Page Professionnelle de Stéphane JEAN

Stéphane JEAN

Associate Professor

email: jean@ensma.fr
tel: +33 (0)549498073
school: SFA - University of Poitiers
address: ISAE-ENSMA, 1 avenue Clément Ader BP 40109, 86961 Chasseneuil - France
team: Data Engineering

Lecture Activity

I teach in the Computer Science Department of the Science Faculty of the University of Poitiers. I'm director of the 3 years University degree. I teach mainly databases courses to Bachelors and Masters degrees:

Data Engineering
Datawarehouses and Datamining
Advanced Topics in Database Systems
Databases and Web

Research Activity

Research topics

The aim of my research is to improve the management of data especially in the engineering domains targeted by the ENSMA school (aeronautic, transport, mechanic and energy). In particular, I study the interest of using knowledge models called ontologies (or dictionnaries in engineering domains) which give a formal and consensual description of the concepts of a domain. Most of my work relies on normalized ontologies defined with the PLIB ontology formalism (ISO 13584) which is specialized in the description of engineering data. However as ontology are widely used in the Semantic Web context, I'm also interested in formalisms and languages developped in this context (e.g., RDF, RDF-Schema, OWL or SPARQL).

Contributions

During my phD thesis, I have developped a language called OntoQL designed for managing data described by ontologies held in specialized databases. The particularities of this language compared to Semantic Web query language (especially SPARQL) are: (1) the OntoQL language is independent of a given ontology model. Indeed, it is based on a core ontology models containing the constructors shared by different ontology models and this core ontology model can be extended by the OntoQL language itself, (2) the OntoQL language exploits the linguistic information that may be associated to a conceptual ontology allowing users to express queries in different natural languages and (3) the OntoQL language is compatible with the SQL language. This language and the associated softwares (available at LIAS forge) have been and are used in several thesis, academic projects and industrial applications.
Since my phD thesis I continue to work on semantic databases and associated query languages following two directions: (1) extension of the functionalities and domains of application of these languages and (2) optimization of the associated data management operations when they are done on one or several databases.

PhD students

Ibrahim dellal, Cooperative techniques for uncertain knowledge bases

Previous PhD students

Géraud Fokou, a framework for relaxing SPARQL queries, 2016
Bery Mbaiossoum Leouro, Physical design of ontology based databases, 2014
Ilyès Boukhari, Semantic-based Integration and exploitation of requirements, 2014
Youness Bazhar, Extension of metamodélisation systems with behavioral semantics, 2013

Publications

(75)

by type

by year

Books and Book Chapters

(3)

Yamine AIT-AMEUR, Mickael BARON, Nabil BELAID, Stéphane JEAN, Laura Mastella, Ontology Integration and Management within Data Intensive Engineering Systems, In Shared Earth Modeling: Knowledge Driven Solutions for Building and Managing Subsurface 3D Geological models (Shared Earth Modeling), chapt. 13, 2013, pp. 281-305

@INBOOK{10772,
 author="Ait-Ameur Yamine and Baron Mickael and Belaid Nabil and Jean Stéphane and Mastella Laura",
 title="Ontology Integration and Management within Data Intensive Engineering Systems",
 year="2013",
}

Stéphane JEAN, Yamine AIT-AMEUR, Guy PIERRA, Ontology Query Languages for Ontology-Based Databases: a Survey, Ontology Query Languages for Ontology-Based Databases: a Survey, 2009

@BOOK{8386,
 author="Jean Stéphane and Ait-Ameur Yamine and Pierra Guy",
 title="Ontology Query Languages for Ontology-Based Databases: a Survey",
 year="2009",
}

Stéphane JEAN, Guy PIERRA, Yamine AIT-AMEUR, Domain Ontologies: a Database-Oriented Analysis, Domain Ontologies: a Database-Oriented Analysis, 1, Lecture Notes in Business Information Processing, August, 2007

@BOOK{9181,
 author="Jean Stéphane and Pierra Guy and Ait-Ameur Yamine",
 title="Domain Ontologies: a Database-Oriented Analysis",
 publisher="Springer-Verlag Berlin Heidelberg",
 year="2007",
 volume="1",
 series="Lecture Notes in Business Information Processing",
}

International Journals

(7)

Ilyes BOUKHARI, Stéphane JEAN, Idir AIT-SADOUNE, Ladjel BELLATRECHE, The role of user requirements in data repository design, International Journal on Software Tools for Technology Transfer (STTT), 2016

@ARTICLE{23502,
 author="Boukhari Ilyes and Jean Stéphane and Ait-Sadoune Idir and Bellatreche Ladjel",
 title="The role of user requirements in data repository design",
 year="2016",
 journal="International Journal on Software Tools for Technology Transfer",
}

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",
}

Stéphane JEAN, Yamine AIT-AMEUR, Guy PIERRA, OntoQL: an Alternative to Semantic Web Query Languages, International Journal of Semantic Computing (IJSC), 2015, pp. 105-137

@ARTICLE{18440,
 author="Jean Stéphane and Ait-Ameur Yamine and Pierra Guy",
 title="OntoQL: an Alternative to Semantic Web Query Languages",
 year="2015",
 pages="105-137",
 journal="International Journal of Semantic Computing",
}

Yamine AIT-AMEUR, Mickael BARON, Ladjel BELLATRECHE, Stéphane JEAN, Eric SARDET, Ontologies in engineering: The OntoDB/OntoQL platform, Soft Computing (SC), 2015

@ARTICLE{17794,
 author="Ait-Ameur Yamine and Baron Mickael and Bellatreche Ladjel and Jean Stéphane and Sardet Eric",
 title="Ontologies in engineering: The OntoDB/OntoQL platform",
 year="2015",
 journal="Soft Computing",
}

