Graded Dominance Relationship Based Approach, ACM Transactions on Internet Technology (TOIT 2013), vol. 13, n. 4, 2014

@ARTICLE{13894,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel and Barhamgi Mahmoud and Maamar Zakaria and Sheng Quan",
 title="Web Service Compositions with Fuzzy Preferences: A Graded Dominance Relationship Based Approach",
 year="2014",
 volume="2014",
 number="4",
 month="jul",
 journal="ACM Transactions on Internet Technology",
}

Zahira CHOUIREF, Abdelkader Belkhir, Allel HADJALI, Advanced Profile Similarity to Enhance Semantic Web Services Matching, International Journal of Recent Contributions from Engineering, Science & IT (IJRCE), vol. 1, 2013

@ARTICLE{13033,
 author="Chouiref Zahira and Belkhir Abdelkader and Hadjali Allel",
 title="Advanced Profile Similarity to Enhance Semantic Web Services Matching",
 year="2013",
 volume="2013",
 journal="International Journal of Recent Contributions from Engineering, Science & IT",
}

Allel HADJALI, Amine MOKHTARI, Olivier PIVERT, Expressing and processing complex preferences in route planning queries: Towards a fuzzy-set-based approach, Fuzzy Sets and Systems (FSS 2012), vol. 196, 2012

@ARTICLE{13198,
 author="Hadjali Allel and Mokhtari Amine and Pivert Olivier",
 title="Expressing and processing complex preferences in route planning queries: Towards a fuzzy-set-based approach",
 year="2012",
 volume="2012",
 journal="Fuzzy Sets and Systems",
}

Patrick BOSC, Guy DE TRE, Jozo DUJMOVIC, Allel HADJALI, Olivier PIVERT, Rita Ribeiro, Sławomir Zadrożny, On Advances in Soft Computing Applied to Database and Information Systems, Fuzzy Sets and Systems (FSS 2012), vol. 196, 2012, pp. 1-6

@ARTICLE{13184,
 author="Bosc Patrick and De Tre Guy and Dujmovic Jozo  and Hadjali Allel and Pivert Olivier and Ribeiro Rita  and Zadrożny Sławomir ",
 title="On Advances in Soft Computing Applied to Database and Information Systems",
 year="2012",
 volume="2012",
 pages="1-6",
 journal="Fuzzy Sets and Systems",
}

Allel HADJALI, Amine MOKHTARI, Olivier PIVERT, On a fuzzy-rule-based model for handling contextual preference queries, International Journal of Computational Intelligence Systems (IJCIS 2012), vol. 5, 2012

@ARTICLE{13206,
 author="Hadjali Allel and Mokhtari Amine and Pivert Olivier",
 title="On a fuzzy-rule-based model for handling contextual preference queries",
 year="2012",
 volume="2012",
 journal=" International Journal of Computational Intelligence Systems",
}

Allel HADJALI, Souhila KACI, Henri PRADE, Database preference queries - A possibilistic logic approach with symbolic priorities, Journal of Annals of Mathematics and Artificial Intelligence (AMAI), vol. 63, 2011

@ARTICLE{10235,
 author="Hadjali Allel and Kaci Souhila and Prade Henri",
 title="Database preference queries - A possibilistic logic approach with symbolic priorities",
 year="2011",
 volume="2011",
 journal="Journal of Annals of Mathematics and Artificial Intelligence",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, A Fuzzy Framework For Selecting Top-k Web Service Compositions, Applied Computing Review (ACR 2011), vol. 11, n. 3, 2011, pp. 32-40

@ARTICLE{13218,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel",
 title="A Fuzzy Framework For Selecting Top-k Web Service Compositions",
 year="2011",
 volume="2011",
 number="3",
 pages="32-40",
 journal="Applied Computing Review",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, An approach to competitive conditional preferences for database flexible querying, International Journal of Intelligent Systems (IJIS 2011), vol. 26, 2011, pp. .206-227

@ARTICLE{13226,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="An approach to competitive conditional preferences for database flexible querying",
 year="2011",
 volume="2011",
 pages=".206-227",
 journal="International Journal of Intelligent Systems",
}

Zohra Bellahsene, Salima Benbernou, Carmen BRANDO, Olivier PIVERT, Farouk TOUMANI, Stéphane Bernard, Pierre COLOMB, R. COLETTA, Emmanuel COQUERY, Fabien DE MARCHI, Fabien DUCHATEAU, Allel HADJALI, Mathieu ROCHE, FORUM: A Flexible Data Integration System Based on Data Semantics, SIGMOD Record (Sigmod10 2010), vol. 11-18, 2010, pp. 13-20

@ARTICLE{13532,
 author="Bellahsene Zohra and Benbernou Salima and Brando Carmen and Pivert Olivier and Toumani Farouk  and Bernard Stéphane and Colomb Pierre  and Coletta R. and Coquery Emmanuel and De Marchi Fabien  and Duchateau Fabien  and Hadjali Allel and Roche Mathieu ",
 title="FORUM: A Flexible Data Integration System Based on Data Semantics",
 year="2010",
 volume="2010",
 pages="13-20",
 journal="SIGMOD Record",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, Incremental controlled relaxation of failing flexible queries, Journal of Intelligent Information Systems (IJIS09a), vol. 3, 2009

@ARTICLE{13560,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="Incremental controlled relaxation of failing flexible queries",
 year="2009",
 volume="2009",
 journal="Journal of Intelligent Information Systems",
}

Patrick BOSC, Allel HADJALI, Gabriella PASI, Flexible queries in information systems, Journal of Intelligent Information Systems (IJIS09), vol. 3, 2009

@ARTICLE{13552,
 author="Bosc Patrick and Hadjali Allel and Pasi Gabriella",
 title="Flexible queries in information systems",
 year="2009",
 volume="2009",
 journal="Journal of Intelligent Information Systems",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, Empty versus overabundant answers to flexible queries, Fuzzy sets and Systems Journal (FSS08), vol. 159, 2008, pp. 1450-1467

@ARTICLE{13568,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="Empty versus overabundant answers to flexible queries",
 year="2008",
 volume="2008",
 pages="1450-1467",
 journal="Fuzzy sets and Systems Journal",
}

Didier DUBOIS, Allel HADJALI, Henri PRADE, A possibility theory-based approach to the handling of uncertain relations between temporal points, International Journal of Intelligent Systems (IJIS07), vol. 22, 2007, pp. 157-179

@ARTICLE{13607,
 author="Dubois Didier and Hadjali Allel and Prade Henri",
 title="A possibility theory-based approach to the handling of uncertain relations between temporal points",
 year="2007",
 volume="2007",
 pages="157-179",
 journal="International Journal of Intelligent Systems",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, Weakening of fuzzy relational queries: An absolute proximity relation-based approach, Journal of Mathware & Soft Computing (JMSC), vol. 14, 2007, pp. 33-55

@ARTICLE{13597,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="Weakening of fuzzy relational queries: An absolute proximity relation-based approach",
 year="2007",
 volume="2007",
 pages="33-55",
 journal="Journal of Mathware & Soft Computing",
}

Allel HADJALI, Didier DUBOIS, Henri PRADE, Qualitative reasoning based on fuzzy relative orders of magnitude, IEEE Transactions on Fuzzy Systems (TFS03), vol. 11, 2003, pp. 9-23

@ARTICLE{13616,
 author="Hadjali Allel and Dubois Didier and Prade Henri",
 title="Qualitative reasoning based on fuzzy relative orders of magnitude",
 year="2003",
 volume="2003",
 pages="9-23",
 journal="IEEE Transactions on Fuzzy Systems",
}

Didier DUBOIS, Allel HADJALI, Henri PRADE, Fuzziness and uncertainty in temporal reasoning, Journal of Universal Computer Science (JUCS 2003), vol. 9, 2003, pp. 1168-1194

@ARTICLE{13905,
 author="Dubois Didier and Hadjali Allel and Prade Henri",
 title="Fuzziness and uncertainty in temporal reasoning",
 year="2003",
 volume="2003",
 pages="1168-1194",
 journal="Journal of Universal Computer Science",
}

Revues Nationales

(3)

Ludovic LIETARD, Allel HADJALI, Daniel ROCACHER, Une définition pour un modèle QCL graduel, Revue d'Intelligence Artificielle (RIA15), vol. 5, 2015, pp. 543-567

@ARTICLE{19993,
 author="Lietard Ludovic and Hadjali Allel and Rocacher Daniel",
 title="Une définition pour un modèle QCL graduel",
 year="2015",
 volume="2015",
 pages="543-567",
 journal="Revue d'Intelligence Artificielle",
}

Katia ABBACI, Fernando LEMOS, Allel HADJALI, Daniela GRIGORI, Ludovic LIETARD, Daniel ROCACHER, Mokrane BOUZEGHOUB, Traitement des préférences dans le contexte de découverte de services Web : Une Approche Fondée sur les Ensembles Flous, Ingénierie des Systèmes d'Information (ISI12), vol. 17, n. 5, 2012, pp. 35-56

@ARTICLE{13631,
 author="Abbaci Katia and Lemos  Fernando and Hadjali Allel and Grigori Daniela  and Lietard Ludovic and Rocacher Daniel and Bouzeghoub Mokrane ",
 title="Traitement des préférences dans le contexte de découverte de services Web : Une Approche Fondée sur les Ensembles Flous",
 year="2012",
 volume="2012",
 number="5",
 pages="35-56",
 journal="Ingénierie des Systèmes d'Information",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, La notion de division tolérante et son intérêt pour remédier aux réponses vides, Ingénierie des Systèmes d'Information (ISI08), vol. 13, 2008, pp. 131-154

@ARTICLE{13643,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="La notion de division tolérante et son intérêt pour remédier aux réponses vides",
 year="2008",
 volume="2008",
 pages="131-154",
 journal="Ingénierie des Systèmes d'Information",
}

Conférences Internationales

(83)

Noussaiba BENADJIMI, Walid-Khaled Hidouci, Allel HADJALI, On Hash Bipolar Division: An Enhanced Processing of Novel and Conventional Forms of Bipolar Division, 18th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU 2018), 2018, pp. 749-761

@INPROCEEDINGS{29578,
 author="Benadjimi Noussaiba and Hidouci Walid-Khaled and Hadjali Allel",
 title="On Hash Bipolar Division: An Enhanced Processing of Novel and Conventional Forms of Bipolar Division",
 booktitle="18th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems",
 year="2018",
 pages="749-761",
}

Chourouk BELHEOUANE, Stéphane JEAN, Brice CHARDIN, Allel HADJALI, Hamid Azzoune, Borders of Theories for Cooperative Querying over Uncertain Databases, IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2018), 2018

@INPROCEEDINGS{29515,
 author="Belheouane Chourouk and Jean Stéphane and Chardin Brice and Hadjali Allel and Azzoune Hamid",
 title="Borders of Theories for Cooperative Querying over Uncertain Databases",
 booktitle="IEEE International Conference on Fuzzy Systems",
 year="2018",
 month="jul",
}

Fatma Ezzahra Bousnina, Mohamed Anis BACH TOBJI, Mouna Chebah, Allel HADJALI, Boutheina Ben Yaghlane, Evidential Top-k Queries Evaluation: Algorithms and Experiments, 18th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU 2018), 2018, pp. 407-417

@INPROCEEDINGS{29507,
 author="Bousnina Fatma Ezzahra and Bach Tobji Mohamed Anis and Chebah Mouna and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Evidential Top-k Queries Evaluation: Algorithms and Experiments",
 booktitle="18th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems",
 year="2018",
 pages="407-417",
}

Fatma Ezzahra BOUSNINA, Mohamed Anis BACH TOBJI, Mouna Chebah, Allel HADJALI, Boutheina Ben Yaghlane, Evidential Top-k Queries Evaluation: Algorithms and Experiments, 18th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU 2018), 2018, pp. 407-417

@INPROCEEDINGS{29534,
 author="Bousnina Fatma Ezzahra and Bach Tobji Mohamed Anis and Chebah Mouna and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Evidential Top-k Queries Evaluation: Algorithms and Experiments",
 booktitle="18th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems",
 year="2018",
 pages="407-417",
}

Sana NADOURI, Yassine OUHAMMOU, Sahnoun ZAIDI, Allel HADJALI, Towards a multi-agent approach for distributed decision support systems, 27th IEEE International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises (WETICE 2018), edited by IEEE, edited by IEEE, 2018, pp. 6

@INPROCEEDINGS{29387,
 author="Nadouri Sana and Ouhammou Yassine and Zaidi Sahnoun and Hadjali Allel",
 title="Towards a multi-agent approach for distributed decision support systems",
 booktitle="27th IEEE International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises",
 year="2018",
 editor="IEEE",
 pages="6",
 publisher="IEEE",
 month="jun",
}

Ibrahim DELLAL, Stéphane JEAN, Allel HADJALI, Brice CHARDIN, Mickael BARON, On Addressing the Empty Answer Problem in Uncertain Knowledge Bases, Database and Expert Systems Applications (DEXA 2017), vol. 10438, LNCS, edited by Springer, 2017, pp. 120-129

@INPROCEEDINGS{27034,
 author="Dellal Ibrahim and Jean Stéphane and Hadjali Allel and Chardin Brice and Baron Mickael",
 title="On Addressing the Empty Answer Problem in Uncertain Knowledge Bases",
 booktitle="Database and Expert Systems Applications",
 year="2017",
 pages="120-129",
 publisher="Springer",
 month="aug",
}

Chourouk BELHEOUANE, Stéphane JEAN, Allel HADJALI, Hamid Azzoune, Handling failing queries over uncertain databases, IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2017), 2017, pp. 1-6

@INPROCEEDINGS{27679,
 author="Belheouane Chourouk and Jean Stéphane and Hadjali Allel and Azzoune Hamid",
 title="Handling failing queries over uncertain databases",
 booktitle="IEEE International Conference on Fuzzy Systems",
 year="2017",
 pages="1-6",
 month="jul",
}

AMNA ABIDI, Nassim BAHRI, Mohamed Anis BACH TOBJI, Allel HADJALI, Boutheina Ben Yaghlane, First Steps Towards an Electronic Meta-journal Platform Based on Crowdsourcing, International Conference on Digital Economy (ICDEc), Lecture Notes in Business Information Processing, ATEN - Tunisian Association of Digital Economy, edited by Springer, 2017, pp. 175-185

@INPROCEEDINGS{28010,
 author="Abidi AMNA and Bahri Nassim and Bach Tobji Mohamed Anis and Hadjali Allel and Ben Yaghlane Boutheina",
 title="First Steps Towards an Electronic Meta-journal Platform Based on Crowdsourcing",
 booktitle="International Conference on Digital Economy",
 year="2017",
 pages="175-185",
 organization="ATEN - Tunisian Association of Digital Economy",
 publisher="Springer",
 month="may",
}

AMNA ABIDI, Mohamed Anis BACH TOBJI, Allel HADJALI, Boutheina Ben Yaghlane, Skyline Modeling and Computing over Trust RDF Data, , 19th International Conference on Enterprise Information Systems (ICEIS 2017), edited by Slimane Hammoudi and Michal Smialek and Olivier Camp and Joaquim Filipe, INSTICC, edited by SciTePress, 2017, pp. 634-643

@INPROCEEDINGS{27985,
 author="Abidi AMNA and Bach Tobji Mohamed Anis and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Skyline Modeling and Computing over Trust RDF Data, ",
 booktitle="19th International Conference on Enterprise Information Systems",
 year="2017",
 editor="Slimane Hammoudi and Michal Smialek and Olivier Camp and Joaquim Filipe",
 pages="634-643",
 organization=" INSTICC",
 publisher="SciTePress",
 month="apr",
}

Djamal BELKASMI, Allel HADJALI, Relaxation des Requêtes Skyline : Une Approche Centrée Utilisateur, 16ème Conférence Internationale sur l'Extraction et la Gestion des Connaissances (EGC), 20 au 23 Janvier, Reims (EGC16), 2016

@INPROCEEDINGS{20109,
 author="Belkasmi Djamal and Hadjali Allel",
 title="Relaxation des Requêtes Skyline : Une Approche Centrée Utilisateur",
 booktitle="16ème Conférence Internationale sur l'Extraction et la Gestion des Connaissances (EGC), 20 au 23 Janvier, Reims",
 year="2016",
}

Aymen GAMMOUDI, Allel HADJALI, Boutheina Ben Yaghlane, An Advanced Tool for Managing Fuzzy Complex Temporal Information, 4th International Conference of Artificial Intelligence, Soft Computing (AISC 2016), Computer Science & Information Technology (CS & IT), edited by Computer Science Conference Proceedings , 2016

@INPROCEEDINGS{19887,
 author="Gammoudi Aymen and Hadjali Allel and Ben Yaghlane Boutheina",
 title="An Advanced Tool for Managing Fuzzy Complex Temporal Information",
 booktitle="4th International Conference of Artificial Intelligence, Soft Computing",
 year="2016",
 publisher="Computer Science Conference Proceedings ",
 month="jan",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Mickael BARON, RDF Query Relaxation Strategies Based on Failure Causes (Best Research Paper Award), 13th International Extented Semantic Web Conference, Heraklion, Greece (ESWC16), 2016, pp. 439-454

@INPROCEEDINGS{21268,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel and Baron Mickael",
 title="RDF Query Relaxation Strategies Based on Failure Causes (Best Research Paper Award)",
 booktitle="13th International Extented Semantic Web Conference, Heraklion, Greece",
 year="2016",
 pages="439-454",
 month="may",
}

Saida ELMI, Allel HADJALI, Mohamed Anis BACH TOBJI, Boutheina Ben Yaghlane, Imperfect Top-k Skyline Query with Confidence Level. , The 13th ACS/IEEE International conference on computer systems and Applications (AICCSA 2016), 2016

@INPROCEEDINGS{23919,
 author="Elmi Saida and Hadjali Allel and Bach Tobji Mohamed Anis and Ben Yaghlane Boutheina",
 title="Imperfect Top-k Skyline Query with Confidence Level. ",
 booktitle="The 13th ACS/IEEE International conference on computer systems and Applications",
 year="2016",
 month="nov",
}