Selma KHOURI, Ilyes BOUKHARI, Ladjel BELLATRECHE, Stéphane JEAN, Eric SARDET, Mickael BARON, Ontology-based structured web data warehouses for sustainable interoperability: requirement modeling, design methodology and tool, Computers in Industry (CII 2012), 2012, pp. 799-812

@ARTICLE{9939,
 author="Khouri Selma and Boukhari Ilyes and Bellatreche Ladjel and Jean Stéphane and Sardet Eric and Baron Mickael",
 title=" Ontology-based structured web data warehouses for sustainable interoperability: requirement modeling, design methodology and tool",
 year="2012",
 pages="799-812",
 journal="Computers in Industry",
}

Abdelghani Bakhtouchi, Ladjel BELLATRECHE, Stéphane JEAN, Yamine AIT-AMEUR, MIRSOFT: Mediator for Integrating and Reconciling Sources using Ontological FuncTional Dependencies, International Journal Web and Grid Services (Factor Impact = 0.978) (IJWGS 2012), vol. 8, n. 1, 2012

@ARTICLE{9631,
 author="Bakhtouchi Abdelghani and Bellatreche Ladjel and Jean Stéphane and Ait-Ameur Yamine",
 title="MIRSOFT: Mediator for Integrating and Reconciling Sources using Ontological FuncTional Dependencies",
 year="2012",
 volume="2012",
 number="1",
 journal="International Journal  Web and Grid Services (Factor Impact = 0.978)",
}

Nabil BELAID, Stéphane JEAN, Yamine AIT-AMEUR, Jean-François Rainaud, An Ontology and Indexation Based Management of Services and Workflows: Application to Geological Modeling, International Journal of Electronic Business Management (IJEBM 2011), vol. 9, n. 4, 2011, pp. 296-309

@ARTICLE{9654,
 author="Belaid Nabil and Jean Stéphane and Ait-Ameur Yamine and Rainaud Jean-François",
 title="An Ontology and Indexation Based Management of Services and Workflows: Application to Geological Modeling",
 year="2011",
 volume="2011",
 number="4",
 pages="296-309",
 journal="International Journal of Electronic Business Management",
}

National Journals

(2)

Bery MBAIOSSOUM, Ladjel BELLATRECHE, Stéphane JEAN, Mickael BARON, Comparaison et Evaluation des Systèmes de Gestion de Base de Données Sémantiques, Ingénierie des Systèmes d'Information (ISI - 2013), 2013

@ARTICLE{10779,
 author="Mbaiossoum Bery and Bellatreche Ladjel and Jean Stéphane and Baron Mickael",
 title="Comparaison et Evaluation des Systèmes de Gestion de Base de Données Sémantiques",
 year="2013",
 journal="Ingénierie des Systèmes d'Information",
}

Stéphane JEAN, Francisca Losavio, Alfredo Matteo, Nicole Levy, Prise en compte des standards de qualité et des préférences utilisateurs pour la modélisation des propriétés non fonctionnelles dans OWL-S, Technique et Science Informatiques (TSI 2012), vol. 31, 2012

@ARTICLE{9661,
 author="Jean Stéphane and Losavio Francisca and Matteo Alfredo and Levy Nicole",
 title="Prise en compte des standards de qualité et des préférences utilisateurs pour la modélisation des propriétés non fonctionnelles dans OWL-S",
 year="2012",
 volume="2012",
 journal="Technique et Science Informatiques",
}

International Conferences

(43)

Chourouk BELHEOUANE, Stéphane JEAN, Allel HADJALI, Hamid Azzoune, Handling failing queries over uncertain databases, FUZZ-IEEE (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="FUZZ-IEEE",
 year="2017",
 pages="1-6",
 month="jul",
}

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",
}

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",
}

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",
}

Selma BOUARAR, Stéphane JEAN, Norbert Siegmund, SPL Driven Approach for Variability in Database Design, The 5th International Conference on Model & Data Engineering (MEDI), 2015

@INPROCEEDINGS{20116,
 author="Bouarar Selma and Jean Stéphane and Siegmund Norbert ",
 title="SPL Driven Approach for Variability in Database Design",
 booktitle="The 5th International Conference on Model & Data Engineering",
 year="2015",
 month="sep",
}

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",
}

Bery MBAIOSSOUM, Ladjel BELLATRECHE, Stéphane JEAN, Materialized View Selection Considering the Diversity of Semantic Web Databases, Proceedings of the 18th East-European Conference on Advances in Databases and Information Systems (ADBIS 2014), 2014

@INPROCEEDINGS{15798,
 author="Mbaiossoum Bery and Bellatreche Ladjel and Jean Stéphane",
 title="Materialized View Selection Considering the Diversity of Semantic Web Databases",
 booktitle="Proceedings of the 18th East-European Conference on Advances in Databases and Information Systems",
 year="2014",
 month="sep",
}

Kevin ROYER, Ladjel BELLATRECHE, Stéphane JEAN, One Semantic Data Warehouse Fits both Electrical Vehicle Data and their Business Processes, Proceedings of the 17th International IEEE Conference on Intelligent Transportation Systems (ITSC 2014), 2014

@INPROCEEDINGS{15877,
 author="Royer Kevin and Bellatreche Ladjel and Jean Stéphane",
 title="One Semantic Data Warehouse Fits both Electrical Vehicle Data and their Business Processes",
 booktitle="Proceedings of the 17th International IEEE Conference on Intelligent Transportation Systems",
 year="2014",
 month="oct",
}

Géraud FOKOU, Stéphane JEAN, Allel HADJALI, Endowing Semantic Query Languages with Advanced Relaxation Capabilities, Proceedings of the 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="Proceedings of the 21st International Symposium on Methodologies for Intelligent Systems",
 year="2014",
 month="jun",
}

Kevin ROYER, Ladjel BELLATRECHE, Stéphane JEAN, Combining domain and business ontologies in a modular construction method: EDF study case, Proceedings of the 38th International Convention, MiproBIS - Business Intelligence Systems (MIPRO 2014), 2014