Mohamed HADDACHE, Djamal BELKASMI, Allel HADJALI, Hamid Azzoune, An Outranking-Based Approach for Skyline Refinement, 8th IEEE International Conference on Intelligent Systems (IEEE-IS16), 2016

@INPROCEEDINGS{21516,
 author="Haddache Mohamed and Belkasmi Djamal and Hadjali Allel and Azzoune Hamid",
 title="An Outranking-Based Approach for Skyline Refinement",
 booktitle="8th IEEE International Conference on Intelligent Systems",
 year="2016",
 month="sep",
}

Ahmed Samet, Badran RADDAOUI, Tien Tuan Dao, Allel HADJALI, Argumentation Framework based on Evidence Theory, International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU 2016), 2016

@INPROCEEDINGS{21461,
 author="Samet Ahmed and Raddaoui Badran and Tuan Dao Tien and Hadjali Allel",
 title="Argumentation Framework based on Evidence Theory",
 booktitle="International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems",
 year="2016",
 month="jun",
}

Aymen GAMMOUDI, Allel HADJALI, Boutheina Ben Yaghlane, Modelling Temporal Relations between Fuzzy Time Intervals: A Disjunctive View , IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2016), 2016

@INPROCEEDINGS{21487,
 author="Gammoudi Aymen and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Modelling Temporal Relations between Fuzzy Time Intervals: A Disjunctive View ",
 booktitle="IEEE International Conference on Fuzzy Systems",
 year="2016",
 month="jul",
}

Djamal BELKASMI, Allel HADJALI, Hamid Azzoune, Making the Skyline Larger: A Fuzzy-Neighborhood-Based Approach, International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU 2016), 2016

@INPROCEEDINGS{21428,
 author="Belkasmi Djamal and Hadjali Allel and Azzoune Hamid",
 title="Making the Skyline Larger: A Fuzzy-Neighborhood-Based Approach",
 booktitle="International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems",
 year="2016",
 month="jun",
}

Saida ELMI, Mohamed Anis BACH TOBJI, Allel HADJALI, Boutheina Ben Yaghlane, Efficient Skyline Maintenance over Frequently Updated Evidential Databases, International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU 2016), 2016

@INPROCEEDINGS{21405,
 author="Elmi Saida and Bach Tobji Mohamed Anis and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Efficient Skyline Maintenance over Frequently Updated Evidential Databases",
 booktitle="International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems",
 year="2016",
 month="jun",
}

Dalila KOULOUGLI, Allel HADJALI, Idir RASSOUL, Leveraging Human Factors to Enhance Query Answering in Crowdsourcing Systems, 10th IEEE International Conference on Research Challenges in Information Science (RCIS 2016), edited by IEEE, 2016

@INPROCEEDINGS{22214,
 author="Koulougli Dalila and Hadjali Allel and Rassoul Idir",
 title="Leveraging Human Factors to Enhance Query Answering in Crowdsourcing Systems",
 booktitle="10th IEEE International Conference on Research Challenges in Information Science",
 year="2016",
 editor="IEEE",
 month="jun",
}

Abdelkader ALEM, Youcef DAHMANI, Allel HADJALI, On the Use of Belief Functions to Improve High Performance Intrusion Detection System, 12th International Conference on SIGNAL IMAGE TECHNOLOGY and INTERNET BASED SYSTEMS (SITIS2016), Workshop: on Numerical Algorithms and Methods for Data Analysis and Classification (NAMDAC) (SITIS 2016), 2016

@INPROCEEDINGS{25100,
 author="Alem Abdelkader  and Dahmani Youcef  and Hadjali Allel",
 title="On the Use of Belief Functions to Improve High Performance Intrusion Detection System",
 booktitle="12th International Conference on SIGNAL IMAGE TECHNOLOGY and INTERNET BASED SYSTEMS (SITIS2016), Workshop: on Numerical Algorithms and Methods for Data Analysis and Classification (NAMDAC)",
 year="2016",
 month="nov",
}

Fatma Ezzahra Bousnina, Saida ELMI, Mohamed Anis BACH TOBJI, Mouna Chebah, Allel HADJALI, Boutheina Ben Yaghlane, Object-relational implementation of evidential databases, International Conference on Digital Economy (ICDEc 2016), 2016, pp. 80--87

@INPROCEEDINGS{23889,
 author="Bousnina Fatma Ezzahra and Elmi Saida and Bach Tobji Mohamed Anis and Chebah Mouna and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Object-relational implementation of evidential databases",
 booktitle="International Conference on Digital Economy",
 year="2016",
 pages="80--87",
 month="apr",
}

Dalila KOULOUGLI, Allel HADJALI, Idir RASSOUL, Query Answering in Crowdsourcing Systems: A Belief Functions-Based Approach, North American Fuzzy Information Processing Society (NAFIPS 2016), 2016

@INPROCEEDINGS{22205,
 author="Koulougli Dalila and Hadjali Allel and Rassoul Idir",
 title="Query Answering in Crowdsourcing Systems: A Belief Functions-Based Approach",
 booktitle="North American Fuzzy Information Processing Society",
 year="2016",
 month="oct",
}

Saida ELMI, Allel HADJALI, Mohamed Anis BACH TOBJI, Boutheina Ben Yaghlane, Efficient Distributed Skyline over Imperfect Data Modeled by the Evidence Theory, The 28th IEEE International Conference on Tools with Artificial Intelligence (ICTAI 2016), 2016

@INPROCEEDINGS{23928,
 author="Elmi Saida and Hadjali Allel and Bach Tobji Mohamed Anis and Ben Yaghlane Boutheina",
 title="Efficient Distributed Skyline over Imperfect Data Modeled by the Evidence Theory",
 booktitle="The 28th IEEE International Conference on Tools with Artificial Intelligence",
 year="2016",
 month="nov",
}

Abir AMAMI, Zied ELOUEDI, Allel HADJALI, A Clustering Based Approach for Query Relaxation in Evidential Databases, The 13th ACS/IEEE International conference on computer systems and Applications (AICCSA 2016), 2016

@INPROCEEDINGS{25077,
 author="Amami Abir and Elouedi Zied and Hadjali Allel",
 title="A Clustering Based Approach for Query Relaxation in Evidential Databases",
 booktitle="The 13th ACS/IEEE International conference on computer systems and Applications",
 year="2016",
 month="nov",
}

Zied BEN OTHMANE, Allel HADJALI, Group Formation with Incomplete Profiles, 12th International Conference on SIGNAL IMAGE TECHNOLOGY and INTERNET BASED SYSTEMS (SITIS2016), Workshop: on Numerical Algorithms and Methods for Data Analysis and Classification (NAMDAC) (SITIS 2016), 2016

@INPROCEEDINGS{25089,
 author="Ben Othmane Zied and Hadjali Allel",
 title="Group Formation with Incomplete Profiles",
 booktitle="12th International Conference on SIGNAL IMAGE TECHNOLOGY and INTERNET BASED SYSTEMS (SITIS2016), Workshop: on Numerical Algorithms and Methods for Data Analysis and Classification (NAMDAC)",
 year="2016",
 month="nov",
}

Nessrine EL HADJ SALEM, Allel HADJALI, Aymen GAMMOUDI, Boutheina Ben Yaghlane, An Evidential Approach for Managing Temporal Relations Uncertainty, 8th International Conference on Computational Collective Inteligence (ICCCI 2016), Halkidiki, Greece, 28-30 October (ICCCI16), 2016

@INPROCEEDINGS{22169,
 author="El Hadj Salem Nessrine and Hadjali Allel and Gammoudi Aymen and Ben Yaghlane Boutheina",
 title="An Evidential Approach for Managing Temporal Relations Uncertainty",
 booktitle="8th International Conference on Computational Collective Inteligence (ICCCI 2016), Halkidiki, Greece, 28-30 October",
 year="2016",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Mickael BARON, Cooperative Techniques for SPARQL Query Relaxation in RDF Databases, 12th Internationa Extended Semantic Web Conference, Portoroz, Slovenia (ESWC15), 2015, pp. 237-252

@INPROCEEDINGS{18000,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel and Baron Mickael",
 title="Cooperative Techniques for SPARQL Query Relaxation in RDF Databases",
 booktitle="12th Internationa Extended Semantic Web Conference, Portoroz, Slovenia",
 year="2015",
 pages="237-252",
}

Mourad Ouziri, Salima Benbernou, Naouel Karam , Allel HADJALI, Managing QoS Acceptability for Service Selection : A Probabilistic Description Logics Based Approach, The 28th International Description Logics Workshop, Athens, Greece, June 7-10 (DL15), 2015

@INPROCEEDINGS{18253,
 author="Ouziri Mourad  and Benbernou Salima and Karam  Naouel and Hadjali Allel",
 title="Managing QoS Acceptability for Service Selection : A Probabilistic Description Logics Based Approach",
 booktitle="The 28th International Description Logics Workshop, Athens, Greece, June 7-10",
 year="2015",
}

Djamal BELKASMI, Allel HADJALI, MP2R: A Human-Centric Skyline Relaxation Approach, International Conference on Flexible Query Answering Systems (FQAS15), 2015

@INPROCEEDINGS{18832,
 author="Belkasmi Djamal and Hadjali Allel",
 title="MP2R: A Human-Centric Skyline Relaxation Approach",
 booktitle="International Conference on Flexible Query Answering Systems",
 year="2015",
 month="oct",
}