@INPROCEEDINGS{15830,
 author="Royer Kevin and Bellatreche Ladjel and Jean Stéphane",
 title="Combining domain and business ontologies in a modular construction method: EDF study case",
 booktitle="Proceedings of the 38th International Convention,  MiproBIS - Business Intelligence Systems",
 year="2014",
 month="may",
}

Stéphane JEAN, Idir AIT-SADOUNE, Ladjel BELLATRECHE, Ilyes BOUKHARI, On Using Requirements Throughout the Life Cycle of Data Repository, Proceedings of the 25th International Conference on Database and Expert Systems Applications (DEXA 2014), 2014

@INPROCEEDINGS{15822,
 author="Jean Stéphane and Ait-Sadoune Idir and Bellatreche Ladjel and Boukhari Ilyes",
 title="On Using Requirements Throughout the Life Cycle of Data Repository",
 booktitle="Proceedings of the 25th International Conference on Database and Expert Systems Applications",
 year="2014",
 month="sep",
}

Selma BOUARAR, Ladjel BELLATRECHE, Stéphane JEAN, Mickael BARON, Do Rule-based Approaches Still Make Sense in Logical Data Warehouse Design?, Proceedings of the 18th East-European Conference on Advances in Databases and Information Systems (ADBIS 2014), 2014

@INPROCEEDINGS{15812,
 author="Bouarar Selma and Bellatreche Ladjel and Jean Stéphane and Baron Mickael",
 title="Do Rule-based Approaches Still Make Sense in Logical Data Warehouse Design?",
 booktitle="Proceedings of the 18th East-European Conference on Advances in Databases and Information Systems",
 year="2014",
 month="sep",
}

Selma KHOURI, Ladjel BELLATRECHE, Stéphane JEAN, Yamine AIT-AMEUR, Requirements Driven Data Warehouse Design: We Can Go Further, Leveraging Applications of Formal Methods, Verification and Validation.Specialized Techniques and Applications - 6th International Symposium,ISoLA 2014, Imperial, Corfu, Greece, (ISOLA 2014), 2014, pp. 588--603

@INPROCEEDINGS{17359,
 author="Khouri Selma and Bellatreche Ladjel and Jean Stéphane and Ait-Ameur Yamine",
 title="Requirements Driven Data Warehouse Design: We Can Go Further",
 booktitle="Leveraging Applications of Formal Methods, Verification and Validation.Specialized Techniques and Applications - 6th International Symposium,ISoLA 2014, Imperial, Corfu, Greece, ",
 year="2014",
 pages="588--603",
 month="oct",
}

Bery MBAIOSSOUM, Ladjel BELLATRECHE, Stéphane JEAN, Towards Performance Evaluation of Semantic Databases Management Systems, 29th British National Conference on Databases (BNCOD 2013), 2013

@INPROCEEDINGS{10794,
 author="Mbaiossoum Bery and Bellatreche Ladjel and Jean Stéphane",
 title="Towards Performance Evaluation of Semantic Databases Management Systems",
 booktitle="29th British National Conference on Databases",
 year="2013",
 month="jul",
}

Chedlia CHAKROUN, Ladjel BELLATRECHE, Yamine AIT-AMEUR, Nabila Berkani, Stéphane JEAN, Be Careful When Designing Semantic Databases: Data and Concepts Redundancy, The Seventh IEEE International Conference on Research Challenges in Information Science. (RCIS 2013), 2013

@INPROCEEDINGS{10832,
 author="Chakroun Chedlia and Bellatreche Ladjel and Ait-Ameur Yamine and Berkani Nabila and Jean Stéphane",
 title="Be Careful When Designing Semantic Databases: Data and Concepts Redundancy",
 booktitle="The Seventh IEEE International Conference on Research Challenges in Information Science.",
 year="2013",
 month="may",
}

Stéphane JEAN, Allel HADJALI, Ammar Mars, Towards a Cooperative Query Language for Semantic Web Database Queries (Short Paper), Proceedings of On the 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="Proceedings of On the Move to Meaningful Internet Systems: OTM 2013 - Confederated International Conferences: CoopIS, DOA-SVI and ODBASE",
 year="2013",
 month="sep",
}

Stéphane JEAN, Ladjel BELLATRECHE, Carlos Ordonez, Géraud FOKOU, Mickael BARON, OntoDBench: Interactively Benchmarking Ontology Storage in a Database (Demo paper), Proceedings of the 32nd International Conference on Conceptual Modeling (ER 2013), 2013

@INPROCEEDINGS{11861,
 author="Jean Stéphane and Bellatreche Ladjel and Ordonez Carlos and Fokou Géraud and Baron Mickael",
 title="OntoDBench: Interactively Benchmarking Ontology Storage in a Database (Demo paper)",
 booktitle="Proceedings of the 32nd International Conference on Conceptual Modeling",
 year="2013",
 month="nov",
}

Youness BAZHAR, Yamine AIT-AMEUR, Stéphane JEAN, BeMoRe: a Repository for Handling Models Behaviors, 25th International Conference on Software Engineering and Knowledge Engineering (SEKE 2013), 2013

@INPROCEEDINGS{11028,
 author="Bazhar Youness and Ait-Ameur Yamine and Jean Stéphane",
 title="BeMoRe: a Repository for Handling Models Behaviors",
 booktitle="25th International Conference on Software Engineering and Knowledge Engineering",
 year="2013",
 month="jun",
}

Youness BAZHAR, Yassine OUHAMMOU, Yamine AIT-AMEUR, Emmanuel GROLLEAU, Stéphane JEAN, Persistent Meta-Modeling Systems as Heterogeneous Model Repositories, International Conference on Model and Data Engineering (MEDI 2013), edited by Springer LNCS, 2013, pp. 25-37

@INPROCEEDINGS{11683,
 author="Bazhar Youness and Ouhammou Yassine and Ait-Ameur Yamine and Grolleau Emmanuel and Jean Stéphane",
 title="Persistent Meta-Modeling Systems as Heterogeneous Model Repositories",
 booktitle="International Conference on Model and Data Engineering",
 year="2013",
 editor="Springer LNCS",
 pages="25-37",
 month="sep",
}

Stéphane JEAN, Ladjel BELLATRECHE, Géraud FOKOU, Mickael BARON, Selma KHOURI, OntoDBench : Novel Benchmarking System for Ontology-Based Databases, Ontologies, DataBases, and Applications of Semantics (ODBASE 2012), 2012, pp. 897-914

@INPROCEEDINGS{9908,
 author="Jean Stéphane and Bellatreche Ladjel and Fokou Géraud and Baron Mickael and Khouri Selma",
 title="OntoDBench : Novel Benchmarking System for Ontology-Based Databases",
 booktitle="Ontologies, DataBases, and Applications of Semantics",
 year="2012",
 pages="897-914",
}

Henry Valéry TEGUIAK, Yamine AIT-AMEUR, Stéphane JEAN, Eric SARDET, MQL: a mapping management language for model-based databases, 14th International Conference on Enterprise Information Systems (ICEIS 2012), Wroclaw, Poland, June, 2012

@INPROCEEDINGS{9788,
 author="Teguiak Henry Valéry and Ait-Ameur Yamine and Jean Stéphane and Sardet Eric",
 title="MQL: a mapping management language for model-based databases",
 booktitle="14th International Conference on Enterprise Information Systems",
 year="2012",
 address="Wroclaw, Poland",
}

Youness BAZHAR, Chedlia CHAKROUN, Yamine AIT-AMEUR, Ladjel BELLATRECHE, Stéphane JEAN, Extending Ontology-Based Databases with Behavioral Semantics, Ontologies, DataBases, and Applications of Semantics (ODBASE 2012), 2012, pp. 879-896

@INPROCEEDINGS{9916,
 author="Bazhar Youness and Chakroun Chedlia and Ait-Ameur Yamine and Bellatreche Ladjel and Jean Stéphane",
 title="Extending Ontology-Based Databases with Behavioral Semantics",
 booktitle="Ontologies, DataBases, and Applications of Semantics",
 year="2012",
 pages="879-896",
}

Ilyes BOUKHARI, Ladjel BELLATRECHE, Stéphane JEAN, An Ontological Pivot Model to Interoperate Heterogeneous User Requirements, Proceedings of the 5th International Symposium On Leveraging Applications of Formal Methods, Verification and Validation (ISOLA 2012), 2012

@INPROCEEDINGS{9856,
 author="Boukhari Ilyes and Bellatreche Ladjel and Jean Stéphane",
 title="An Ontological Pivot Model to Interoperate Heterogeneous User Requirements",
 booktitle="Proceedings of the 5th International Symposium On Leveraging Applications of Formal Methods, Verification and Validation (ISOLA 2012)",
 year="2012",
}

Youness BAZHAR, Yamine AIT-AMEUR, Stéphane JEAN, Mickael BARON, A Flexible Support of Non Canonical Concepts In Ontology-Based Databases, Proceedings of the 8th International Conference on Web Information Systems and Technologies (WEBIST), Porto, Portugal, April, 2012, pp. 393-398

@INPROCEEDINGS{9700,
 author="Bazhar Youness and Ait-Ameur Yamine and Jean Stéphane and Baron Mickael",
 title="A Flexible Support of Non Canonical Concepts In Ontology-Based Databases",
 booktitle="Proceedings of the 8th International Conference on Web Information Systems and Technologies (WEBIST)",
 year="2012",
 pages="393-398",
 address="Porto, Portugal",
}

Abdelghani Bakhtouchi, Ladjel BELLATRECHE, Stéphane JEAN, Yamine AIT-AMEUR, Ontologies as a Solution for Simultaneously Integrating and Reconciliating Data Sources, Proceedings of the 6th IEEE International Conference on Research Challenges in Information Science (RCIS), May, 2012, pp. 1-12

@INPROCEEDINGS{9713,
 author="Bakhtouchi Abdelghani and Bellatreche Ladjel and Jean Stéphane and Ait-Ameur Yamine",
 title="Ontologies as a Solution for Simultaneously Integrating and Reconciliating Data Sources",
 booktitle="Proceedings of the 6th IEEE International Conference on Research Challenges in Information Science (RCIS)",
 year="2012",
 pages="1-12",
}

Henry Valéry TEGUIAK, Yamine AIT-AMEUR, Stéphane JEAN, Eric SARDET, Incremental design of ontologies: A model transformation-based approach, International Conference on Knowledge Engineering and Ontology Development (KEOD 2010), edited by Joaquim Filipe and Jan L.G. Dietz, 2010, pp. 94 - 103

@INPROCEEDINGS{9347,
 author="Teguiak Henry Valéry and Ait-Ameur Yamine and Jean Stéphane and Sardet Eric",
 title="Incremental design of ontologies: A model transformation-based approach",
 booktitle="International Conference on Knowledge Engineering and Ontology Development",
 year="2010",
 editor="Joaquim Filipe and Jan L.G. Dietz",
 pages="94 - 103",
}

Stéphane JEAN, Yamine AIT-AMEUR, Guy PIERRA, A Language for Ontology-Based Metamodeling Systems, 14th East-European on Advances In Databases and Information Systems (ADBIS 2010) (ADBIS 2010), LNCS 6295, edited by Springer, September, 2010, pp. 247-261