Abdelaziz Ouadah, Karim Benouaret, Allel HADJALI, Fahima Nader , Combining Skyline and Multi-Criteria Decision Methods to Enhance Web Services Selection, 12th International Symposium on Programming and Systems (ISPS 2015), 2015

@INPROCEEDINGS{18057,
 author="Ouadah Abdelaziz and Benouaret Karim and Hadjali Allel and Nader  Fahima",
 title="Combining Skyline and Multi-Criteria Decision Methods to Enhance Web Services Selection",
 booktitle="12th International Symposium on Programming and Systems",
 year="2015",
 month="apr",
}

Abdelaziz Ouadah, Karim Benouaret, Allel HADJALI, Fahima Nader , SkyAP-S3: A Hybrid Approach for Efficient Skyline Services Selection, 8th IEEE International Conference on Service Oriented Computing & Applications (SOCA 2015), Rome, Italy, 19-21 October (SOCA15), 2015

@INPROCEEDINGS{18801,
 author="Ouadah Abdelaziz and Benouaret Karim and Hadjali Allel and Nader  Fahima",
 title="SkyAP-S3: A Hybrid Approach for Efficient Skyline Services Selection",
 booktitle="8th IEEE International Conference on Service Oriented Computing & Applications (SOCA 2015), Rome, Italy, 19-21 October",
 year="2015",
 month="oct",
}

Saida ELMI, Karim Benouaret, Allel HADJALI, Mohamed Anis BACH TOBJI, Boutheina Ben Yaghlane, Requêtes Skyline en présence des données évidentielles, 15ème Conférence Internationale sur l'Extraction et la Gestion des Connaissances (EGC), 27 au 30 Janvier, Luxembourg (EGC-15), 2015

@INPROCEEDINGS{16624,
 author="Elmi Saida and Benouaret Karim and Hadjali Allel and Bach Tobji Mohamed Anis and Ben Yaghlane Boutheina",
 title="Requêtes Skyline en présence des données évidentielles",
 booktitle="15ème Conférence Internationale sur l'Extraction et la Gestion des Connaissances (EGC), 27 au 30 Janvier, Luxembourg",
 year="2015",
 month="jan",
}

Abdellah Kouider El Ouahed, Allel HADJALI, Hamid Azzoune, Putting together Skyline and Agent Paradigms to Efficiently Composing Web Services, 8th IEEE International Conference on Service Oriented Computing & Applications (SOCA 2015), Rome, Italy, 19-21 October (SOCA15), 2015

@INPROCEEDINGS{18823,
 author="Kouider El Ouahed Abdellah and Hadjali Allel and Azzoune Hamid",
 title="Putting together Skyline and Agent Paradigms to Efficiently Composing Web Services",
 booktitle="8th IEEE International Conference on Service Oriented Computing & Applications (SOCA 2015), Rome, Italy, 19-21 October",
 year="2015",
 month="oct",
}

Aymen GAMMOUDI, Allel HADJALI, Boutheina Ben Yaghlane, A Fuzzy Tolerance-Based Semantics of Allen Temporal Relations: First Steps, 7th International Conference on Computational Collective Intelligence Technologies and Applications ICCCI, Madrid, Spain (ICCCI15), Vol. 9329, edited by Springer, 2015, pp. 453-462

@INPROCEEDINGS{18327,
 author="Gammoudi Aymen and Hadjali Allel and Ben Yaghlane Boutheina",
 title="A Fuzzy Tolerance-Based Semantics of Allen Temporal Relations: First Steps",
 booktitle="7th International Conference on Computational Collective Intelligence Technologies and Applications ICCCI, Madrid, Spain",
 year="2015",
 editor="Springer",
 pages="453-462",
 month="sep",
}

Yves MOUAFO TCHINDA, Zoe FAGET, Allel HADJALI, GoSim : A tool for flexible Preference-Driven Group Formation, The 30th ACM-Symposium On Applied Computing (ACM-SAC), Salamanca, Spain (ACM-SAC15), 2015

@INPROCEEDINGS{16659,
 author="Mouafo Tchinda Yves and Faget Zoe and Hadjali Allel",
 title="GoSim : A tool for flexible Preference-Driven Group Formation",
 booktitle="The 30th ACM-Symposium On Applied Computing (ACM-SAC), Salamanca, Spain",
 year="2015",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Mickael BARON, QaRS: A User-Friendly Graphical Tool for Semantic Query Design and Relaxation (Demo Paper) , 18th International Conference on Extending Database Technology, Brussels, Belgium (EDBT15), 2015, pp. 553-556

@INPROCEEDINGS{16667,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel and Baron Mickael",
 title="QaRS: A User-Friendly Graphical Tool for Semantic Query Design and Relaxation (Demo Paper) ",
 booktitle="18th International Conference on Extending Database Technology, Brussels, Belgium",
 year="2015",
 pages="553-556",
 month="mar",
}

Samia BOULKRINAT, Allel HADJALI, Aicha MOKHTARI, Crowd-Voting-Based Group Recommender Systems, 12th International Symposium on Programming and Systems (ISPS 2015), 2015

@INPROCEEDINGS{18064,
 author="Boulkrinat Samia and Hadjali Allel and Mokhtari Aicha",
 title="Crowd-Voting-Based Group Recommender Systems",
 booktitle="12th International Symposium on Programming and Systems",
 year="2015",
 month="apr",
}

Mahmoud Hamiche, Allel HADJALI, Habiba Drias, A Strong-Dominance-Based Approach for Refining the Skyline, 12th International Symposium on Programming and Systems (ISPS 2015), 2015

@INPROCEEDINGS{18072,
 author="Hamiche Mahmoud  and Hadjali Allel and Drias Habiba",
 title="A Strong-Dominance-Based Approach for Refining the Skyline",
 booktitle="12th International Symposium on Programming and Systems",
 year="2015",
 month="apr",
}

Aymen GAMMOUDI, Allel HADJALI, Boutheina Ben Yaghlane, An Intelligent Flexible Querying Approach for Temporal Databases, 7th International Conference on Intelligent Systems (IS14), Vol. 322, edited by Springer, 2014, pp. 523-534

@INPROCEEDINGS{15537,
 author="Gammoudi Aymen and Hadjali Allel and Ben Yaghlane Boutheina",
 title="An Intelligent Flexible Querying Approach for Temporal Databases",
 booktitle="7th International Conference on Intelligent Systems",
 year="2014",
 editor="Springer",
 pages="523-534",
 month="sep",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Endowing Semantic Query Languages with Advanced Relaxation Capabilities, 21st International Symposium on Methodologies for Intelligent Systems (ISMIS 2014), 2014

@INPROCEEDINGS{14779,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel",
 title="Endowing Semantic Query Languages with Advanced Relaxation Capabilities",
 booktitle="21st International Symposium on Methodologies for Intelligent Systems",
 year="2014",
 month="jun",
}

Samia BOULKRINAT, Allel HADJALI, Aicha MOKHTARI, Handling Preferences Under Uncertainty in Recommender Systems, IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2014), 2014

@INPROCEEDINGS{14682,
 author="Boulkrinat Samia and Hadjali Allel and Mokhtari Aicha",
 title="Handling Preferences Under Uncertainty in Recommender Systems",
 booktitle="IEEE International Conference on Fuzzy Systems",
 year="2014",
 month="jul",
}

Zahira CHOUIREF, Karim Benouaret, Allel HADJALI, Abdelkader Belkhir, Making Web Services Selection more Customized: A Fuzzy-Logic-Theory-Based Approach, Phd Symposium, 12th International Conference on Service Oriented Computing ICSOC'14, Paris, France, November 3-6 (ICSOC14), 2014

@INPROCEEDINGS{15754,
 author="Chouiref Zahira and Benouaret Karim and Hadjali Allel and Belkhir Abdelkader",
 title="Making Web Services Selection more Customized: A Fuzzy-Logic-Theory-Based Approach",
 booktitle="Phd Symposium, 12th International Conference on Service Oriented Computing ICSOC'14, Paris, France, November 3-6",
 year="2014",
}

Zahira CHOUIREF, Karim Benouaret, Allel HADJALI, Abdelkader Belkhir, Multi Matchmaking Approach for Semantic Web Services Selection based on Fuzzy Inference, 14th International Conference on Web Engineering ICWE'14, Toulouse, France (ICWE14), 2014

@INPROCEEDINGS{15545,
 author="Chouiref Zahira and Benouaret Karim and Hadjali Allel and Belkhir Abdelkader",
 title="Multi Matchmaking Approach for Semantic Web Services Selection based on Fuzzy Inference",
 booktitle="14th International Conference on Web Engineering ICWE'14, Toulouse, France",
 year="2014",
}

Ludovic LIETARD, Allel HADJALI, Daniel ROCACHER, Towards a Gradual QCL Model for Database Querying, International Conference on Information Processing and Management of Uncertainty in Knwoledge-Based systems (IMPU14), 2014

@INPROCEEDINGS{14741,
 author="Lietard Ludovic and Hadjali Allel and Rocacher Daniel",
 title="Towards a Gradual QCL Model for Database Querying",
 booktitle="International Conference on Information Processing and Management of Uncertainty in Knwoledge-Based systems",
 year="2014",
 month="jul",
}