@INPROCEEDINGS{9092,
 author="Jean Stéphane and Ait-Ameur Yamine and Pierra Guy",
 title="A Language for Ontology-Based Metamodeling Systems",
 booktitle="14th East-European on Advances In Databases and Information Systems (ADBIS 2010)",
 year="2010",
 editor="Springer",
 pages="247-261",
}

Nabil BELAID, Yamine AIT-AMEUR, Stéphane JEAN, Jean-François Rainaud, TOWARD A SEMANTIC MANAGEMENT OF GEOLOGICAL MODELINGWORKFLOWS, International Conference on Knowledge Engineering and Ontology Development (KEOD 2010), edited by Joaquim Filipe and Jan L.G. Dietz, 2010

@INPROCEEDINGS{9337,
 author="Belaid Nabil and Ait-Ameur Yamine and Jean Stéphane and Rainaud Jean-François",
 title="TOWARD A SEMANTIC MANAGEMENT OF GEOLOGICAL MODELINGWORKFLOWS",
 booktitle="International Conference on Knowledge Engineering and Ontology Development",
 year="2010",
 editor="Joaquim Filipe and Jan L.G. Dietz",
}

Stéphane JEAN, Francisca Losavio, Alfredo Matteo, Nicole Levy, An Extension of OWL-S with Quality Standards, Fourth IEEE International Conference on Research Challenges in Information Science (RCIS 2010),, edited by IEEE, May, 2010, pp. 483-494

@INPROCEEDINGS{8913,
 author="Jean Stéphane and Losavio Francisca and Matteo Alfredo and Levy Nicole",
 title="An Extension of OWL-S with Quality Standards",
 booktitle="Fourth IEEE International Conference on Research Challenges in Information Science (RCIS 2010),",
 year="2010",
 pages="483-494",
 publisher="IEEE",
}

Laura Mastella, Yamine AIT-AMEUR, Stéphane JEAN, Michel Perrin, Jean-François Rainaud, Semantic exploitation of persistent metadata in engineering models: application to geological models, IEEE International Conference on Research Challenges in Information Science (RCIS 2009), edited by André Flory, Martine Collard, April, 2009, pp. 147-156

@INPROCEEDINGS{8404,
 author="Mastella Laura and Ait-Ameur Yamine and Jean Stéphane and Perrin Michel and Rainaud Jean-François",
 title="Semantic exploitation of persistent metadata in engineering models: application to geological models",
 booktitle="IEEE International Conference on Research Challenges in Information Science (RCIS 2009)",
 year="2009",
 editor="André Flory, Martine Collard",
 pages="147-156",
}

Dilek TAPUCU, Stéphane JEAN, Yamine AIT-AMEUR, Murat Osman Ünalir, An Extension of Ontology Based Databases to Handle Preferences, 11th International Conference on Enterprise Information Systems (ICEIS 2009), INSTICC, May, 2009, pp. 208-214

@INPROCEEDINGS{8393,
 author="Tapucu Dilek and Jean Stéphane and Ait-Ameur Yamine and Ünalir Murat Osman",
 title="An Extension of Ontology Based Databases to Handle Preferences",
 booktitle="11th International Conference on Enterprise Information Systems",
 year="2009",
 pages="208-214",
 organization="INSTICC",
 month="apr",
}

Chimène FANKAM, Stéphane JEAN, Guy PIERRA, Ladjel BELLATRECHE, Yamine AIT-AMEUR, Towards Connecting Database Applications to Ontologies, First International Conference on Advances in Databases, Knowledge, and Data Applications, edited by IEEE Computer Society, Conference Publishing Service, 2009, pp. 131-137

@INPROCEEDINGS{8544,
 author="Fankam Chimène and Jean Stéphane and Pierra Guy and Bellatreche Ladjel and Ait-Ameur Yamine",
 title="Towards Connecting Database Applications to Ontologies",
 booktitle="First International Conference on Advances in Databases, Knowledge, and Data Applications",
 year="2009",
 editor="IEEE Computer Society, Conference Publishing Service",
 pages="131-137",
}

Laura Mastella, Yamine AIT-AMEUR, Stéphane JEAN, Michel Perrin, Jean-François Rainaud, Semantic Exploitation of Engineering Models: an Application to Oilfield Models , Proceedings of the 6th British National Conference on Databases (BNCOD 2009), LNCS, July , 2009

@INPROCEEDINGS{8412,
 author="Mastella Laura and Ait-Ameur Yamine and Jean Stéphane and Perrin Michel and Rainaud Jean-François",
 title="Semantic Exploitation of Engineering Models: an Application to Oilfield Models ",
 booktitle="Proceedings of the 6th British National Conference on Databases (BNCOD 2009)",
 year="2009",
}

Chimène FANKAM, Stéphane JEAN, Ladjel BELLATRECHE, Yamine AIT-AMEUR, Extending the ANSI/SPARC Architecture Database with Explicit Data Semantics: An Ontology-Based Approach, Second European Conference on Software Architecture (ECSA 2008), edited by LNCS Springer, September, 2008, pp. 318-321

@INPROCEEDINGS{8123,
 author="Fankam Chimène and Jean Stéphane and Bellatreche Ladjel and Ait-Ameur Yamine",
 title="Extending the ANSI/SPARC Architecture Database with Explicit Data Semantics: An Ontology-Based Approach",
 booktitle="Second European Conference on Software Architecture",
 year="2008",
 editor="LNCS Springer",
 pages="318-321",
}

Chimène FANKAM, Stéphane JEAN, Guy PIERRA, Numeric reasoning in the Semantic Web, ESWC - SEMMA : First International Workshop on Semantic Metadata Management and Applications, SeMMA 2008, Located at the Fifth European Semantic Web Conference, vol. 346, CEUR Workshop Proceedings, edited by Khalid Belhajjame and Mathieu d'Aquin and Peter Haase and Paolo Missier, Tenerife, Spain, edited by CEUR-WS.org, June, 2008, pp. 84 - 103

@INPROCEEDINGS{8096,
 author="Fankam Chimène and Jean Stéphane and Pierra Guy",
 title="Numeric reasoning in the Semantic Web",
 booktitle="ESWC - SEMMA :  First International Workshop on Semantic Metadata Management and Applications, SeMMA 2008, Located at the Fifth European Semantic Web Conference",
 year="2008",
 editor="Khalid Belhajjame and  Mathieu d'Aquin and  Peter Haase and Paolo Missier",
 pages="84 - 103",
 publisher="CEUR-WS.org",
 address=" Tenerife, Spain",
}

Yamine AIT-AMEUR, Nabil BELAID, Mohammed Bennis, Olivier Corby, Rose Dieng-Kuntz, Jérémie Doucy, Priscille Durville, Chimène FANKAM, Fabien L. Gandon, Alain Giboin, Patrick Giroux, Sandrine Grataloup, Bruno Grilheres, Florian Husson, Stéphane JEAN, Joel Langlois, Phuc-Hiep Luong, Laura Mastella, Olivier Morel, Michel Perrin, Guy PIERRA, Jean-François Rainaud, Idir AIT-SADOUNE, Eric SARDET, Francois Tertre, João Francisco Valiati, Semantic Hubs for Geological Projects, Workshop on Semantic Metadata Management and Applications (SeMMA 2008), June, 2008, pp. 3-17

@INPROCEEDINGS{8457,
 author="Ait-Ameur Yamine and Belaid Nabil and Bennis Mohammed and Corby Olivier and Dieng-Kuntz Rose and Doucy Jérémie and Durville Priscille and Fankam Chimène and Gandon Fabien L. and Giboin Alain and Giroux Patrick and Grataloup Sandrine and Grilheres Bruno and Husson Florian and Jean Stéphane and Langlois Joel and Luong Phuc-Hiep and Mastella Laura and Morel Olivier and Perrin Michel and Pierra Guy and Rainaud Jean-François and Ait-Sadoune Idir and Sardet Eric and Tertre Francois and Valiati João Francisco",
 title="Semantic Hubs for Geological Projects",
 booktitle="Workshop on Semantic Metadata Management and Applications",
 year="2008",
 pages="3-17",
 month="jun",
}

Stéphane JEAN, Hondjack DEHAINSALA, Dung NGUYEN XUAN, Guy PIERRA, Ladjel BELLATRECHE, Yamine AIT-AMEUR, OntoDB: It is Time to Embed your Domain Ontology in your Database, Database Systems for Advanced Applications (DASFAA'07) (Demo Paper), edited by LNCS, 2007, pp. 1119-1122

@INPROCEEDINGS{7728,
 author="Jean Stéphane and Dehainsala Hondjack and Nguyen Xuan Dung and Pierra Guy and Bellatreche Ladjel and Ait-Ameur Yamine",
 title="OntoDB: It is Time to Embed your Domain Ontology in your Database",
 booktitle="Database Systems for Advanced Applications (DASFAA'07) (Demo Paper)",
 year="2007",
 pages="1119-1122",
 publisher="LNCS",
}

Stéphane JEAN, Yamine AIT-AMEUR, Guy PIERRA, An Object-Oriented Based Algebra for Ontologies and their Instances, Advances in Databases and Information Systems (ADBIS'07), vol. 4690/2007, Lecture Notes in Computer Science, edited by Springer Berlin / Heidelberg, 2007, pp. 141-156

@INPROCEEDINGS{7846,
 author="Jean Stéphane and Ait-Ameur Yamine and Pierra Guy",
 title="An Object-Oriented Based Algebra for Ontologies and their Instances",
 booktitle="Advances in Databases and Information Systems (ADBIS'07)",
 year="2007",
 editor="Springer Berlin / Heidelberg",
 pages="141-156",
}

Guy PIERRA, Yamine AIT-AMEUR, Ladjel BELLATRECHE, Hondjack DEHAINSALA, Stéphane JEAN, Chimène FANKAM, Dung NGUYEN XUAN, Données à base ontologique: gestion, interrogation, intégration, Première édition des Journées Francophones sur les Ontologies (JFO 2007), Octobre, 2007

@INPROCEEDINGS{8481,
 author="Pierra Guy and Ait-Ameur Yamine and Bellatreche Ladjel and Dehainsala Hondjack and Jean Stéphane and Fankam Chimène and Nguyen Xuan Dung",
 title="Données à base ontologique: gestion, interrogation, intégration",
 booktitle="Première édition des Journées Francophones sur les Ontologies (JFO 2007)",
 year="2007",
}

Stéphane JEAN, Guy PIERRA, Yamine AIT-AMEUR, Domain Ontologies : a Database-Oriented Analysis, Third International Conference on Web Information Systems and Technologies (WEBIST 2006), edited by José A. Moinhos Cordeiro, Vitor Pedrosa, Bruno Encarnação, Joaquim Filipe, edited by INSTICC PRESS, april, 2006, pp. 341-351

@INPROCEEDINGS{7412,
 author="Jean Stéphane and Pierra Guy and Ait-Ameur Yamine",
 title="Domain Ontologies : a Database-Oriented Analysis",
 booktitle="Third International Conference on Web Information Systems and Technologies",
 year="2006",
 editor="José A. Moinhos Cordeiro, Vitor Pedrosa, Bruno Encarnação, Joaquim Filipe",
 pages="341-351",
 publisher="INSTICC PRESS",
 month="apr",
}

Stéphane JEAN, Yamine AIT-AMEUR, Guy PIERRA, Querying Ontology Based Databases Using OntoQL (an Ontology Query Language), Ontologies, DataBases, and Applications of Semantics (ODBASE 2006), vol. 4275, Lecture Notes in Computer Science, edited by R.Meersman, Z. Tari et al., edited by Springer, 2006, pp. 704-721