Katia ABBACI, Allel HADJALI, Ludovic LIETARD, Daniel ROCACHER, A Linguistic Quantifier-Based Approach for Skyline Refinement, IFSA World Congress (IFSA13), 2013, pp. 321-326

@INPROCEEDINGS{13067,
 author="Abbaci Katia and Hadjali Allel and Lietard Ludovic and Rocacher Daniel",
 title="A Linguistic Quantifier-Based Approach for Skyline Refinement",
 booktitle="IFSA World Congress",
 year="2013",
 pages="321-326",
}

Zahira CHOUIREF, Allel HADJALI, Abdelkader Belkhir, A New Similarity Measure to Improve the Discovery of Semantic Web Services Based on Profile, International Conference on Web and Information Technologies, Tunisia (ICWIT13), 2013

@INPROCEEDINGS{13096,
 author="Chouiref Zahira and Hadjali Allel and Belkhir Abdelkader",
 title="A New Similarity Measure to Improve the Discovery of Semantic Web Services Based on Profile",
 booktitle="International Conference on Web and Information Technologies, Tunisia",
 year="2013",
}

Saida ELMI, Karim Benouaret, Allel HADJALI, Mohamed Anis BACH TOBJI, Boutheina Ben Yaghlane, Computing Skyline from Evidential Data, International Conference on Scalable Uncertainty Management (SUM 2013), 2013

@INPROCEEDINGS{15574,
 author="Elmi Saida and Benouaret Karim and Hadjali Allel and Bach Tobji Mohamed Anis and Ben Yaghlane Boutheina",
 title="Computing Skyline from Evidential Data",
 booktitle=" International Conference on Scalable Uncertainty Management",
 year="2013",
 month="sep",
}

Samia BOULKRINAT, Allel HADJALI, Aicha MOKHTARI, Enhancing recommender systems prediction through qualitative preferences relations, International Symposuim on Programming and Suystems (ISPS 2013), 2013

@INPROCEEDINGS{13088,
 author="Boulkrinat Samia and Hadjali Allel and Mokhtari Aicha",
 title="Enhancing recommender systems prediction through qualitative preferences relations",
 booktitle="International Symposuim on Programming and Suystems",
 year="2013",
}

Samia BOULKRINAT, Allel HADJALI, Aicha MOKHTARI, Towards recommender systems based on a fuzzy preference aggregation, European Society for Fuzzy Logic and Technology (EUSFLAT13), 2013

@INPROCEEDINGS{13080,
 author="Boulkrinat Samia and Hadjali Allel and Mokhtari Aicha",
 title="Towards recommender systems based on a fuzzy preference aggregation",
 booktitle="European Society for Fuzzy Logic and Technology",
 year="2013",
}

Zahira CHOUIREF, Abdelkader Belkhir, Allel HADJALI, Enhancing Semantic Web Services Discovery Using Similarity of Contextual Profile, International Conference on Internet and Web Applications and Services (ICIW 2013), 2013

@INPROCEEDINGS{13104,
 author="Chouiref Zahira and Belkhir Abdelkader and Hadjali Allel",
 title="Enhancing Semantic Web Services Discovery Using Similarity of Contextual Profile",
 booktitle="International Conference on Internet and Web Applications and Services",
 year="2013",
}

Stéphane JEAN, Allel HADJALI, Ammar Mars, Towards a Cooperative Query Language for Semantic Web Database Queries (Short Paper), Move to Meaningful Internet Systems: OTM 2013 - Confederated International Conferences: CoopIS, DOA-SVI and ODBASE (ODBASE 2013), 2013

@INPROCEEDINGS{11874,
 author="Jean Stéphane and Hadjali Allel and Mars Ammar",
 title="Towards a Cooperative Query Language for Semantic Web Database Queries (Short Paper)",
 booktitle="Move to Meaningful Internet Systems: OTM 2013 - Confederated International Conferences: CoopIS, DOA-SVI and ODBASE",
 year="2013",
 month="sep",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, WS-Sky: An Efficient and Flexible Framework for QoS-AwareWeb Service Selection, 9th International Conference on ServicesComputing (SCC 12), 2012

@INPROCEEDINGS{16736,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel",
 title="WS-Sky: An Efficient and Flexible Framework for QoS-AwareWeb Service Selection",
 booktitle="9th International Conference on ServicesComputing",
 year="2012",
 month="jun",
}

Olivier PIVERT, Grégory Smits, Allel HADJALI, Carmen BRANDO, LUCIFER : Un système de détection de conflits dans les requêtes flexibles, EGC (EGC12), 2012, pp. 617-620

@INPROCEEDINGS{16818,
 author="Pivert Olivier and Smits Grégory and Hadjali Allel and Brando Carmen",
 title="LUCIFER : Un système de détection de conflits dans les requêtes flexibles",
 booktitle="EGC",
 year="2012",
 pages="617-620",
}

Katia ABBACI, Fernando LEMOS, Allel HADJALI, Daniela GRIGORI, Ludovic LIETARD, Daniel ROCACHER, Mokrane BOUZEGHOUB, A Bipolar Approach to the Handling of User Preferences in Business Processes Retrieval, IPMU (IPMU12), 2012, pp. 400-409

@INPROCEEDINGS{16806,
 author="Abbaci Katia and Lemos  Fernando and Hadjali Allel and Grigori Daniela  and Lietard Ludovic and Rocacher Daniel and Bouzeghoub Mokrane ",
 title="A Bipolar Approach to the Handling of User Preferences in Business Processes Retrieval",
 booktitle="IPMU",
 year="2012",
 pages="400-409",
}

Soumaya Amdoun, Mahmoud Barhamgi, Allel HADJALI, Djamal Benslimane, Rim FAIZ, Parisa Ghodous, A Preference-Aware Query Model for Data Web Services, 31st International Conference on Conceptual Modeling (ER 2012) (ER-12), edited by Springer, 2012, pp. 409-422

@INPROCEEDINGS{16715,
 author="Amdoun Soumaya  and Barhamgi Mahmoud and Hadjali Allel and Benslimane Djamal and  Faiz  Rim and Ghodous  Parisa",
 title="A Preference-Aware Query Model for Data Web Services",
 booktitle="31st International Conference on Conceptual Modeling (ER 2012)",
 year="2012",
 editor="Springer",
 pages="409-422",
 month="oct",
}

Karim Benouaret, Dimitris Sacharidis , Djamal Benslimane, Allel HADJALI, Majority-Rule-Based Web Service Selection, WISE, 2012 (WISE12), 2012, pp. 689-695

@INPROCEEDINGS{16795,
 author="Benouaret Karim and Sacharidis  Dimitris and Benslimane Djamal and Hadjali Allel",
 title="Majority-Rule-Based Web Service Selection",
 booktitle="WISE, 2012",
 year="2012",
 pages="689-695",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, Selecting Skyline Web Data Services for Multiple Users Preferences, the 19th International Conference on Web Services (IEEE ICWS 2012) (ICWS12), 2012

@INPROCEEDINGS{16753,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel",
 title="Selecting Skyline Web Data Services for Multiple Users Preferences",
 booktitle="the 19th International Conference
on Web Services (IEEE ICWS 2012)",
 year="2012",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, Selecting Skyline Web Services from Uncertain QoS, 9th International Conference on ServicesComputing (SCC 12), 2012

@INPROCEEDINGS{16745,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel",
 title="Selecting Skyline Web Services from Uncertain QoS",
 booktitle="9th International Conference on ServicesComputing",
 year="2012",
 month="jun",
}

Allel HADJALI, Olivier PIVERT, A Fuzzy-Rule-Based Approach to the Handling of Inferred Fuzzy Predicates in Database Queries, 9th International Conference on Flexible Query Answering Systems (FQAS2011), Vol 7022, edited by Springer, 2011, pp. 448-459

@INPROCEEDINGS{18856,
 author="Hadjali Allel and Pivert Olivier",
 title="A Fuzzy-Rule-Based Approach to the Handling of Inferred Fuzzy Predicates in Database Queries",
 booktitle="9th International Conference on Flexible Query Answering Systems",
 year="2011",
 editor="Springer",
 pages="448-459",
}

Olivier PIVERT, Grégory Smits, Allel HADJALI, Processing Fuzzy Queries in a Peer Data Management System Using Distributed Fuzzy Summaries, 5th International Conference on Scalability and Uncertainty Management (SUM'11), LNAI 6929 (SUM11), 2011, pp. 359–372

@INPROCEEDINGS{18900,
 author="Pivert Olivier and Smits Grégory and Hadjali Allel",
 title="Processing Fuzzy Queries in a Peer Data Management System Using Distributed Fuzzy Summaries",
 booktitle="5th International Conference on Scalability and Uncertainty Management (SUM'11), LNAI 6929",
 year="2011",
 pages="359–372",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, FuDoCS: A Web Service Composition System Based on Fuzzy Dominance for Preference Query Answering, 37th International Conference on Very Large Data Bases (VLDB-2011), Demo track, Seattle, WA, USA (VLDB11), 2011, pp. 1430-1433