@INPROCEEDINGS{7734,
 author="Jean Stéphane and Ait-Ameur Yamine and Pierra Guy",
 title="Querying Ontology Based Databases Using OntoQL (an Ontology Query Language)",
 booktitle="Ontologies, DataBases, and Applications of Semantics",
 year="2006",
 editor="R.Meersman, Z. Tari et al.",
 pages="704-721",
 publisher="Springer",
}

Stéphane JEAN, Yamine AIT-AMEUR, Guy PIERRA, Querying ontology based databases. The OntoQL proposal, Software Engineering and Knowledge Engineering (SEKE 2006), edited by Knowledge Systems Institute Graduate School, Juillet, 2006, pp. 166-171

@INPROCEEDINGS{7423,
 author="Jean Stéphane and Ait-Ameur Yamine and Pierra Guy",
 title="Querying ontology based databases. The OntoQL proposal",
 booktitle="Software Engineering and Knowledge Engineering",
 year="2006",
 pages="166-171",
 publisher="Knowledge Systems Institute Graduate School",
}

Stéphane JEAN, Guy PIERRA, Yamine AIT-AMEUR, OntoQL: an exploitation language for OBDBs, Very Large Data Bases (VLDB 2005), 29 Août, 2005

@INPROCEEDINGS{7282,
 author="Jean Stéphane and Pierra Guy and Ait-Ameur Yamine",
 title="OntoQL: an exploitation language for OBDBs",
 booktitle="Very Large Data Bases",
 year="2005",
 month="aug",
}

National Conferences

(14)

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",
}

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",
}

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",
}

Selma BOUARAR, Ladjel BELLATRECHE, Stéphane JEAN, Mickael BARON, Leveraging Ontology-based Methodologies for Designing Semantic Data Warehouses, 29èmes journées Bases de Données Avancées (BDA 2013), 2013

@INPROCEEDINGS{16158,
 author="Bouarar Selma and Bellatreche Ladjel and Jean Stéphane and Baron Mickael",
 title="Leveraging Ontology-based Methodologies for Designing Semantic Data Warehouses",
 booktitle="29èmes journées Bases de Données Avancées",
 year="2013",
 month="oct",
}

Youness BAZHAR, Stéphane JEAN, Yamine AIT-AMEUR, Mickael BARON, Extension de ONTODB pour construire une architecture générique de bases de données à base ontologique, 6ème Conférence francophone sur les Architectures Logicielles (CAL), Montpellier, France, May, 2012

@INPROCEEDINGS{9765,
 author="Bazhar Youness and Jean Stéphane and Ait-Ameur Yamine and Baron Mickael",
 title="Extension de ONTODB pour construire une architecture générique de bases de données à base ontologique",
 booktitle="6ème Conférence francophone sur les Architectures Logicielles (CAL)",
 year="2012",
 address="Montpellier, France",
}

Bery MBAIOSSOUM, Selma KHOURI, Ladjel BELLATRECHE, Stéphane JEAN, Mickael BARON, Etude Comparative des Systèmes de Bases de Données à base Ontologiques, INFormatique des ORganisations et Systèmes d’Information et de Décision (INFORSID 2012), 2012, pp. 379-394

@INPROCEEDINGS{9777,
 author="Mbaiossoum Bery and Khouri Selma and Bellatreche Ladjel and Jean Stéphane and Baron Mickael",
 title="Etude Comparative des Systèmes de Bases de Données à base Ontologiques",
 booktitle="INFormatique des ORganisations et Systèmes d’Information et de Décision",
 year="2012",
 pages="379-394",
}

Stéphane JEAN, Ladjel BELLATRECHE, Géraud FOKOU, Mickael BARON, Selma KHOURI, OntoDBench: Ontology-based Database Benchmark, 28e journées Bases de Données Avancées (BDA 2012), Clermont Ferrand, 2012

@INPROCEEDINGS{9930,
 author="Jean Stéphane and Bellatreche Ladjel and Fokou Géraud and Baron Mickael and Khouri Selma",
 title="OntoDBench: Ontology-based Database Benchmark",
 booktitle="28e journées Bases de Données Avancées",
 year="2012",
 address="Clermont Ferrand",
}

Stéphane JEAN, Francisca Losavio, Alfredo Matteo, Nicole Levy, Extension de OWL-S avec les Standards de Qualité, Journées Francophones sur les Ontologies (JFO 2009), edited by ACM, 2009, pp. 121-130

@INPROCEEDINGS{8883,
 author="Jean Stéphane and Losavio Francisca and Matteo Alfredo and Levy Nicole",
 title="Extension de OWL-S avec les Standards de Qualité",
 booktitle="Journées Francophones sur les Ontologies",
 year="2009",
 pages="121-130",
 publisher="ACM",
}

Dilek TAPUCU, Gayo DIALLO, Stéphane JEAN, Yamine AIT-AMEUR, Murat Osman Ünalir, Nacima Belaidi, Définition et Exploitation des Préférences au Niveau Sémantique, Journées Francophones sur les Ontologies (JFO 2009), edited by ACM, 2009, pp. 29-36

@INPROCEEDINGS{8873,
 author="Tapucu Dilek and Diallo Gayo and Jean Stéphane and Ait-Ameur Yamine and Ünalir Murat Osman and Belaidi Nacima",
 title="Définition et Exploitation des Préférences au Niveau Sémantique",
 booktitle="Journées Francophones sur les Ontologies",
 year="2009",
 pages="29-36",
 publisher="ACM",
}

Nabil BELAID, Idir AIT-SADOUNE, Yamine AIT-AMEUR, Jean-François Rainaud, Stéphane JEAN, Une architecture orientée services pour la gestion sémantique des données géologiques pour le stockage de CO2, Actes de l’atelier Systèmes d’Information et de Décision pour l’Environnement du Congrès INFORSID 2008, 2008, pp. 67-76

@INPROCEEDINGS{8471,
 author="Belaid Nabil and Ait-Sadoune Idir and Ait-Ameur Yamine and Rainaud Jean-François and Jean Stéphane",
 title="Une architecture orientée services pour la gestion sémantique des données géologiques pour le stockage de CO2",
 booktitle="Actes de l’atelier Systèmes d’Information et de Décision pour l’Environnement du Congrès INFORSID 2008",
 year="2008",
 pages="67-76",
}

Chimène FANKAM, Stéphane JEAN, Guy PIERRA, Ladjel BELLATRECHE, Enrichissement de l'architecture ANSI/SPARC pour expliciter la sémantique des données : une approche fondée sur les ontologies, Actes de la 2ème Conférence francophone sur les Architectures Logicielles (CAL'08), edited by Revue RNTI, mars, 2008, pp. 47-61

@INPROCEEDINGS{8005,
 author="Fankam Chimène and Jean Stéphane and Pierra Guy and Bellatreche Ladjel",
 title="Enrichissement de l'architecture ANSI/SPARC pour expliciter la sémantique des données : une approche fondée sur les ontologies",
 booktitle="Actes de la 2ème Conférence francophone sur les Architectures Logicielles (CAL'08)",
 year="2008",
 editor="Revue RNTI",
 pages="47-61",
}

Chimène FANKAM, Stéphane JEAN, Guy PIERRA, Raisonnement Numérique sur les Relations d’Ordre pour le Web Sémantique, Actes de la deuxième édition des Journées Francophones sur les Ontologies (JFO 2008), edited by ACM, Décembre, 2008, pp. 4-15

@INPROCEEDINGS{8463,
 author="Fankam Chimène and Jean Stéphane and Pierra Guy",
 title="Raisonnement Numérique sur les Relations d’Ordre pour le Web Sémantique",
 booktitle="Actes de la deuxième édition des Journées Francophones sur les Ontologies (JFO 2008)",
 year="2008",
 editor="ACM",
 pages="4-15",
}

Stéphane JEAN, Yamine AIT-AMEUR, Guy PIERRA, Une approche langage pour la gestion de données dans les systèmes de méta-modélisation, INFormatique des ORganisations et Systèmes d’Information et de Décision (INFORSID 2007), Mai, 2007

@INPROCEEDINGS{7757,
 author="Jean Stéphane and Ait-Ameur Yamine and Pierra Guy",
 title="Une approche langage pour la gestion de données dans les systèmes de méta-modélisation",
 booktitle="INFormatique des ORganisations et Systèmes d’Information et de Décision",
 year="2007",
}

Hondjack DEHAINSALA, Stéphane JEAN, Dung NGUYEN XUAN, Guy PIERRA, Ingénierie dirigée par lesmodèles en EXPRESS : un exemple d’application, IDM (Ingénierie dirigée par les modèles), 30 juin - 1er juillet, 2005

@INPROCEEDINGS{7289,
 author="Dehainsala Hondjack and Jean Stéphane and Nguyen Xuan Dung and Pierra Guy",
 title="Ingénierie dirigée par lesmodèles en EXPRESS : un exemple d’application",
 booktitle="IDM (Ingénierie dirigée par les modèles)",
 year="2005",
}

Thesis and HDR

(1)

Stéphane JEAN, OntoQL, un langage d’exploitation des bases de données à base ontologique, Thesis, Sciences pour l'Ingénieur et Aéronautique, december, 2007

$http://tel.archives-ouvertes.fr/docs/00/20/17/77/PDF/these-stephane-jean.pdf$

@PHDTHESIS{7950,
 author="Jean Stéphane",
 title="OntoQL, un langage d’exploitation des bases de données à base ontologique",
 year="2007",
 month="dec",
}

Research Reports

(5)

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",
}

Yamine AIT-AMEUR, Idir AIT-SADOUNE, Mickael BARON, Chimène FANKAM, Stéphane JEAN, Guy PIERRA, Eric SARDET, Rapport Evaluation - Lot 1 (Tache 1.3) - Projet E-Wok-Hub, LISI / ENSMA, 2009

@TECHREPORT{8908,
 author="Ait-Ameur Yamine and Ait-Sadoune Idir and Baron Mickael and Fankam Chimène and Jean Stéphane and Pierra Guy and Sardet Eric",
 title="Rapport Evaluation - Lot 1 (Tache 1.3) - Projet E-Wok-Hub",
 institution="LISI / ENSMA",
 year="2009",
 month="2009",
}

Yamine AIT-AMEUR, Chimène FANKAM, Stéphane JEAN, Guy PIERRA, Eric SARDET, Outils et Services de gestion des Ontologies - Lot 2 - Projet ANR E-Wok-Hub, LISI / ENSMA, 2007

@TECHREPORT{8892,
 author="Ait-Ameur Yamine and Fankam Chimène and Jean Stéphane and Pierra Guy and Sardet Eric",
 title="Outils et Services de gestion des Ontologies - Lot 2 - Projet ANR E-Wok-Hub",
 institution="LISI / ENSMA",
 year="2007",
 month="2007",
}

Yamine AIT-AMEUR, Hondjack DEHAINSALA, Stéphane JEAN, Guy PIERRA, Eric SARDET, Persistance des données ontologiques avec OntoDB et langage d'exploitation OntoQL - Lot 3 - Projet E-Wok-Hub, LISI / ENSMA, 2007

@TECHREPORT{8899,
 author="Ait-Ameur Yamine and Dehainsala Hondjack and Jean Stéphane and Pierra Guy and Sardet Eric",
 title="Persistance des données ontologiques avec OntoDB et langage d'exploitation OntoQL - Lot 3 - Projet E-Wok-Hub",
 institution="LISI / ENSMA",
 year="2007",
 month="2007",
}

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