@INPROCEEDINGS{18908,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel",
 title="FuDoCS: A Web Service Composition System Based on Fuzzy Dominance for Preference Query Answering",
 booktitle="37th International Conference on Very Large Data Bases (VLDB-2011), Demo track, Seattle, WA, USA",
 year="2011",
 pages="1430-1433",
}

Olivier PIVERT, Allel HADJALI, Grégory Smits, Searching for a compromise between satisfaction and diversity in database fuzzy querying, 7th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT-2011) and “les rencontres francophones sur la Logique Floue et ses Applications” (LFA-2011), Aix-les-Bains, France (EUSFLAT11), 2011, pp. 402-408

@INPROCEEDINGS{18917,
 author="Pivert Olivier and Hadjali Allel and Smits Grégory",
 title="Searching for a compromise between satisfaction and diversity in database fuzzy querying",
 booktitle="7th Conference of the European Society for Fuzzy Logic and Technology (EUSFLAT-2011) and “les rencontres francophones sur la Logique Floue et ses Applications” (LFA-2011), Aix-les-Bains, France",
 year="2011",
 pages="402-408",
 month="oct",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, On the use of fuzzy dominance for computing service skyline based on QoS, 9th IEEE International Conference on Web Services (ICWS11), 2011, pp. 540-547

@INPROCEEDINGS{18925,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel",
 title="On the use of fuzzy dominance for computing service skyline based on QoS",
 booktitle="9th IEEE International Conference on Web Services",
 year="2011",
 pages="540-547",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, Top-k Web Service Compositions using Fuzzy Dominance Relationship, 8th IEEE International Conference on Services Computing (CSC 2011), 2011, pp. 140-151

@INPROCEEDINGS{18933,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel",
 title="Top-k Web Service Compositions using Fuzzy Dominance Relationship",
 booktitle="8th IEEE International Conference on Services Computing",
 year="2011",
 pages=" 140-151",
}

Olivier PIVERT, Allel HADJALI, Grégory Smits, On database queries involving inferred fuzzy predicates, 19th International Symposium on Methodologies for Intelligent Systems (ISMIS 2011), 2011, pp. 592-601

@INPROCEEDINGS{18941,
 author="Pivert Olivier and Hadjali Allel and Smits Grégory",
 title="On database queries involving inferred fuzzy predicates",
 booktitle="19th International Symposium on Methodologies for Intelligent Systems",
 year="2011",
 pages="592-601",
}

Karim Benouaret, Djamal Benslimane, Allel HADJALI, Top-k web services compositions: A fuzzy-set-based approach, 26th ACM – Symp. on Applied Computing (SAC), Database Theory, Technology, and Applications Track (SAC11), 2011, pp. 1038-1043

@INPROCEEDINGS{18949,
 author="Benouaret Karim and Benslimane Djamal and Hadjali Allel",
 title="Top-k web services compositions: A fuzzy-set-based approach",
 booktitle="26th ACM – Symp. on Applied Computing (SAC), Database Theory, Technology, and Applications Track",
 year="2011",
 pages="1038-1043",
}

Katia ABBACI, Allel HADJALI, Ludovic LIETARD, Daniel ROCACHER, A Similarity Skyline Approach for Handling Graph Queries - A Preliminary Report, 2nd International Workshop on Graph Data Management Techniques and Applications (GDM'11), in Conjunction with The IEEE International Conference on Data Engineering (ICDE) (GDM11), 2011, pp. 112-117

@INPROCEEDINGS{18957,
 author="Abbaci Katia and Hadjali Allel and Lietard Ludovic and Rocacher Daniel",
 title="A Similarity Skyline Approach for Handling Graph Queries - A Preliminary Report",
 booktitle="2nd International Workshop on Graph Data Management Techniques and Applications (GDM'11), in Conjunction with The IEEE International Conference on Data Engineering (ICDE)",
 year="2011",
 pages="112-117",
}

Allel HADJALI, Olivier PIVERT, Henri PRADE, On different types of fuzzy skylines, 19th International Symposium on Methodologies for Intelligent Systems (ISMIS 2011), 2011, pp. 581-591

@INPROCEEDINGS{18964,
 author="Hadjali Allel and Pivert Olivier and Prade Henri",
 title="On different types of fuzzy skylines",
 booktitle="19th International Symposium on Methodologies for Intelligent Systems",
 year="2011",
 pages="581-591",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, On Possibilistic Skyline Queries, 9th International Conference on Flexible Query Answering Systems (FQAS2011), Vol 7022, edited by Springer, 2011, pp. 412-423

@INPROCEEDINGS{18850,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier",
 title="On Possibilistic Skyline Queries",
 booktitle="9th International Conference on Flexible Query Answering Systems",
 year="2011",
 editor="Springer",
 pages="412-423",
}

Katia ABBACI, Fernando LEMOS, Allel HADJALI, Daniela GRIGORI, Ludovic LIETARD, Daniel ROCACHER, Mokrane BOUZEGHOUB, A Cooperative Answering Approach to Fuzzy Preferences Queries in Service Discovery, 9th International Conference on Flexible Query Answering Systems (FQAS2011), Vol 7022, edited by Springer, 2011, pp. 318-329

@INPROCEEDINGS{18861,
 author="Abbaci Katia and Lemos  Fernando and Hadjali Allel and Grigori Daniela  and Lietard Ludovic and Rocacher Daniel and Bouzeghoub Mokrane ",
 title="A Cooperative Answering Approach to Fuzzy Preferences Queries in Service Discovery",
 booktitle="9th International Conference on Flexible Query Answering Systems",
 year="2011",
 editor="Springer",
 pages="318-329",
}

Katia ABBACI, Fernando LEMOS, Allel HADJALI, Daniela GRIGORI, Ludovic LIETARD, Daniel ROCACHER, Mokrane BOUZEGHOUB, Selecting and Ranking Business Process with Preferences: An Approach Based on Fuzzy Set, 19th International Conference on Cooperative Information Systems (CoopIS'11), Crete, Greece (COOPIS2011), 2011, pp. 38-55

@INPROCEEDINGS{18873,
 author="Abbaci Katia and Lemos  Fernando and Hadjali Allel and Grigori Daniela  and Lietard Ludovic and Rocacher Daniel and Bouzeghoub Mokrane ",
 title="Selecting and Ranking Business Process with Preferences: An Approach Based on Fuzzy Set",
 booktitle="19th International Conference on Cooperative Information Systems (CoopIS'11), Crete, Greece",
 year="2011",
 pages="38-55",
}

Katia ABBACI, Fernando LEMOS, Allel HADJALI, Daniela GRIGORI, Ludovic LIETARD, Daniel ROCACHER, Mokrane BOUZEGHOUB, An Approach Based on Fuzzy Sets to Handle Preferences in Service Retrieval, 13th IEEE Conference on Commerce and Enterprise Computing (CEC'11), Luxembourg (CEC11), 2011, pp. 213-218

@INPROCEEDINGS{18888,
 author="Abbaci Katia and Lemos  Fernando and Hadjali Allel and Grigori Daniela  and Lietard Ludovic and Rocacher Daniel and Bouzeghoub Mokrane ",
 title="An Approach Based on Fuzzy Sets to Handle Preferences in Service Retrieval",
 booktitle="13th IEEE Conference on Commerce and Enterprise Computing (CEC'11), Luxembourg",
 year="2011",
 pages="213-218",
}

Allel HADJALI, Patrick BOSC, Olivier PIVERT, Grégory Smits, Une approche fondée sur la corrélation entre prédicats pour le traitement des réponses pléthoriques, Actes de la 10éme Conférence Internationale Francophone sur l'Extraction et la Gestion des Connaissances (EGC 2010), 2010, pp. 273-284

@INPROCEEDINGS{19644,
 author="Hadjali Allel and Bosc Patrick and Pivert Olivier and Smits Grégory",
 title="Une approche fondée sur la corrélation entre prédicats pour le traitement des réponses pléthoriques",
 booktitle="Actes de la 10éme Conférence Internationale Francophone sur l'Extraction et la Gestion des Connaissances",
 year="2010",
 pages="273-284",
 month="jan",
}

Olivier PIVERT, Allel HADJALI, Grégory Smits, Estimating the relevance of a data source using a fuzzy-cardinality-based summary, 6th IEEE International Conference on Intelligent Systems (IEEEIS10), 2010, pp. 96-101

@INPROCEEDINGS{18990,
 author="Pivert Olivier and Hadjali Allel and Smits Grégory",
 title="Estimating the relevance of a data source using a fuzzy-cardinality-based summary",
 booktitle="6th IEEE International Conference on Intelligent Systems",
 year="2010",
 pages="96-101",
}

Allel HADJALI, Olivier PIVERT, Henri PRADE, Possibilistic contextual skylines with incomplete preferences, 2nd International Conference on Soft Computing and Pattern Recognition (SoCPaR’10), Cergy-Pontoise, France (SocPar10), 2010, pp. 57-62

@INPROCEEDINGS{18973,
 author="Hadjali Allel and Pivert Olivier and Prade Henri",
 title="Possibilistic contextual skylines with incomplete preferences",
 booktitle="2nd International Conference on Soft Computing and Pattern Recognition (SoCPaR’10), Cergy-Pontoise, France",
 year="2010",
 pages="57-62",
 month="oct",
}

Allel HADJALI, Amine MOKHTARI, Olivier PIVERT, A fuzzy-rule-based approach to contextual preference queries, 14th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU10), edited by E. Hullermeier, R. Kruse, and F. Hoffmann, 2010, pp. 532–541

@INPROCEEDINGS{19016,
 author="Hadjali Allel and Mokhtari Amine and Pivert Olivier",
 title="A fuzzy-rule-based approach to contextual preference queries",
 booktitle="14th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems",
 year="2010",
 editor="E. Hullermeier, R. Kruse, and F. Hoffmann",
 pages="532–541",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, Grégory Smits, On the use of fuzzy cardinalities for reducing plethoric answers to fuzzy queries, 4th International Conference on Scalability and Uncertainty Management (SUM'2010), Toulouse, France (SUM10), 2010, pp. 98-111

@INPROCEEDINGS{18981,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier and Smits Grégory",
 title="On the use of fuzzy cardinalities for reducing plethoric answers to fuzzy queries",
 booktitle="4th International Conference on Scalability and Uncertainty Management (SUM'2010),  Toulouse, France",
 year="2010",
 pages="98-111",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, Grégory Smits, Trimming plethoric answers to fuzzy queries: an approach based on predicate correlation, 14th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU10), edited by E. Hullermeier, R. Kruse, and F. Hoffmann, 2010, pp. 595–604

@INPROCEEDINGS{19009,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier and Smits Grégory",
 title="Trimming plethoric answers to fuzzy queries: an approach based on predicate correlation",
 booktitle="14th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems",
 year="2010",
 editor="E. Hullermeier, R. Kruse, and F. Hoffmann",
 pages="595–604",
}

Olivier PIVERT, Hélène Jaudoin, Carmen BRANDO, Allel HADJALI, A method based on query caching and predicate substitution for the treatment of failing database queries, 18th International Conference on Case-Based-Reasoning (ICCBR'10), LNAI 6176, Italy (ICCBR10), 2010, pp. 436-450

@INPROCEEDINGS{19000,
 author="Pivert Olivier and Jaudoin Hélène and Brando Carmen and Hadjali Allel",
 title="A method based on query caching and predicate substitution for the treatment of failing database queries",
 booktitle="18th International Conference on Case-Based-Reasoning (ICCBR'10), LNAI 6176,  Italy",
 year="2010",
 pages="436-450",
}

Patrick BOSC, Carmen BRANDO, Allel HADJALI, Hélène Jaudoin, Olivier PIVERT, Semantic proximity between queries and the empty answer problem, The Joint IFSA World Congress (IFSA’09) and the 6th Conference of the European Society of Fuzzy Systems and Technology (EUSFLAT’09) (IFSA 2009), 2009, pp. 259-264

@INPROCEEDINGS{19610,
 author="Bosc Patrick and Brando Carmen and Hadjali Allel and Jaudoin Hélène and Pivert Olivier",
 title="Semantic proximity between queries and the empty answer problem",
 booktitle="The Joint IFSA World Congress (IFSA’09) and the 6th Conference of the European Society of Fuzzy Systems and Technology (EUSFLAT’09)",
 year="2009",
 pages="259-264",
 month="jul",
}

Amine MOKHTARI, Allel HADJALI, Olivier PIVERT, Towards a route planner capable of dealing with complex bipolar preferences, The International Scientific Conference on Mobility and Transport (mobil.TUM 2009) (mobil-TUM 2009), 2009

@INPROCEEDINGS{19636,
 author="Mokhtari Amine and Hadjali Allel and Pivert Olivier",
 title="Towards a route planner capable of dealing with complex bipolar preferences",
 booktitle="The International Scientific Conference on Mobility and Transport (mobil.TUM 2009)",
 year="2009",
 month="may",
}

Amine MOKHTARI, Allel HADJALI, Olivier PIVERT, Towards a route planner capable of dealing with complex bipolar preferences, The 12th IEEE Conference on Intelligent Transportation Systems (IEEE ITSC’09) (IEEE-ITSC 2009), 2009, pp. 556-561

@INPROCEEDINGS{19626,
 author="Mokhtari Amine and Hadjali Allel and Pivert Olivier",
 title="Towards a route planner capable of dealing with complex bipolar preferences",
 booktitle="The 12th IEEE Conference on Intelligent Transportation Systems (IEEE ITSC’09)",
 year="2009",
 pages="556-561",
 month="oct",
}

Amine MOKHTARI, Allel HADJALI, Olivier PIVERT, Integrating complex user preferences into a route planner: A fuzzy-set-based approach, The Joint IFSA World Congress (IFSA’09) and the 6th Conference of the European Society of Fuzzy Systems and Technology (EUSFLAT’09) (IFSA 2009), 2009, pp. 501-506

@INPROCEEDINGS{19618,
 author="Mokhtari Amine and Hadjali Allel and Pivert Olivier",
 title="Integrating complex user preferences into a route planner: A fuzzy-set-based approach",
 booktitle="The Joint IFSA World Congress (IFSA’09) and the 6th Conference of the European Society of Fuzzy Systems and Technology (EUSFLAT’09)",
 year="2009",
 pages="501-506",
 month="jul",
}

Conférences Nationales

(21)

Ibrahim DELLAL, Stéphane JEAN, Allel HADJALI, Brice CHARDIN, Mickael BARON, Traitement coopératif des requêtes RDF dans le contexte des bases de connaissances incertaines, INFormatique des ORganisations et Systèmes d’Information et de Décision (INFORSID 2017), 2017, pp. 277-292

@INPROCEEDINGS{26457,
 author="Dellal Ibrahim and Jean Stéphane and Hadjali Allel and Chardin Brice and Baron Mickael",
 title="Traitement coopératif des requêtes RDF dans le contexte des bases de connaissances incertaines",
 booktitle="INFormatique des ORganisations et Systèmes d’Information et de Décision",
 year="2017",
 pages="277-292",
 month="may",
}

Aymen GAMMOUDI, Allel HADJALI, Boutheina Ben Yaghlane, Sur une Sémantique Tolérante des Relations Temporelles, 25ème Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2016), 2016

@INPROCEEDINGS{19030,
 author="Gammoudi Aymen and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Sur une Sémantique Tolérante des Relations Temporelles",
 booktitle="25ème Rencontres Francophones sur la Logique Floue et ses Applications",
 year="2016",
 month="nov",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Mickael BARON, RDF Query Relaxation Strategies Based on Failure Causes, 32th French Conference On Advanced Databases (BDA 2016), 2016

@INPROCEEDINGS{22764,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel and Baron Mickael",
 title="RDF Query Relaxation Strategies Based on Failure Causes",
 booktitle="32th French Conference On Advanced Databases",
 year="2016",
 month="oct",
}

Djamal BELKASMI, Allel HADJALI, Hamid Azzoune, Elargissement du Skyline: Une approche fondée sur une relation de proximité, 25ème Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2016), 2016

@INPROCEEDINGS{25116,
 author="Belkasmi Djamal and Hadjali Allel and Azzoune Hamid",
 title="Elargissement du Skyline: Une approche fondée sur une relation de proximité",
 booktitle="25ème Rencontres Francophones sur la Logique Floue et ses Applications",
 year="2016",
 month="nov",
}

Saida ELMI, Allel HADJALI, Mohamed Anis BACH TOBJI, Boutheina Ben Yaghlane, Maintenance du Skyline sur des données évidentielles, 25ème Rencontres Francophones sur la Logique Floue et ses Applications (LFA 2016), 2016

@INPROCEEDINGS{23896,
 author="Elmi Saida and Hadjali Allel and Bach Tobji Mohamed Anis and Ben Yaghlane Boutheina",
 title="Maintenance du Skyline sur des données évidentielles",
 booktitle="25ème Rencontres Francophones sur la Logique Floue et ses Applications",
 year="2016",
 month="nov",
}

Nessrine EL HADJ SALEM, Allel HADJALI, Boutheina Ben Yaghlane, Aymen GAMMOUDI, Une Approche Crédibiliste pour la Gestion de l’Incertitude Temporelle, 24th French Conference on Fuzzy Logic and its Applications (LFA 2015), 2015, pp. 243-249

@INPROCEEDINGS{18842,
 author="El Hadj Salem Nessrine and Hadjali Allel and Ben Yaghlane Boutheina and Gammoudi Aymen",
 title="Une Approche Crédibiliste pour la Gestion de l’Incertitude Temporelle",
 booktitle="24th French Conference on Fuzzy Logic and its Applications",
 year="2015",
 pages="243-249",
 month="nov",
}

Aymen GAMMOUDI, Allel HADJALI, Boutheina Ben Yaghlane, Sur une Sémantique Tolérante des Relations Temporelles, , 24th French Conference on Fuzzy Logic and its Applications (LFA 2015), 2015, pp. 250-257

@INPROCEEDINGS{19208,
 author="Gammoudi Aymen and Hadjali Allel and Ben Yaghlane Boutheina",
 title="Sur une Sémantique Tolérante des Relations Temporelles, ",
 booktitle="24th French Conference on Fuzzy Logic and its Applications",
 year="2015",
 pages="250-257",
 month="nov",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Mickael BARON, Cooperative Techniques for SPARQL Query Relaxation in RDF Databases, the 31st French Conference on Advanced Databases (BDA 2015), 2015

@INPROCEEDINGS{19599,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel and Baron Mickael",
 title="Cooperative Techniques for SPARQL Query Relaxation in RDF Databases",
 booktitle=" the 31st French Conference on Advanced Databases",
 year="2015",
 month="sep",
}

Ludovic LIETARD, Daniel ROCACHER, Allel HADJALI, Les Conditions Multipolaires Floues, National Conference on Fuzzy Logic and its Applications (LFA 2014), 2014

@INPROCEEDINGS{15746,
 author="Lietard Ludovic and Rocacher Daniel and Hadjali Allel",
 title="Les Conditions Multipolaires Floues",
 booktitle="National Conference on Fuzzy Logic and its Applications",
 year="2014",
 month="oct",
}

Yazid HARIZI, Allel HADJALI, Hamid Azzoune, SYMPAS: A Database System for Managing Symbolic Preferences, National Conference on Fuzzy Logic and its Applications (LFA 2013), 2013

@INPROCEEDINGS{13125,
 author="Harizi Yazid and Hadjali Allel and Azzoune Hamid",
 title="SYMPAS: A Database System for Managing Symbolic Preferences",
 booktitle="National Conference on Fuzzy Logic and its Applications",
 year="2013",
}

Abed BOUALEM, Allel HADJALI, On the use of diversity for handling the plethoric answers problem, National Conference of Optimization and Information Systems (COSI 2013), 2013

@INPROCEEDINGS{13114,
 author="Boualem Abed and Hadjali Allel",
 title="On the use of diversity for handling the plethoric answers problem",
 booktitle="National Conference of Optimization and Information Systems",
 year="2013",
}

Olivier PIVERT, Grégory Smits, Allel HADJALI, Hélène Jaudoin, Détection efficace de conflit dans les requêtes floues, National Conference on Fuzzy Logic and its Applications (LFA 2012), 2012

@INPROCEEDINGS{16829,
 author="Pivert Olivier and Smits Grégory and Hadjali Allel and Jaudoin Hélène",
 title="Détection efficace de conflit dans les requêtes floues",
 booktitle="National Conference on Fuzzy Logic and its Applications",
 year="2012",
}

Katia ABBACI, Allel HADJALI, Ludovic LIETARD, Daniel ROCACHER, Un opérateur skyline flexible pour l''interrogation de bases de données : Premières explorations, National Conference on Fuzzy Logic and its Applications (LFA 2012), 2012

@INPROCEEDINGS{16842,
 author="Abbaci Katia and Hadjali Allel and Lietard Ludovic and Rocacher Daniel",
 title="Un opérateur skyline flexible pour l''interrogation de bases de données : Premières explorations",
 booktitle="National Conference on Fuzzy Logic and its Applications",
 year="2012",
}

Samia BOULKRINAT, Allel HADJALI, Aicha MOKHTARI, Vers un système de recommendation basé sur une aggrégation d epréférences floues, National Conference on Fuzzy Logic and its Applications (LFA 2012), 2012

@INPROCEEDINGS{16836,
 author="Boulkrinat Samia and Hadjali Allel and Mokhtari Aicha",
 title="Vers un système de recommendation basé sur une aggrégation d epréférences floues",
 booktitle="National Conference on Fuzzy Logic and its Applications",
 year="2012",
}

Katia ABBACI, Allel HADJALI, Ludovic LIETARD, Daniel ROCACHER, Une approche skyline pour l'interrogation de bases de données de graphes, Actes du 2ème Atelier Graphes et Appariement d'Objets Complexes (GAOC11), 2011

@INPROCEEDINGS{19552,
 author="Abbaci Katia and Hadjali Allel and Lietard Ludovic and Rocacher Daniel",
 title="Une approche skyline pour l'interrogation de bases de données de graphes",
 booktitle="Actes du 2ème Atelier Graphes et Appariement d'Objets Complexes",
 year="2011",
 month="jan",
}

Katia ABBACI, Fernando LEMOS, Allel HADJALI, Daniela GRIGORI, Ludovic LIETARD, Daniel ROCACHER, Mokrane BOUZEGHOUB, A fuzzy-set approach to handle preferences in service retrieval, 27èmes journées de Bases de Données Avancées (BDA 2011), 2011

@INPROCEEDINGS{19508,
 author="Abbaci Katia and Lemos  Fernando and Hadjali Allel and Grigori Daniela  and Lietard Ludovic and Rocacher Daniel and Bouzeghoub Mokrane ",
 title="A fuzzy-set approach to handle preferences in service retrieval",
 booktitle="27èmes journées de Bases de Données Avancées",
 year="2011",
 month="oct",
}

Abdelkader ALEM, Allel HADJALI, Evaluation de requêtes flexibles dans un contexte non-centralisé : Une approche basé sur les résumés distribués, Actes du 7ème Colloque sur l'Optimisation et des Systèmes d'Information (COSI10), 2010

@INPROCEEDINGS{19592,
 author="Alem Abdelkader  and Hadjali Allel",
 title="Evaluation de requêtes flexibles dans un contexte non-centralisé : Une approche basé sur les résumés distribués",
 booktitle="Actes du 7ème Colloque sur l'Optimisation et des Systèmes d'Information",
 year="2010",
 month="apr",
}

Lilla OUDJOUDI, Allel HADJALI, Supporting failing database queries in a flexible context: A data-driven approach, Actes du 7ème Colloque sur l'Optimisation et des Systèmes d'Information (COSI10), 2010

@INPROCEEDINGS{19583,
 author="Oudjoudi Lilla and Hadjali Allel",
 title="Supporting failing database queries in a flexible context: A data-driven approach",
 booktitle="Actes du 7ème Colloque sur l'Optimisation et des Systèmes d'Information",
 year="2010",
 month="apr",
}

Allel HADJALI, Aicha AGGOUNE, Abdelouahab MOUSSAOUI, Measuring semantic proximity between flexible queries: A distance-based approach, Actes du 7ème Colloque sur l'Optimisation et des Systèmes d'Information (COSI10), 2010

@INPROCEEDINGS{19565,
 author="Hadjali Allel and Aggoune Aicha and Moussaoui Abdelouahab",
 title="Measuring semantic proximity between flexible queries: A distance-based approach",
 booktitle="Actes du 7ème Colloque sur l'Optimisation et des Systèmes d'Information",
 year="2010",
 month="apr",
}

Katia ABBACI, Allel HADJALI, Ludovic LIETARD, Daniel ROCACHER, Interrogation de bases de données de graphes : Une approche basée sur un skyline par similarité, Actes de la 1ere Conférence Maghrébine sur l'Extraction et la Gestion des Connaissances (EGC-M 10), 2010

@INPROCEEDINGS{19573,
 author="Abbaci Katia and Hadjali Allel and Lietard Ludovic and Rocacher Daniel",
 title="Interrogation de bases de données de graphes : Une approche basée sur un skyline par similarité",
 booktitle="Actes de la 1ere Conférence Maghrébine sur l'Extraction et la Gestion des Connaissances ",
 year="2010",
 month="apr",
}

Patrick BOSC, Allel HADJALI, Olivier PIVERT, Grégory Smits, CORTEX: CORrelaTion-based query Expansion, 26èmes journées Bases de Données Avancées (BDA 2010), 2010

@INPROCEEDINGS{19520,
 author="Bosc Patrick and Hadjali Allel and Pivert Olivier and Smits Grégory",
 title="CORTEX: CORrelaTion-based query Expansion",
 booktitle="26èmes journées Bases de Données Avancées",
 year="2010",
 month="oct",
}

Rapports de Recherche

(4)

Djamal BELKASMI, Allel HADJALI, Hamid Azzoune, Relaxation des Requêtes Skyline: Une Approche Centrée Utilisateur, (103)

@TECHREPORT{20408,
 author="Belkasmi Djamal and Hadjali Allel and Azzoune Hamid",
 title="Relaxation des Requêtes Skyline: Une Approche Centrée Utilisateur",
 year="2015",
 number="103",
 month="2015",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Mickael BARON, Cooperative Techniques for SPARQL Query Relaxation in RDF Databases, (2.0)

@TECHREPORT{21356,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel and Baron Mickael",
 title="Cooperative Techniques for SPARQL Query Relaxation in RDF Databases",
 year="2015",
 number="2.0",
 month="2015",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Endowing Semantic Query Languages with Advanced Relaxation Capabilities, (1.0)

@TECHREPORT{21361,
 author="Fokou Géraud and Jean Stéphane and Hadjali Allel",
 title="Endowing Semantic Query Languages with Advanced Relaxation Capabilities",
 year="2014",
 number="1.0",
 month="2014",
}

Zahira CHOUIREF, Karim Benouaret, Allel HADJALI, Abdelkader Belkhir, Multi Matchmaking Approach for Semantic Web Services Selection based on Fuzzy Inference, (17032014)

@TECHREPORT{16420,
 author="Chouiref Zahira and Benouaret Karim and Hadjali Allel and Belkhir Abdelkader",
 title="Multi Matchmaking Approach for Semantic Web Services Selection based on Fuzzy Inference",
 year="2014",
 number="17032014",
 month="2014",
}

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