Ladjel BELLATRECHE's Home Page

Ladjel Bellatreche is a Professor at National Engineering School for Mechanics and Aerotechnics (ENSMA), Poitiers, where he joined as a faculty member since Sept 2010, and a member of Data Engineering Team of Laboratory of Applied Computer Science (LISI). Prior to that, he spent eight years as Assistant and then Associate Professor at Poitiers University, France. He was a Visiting Professor of the Québec en Outaouais, Canada, a Visiting Researcher at Department of Computer Science, Purdue University, USA and Department of Computer Science of Hong Kong University of Science and Technology, China. He is also involved in Research Postgraduate Programmes in Computer Science of several Universities and Schools in Algeria (Sidi Bel Abbès, where here he got his Engineer degree from the Department of Computer Science in 1992, National High School for Computer Science, Boumerdes University, Oran University, Béjaia University, Saida University, Béchar University, etc.).

Prof. Ladjel Bellatreche has been actively involved in the research community by serving as reviewer for technical journals (IEEE TKDE, DKE, Distributed and Parallel Database Journal, etc.) and Editorial Board Member, International Journal of Reasoning-based Intelligent Systems, Inderscience, and as an organizer/co-organizer of numerous international and National Conferences and Workshops (MEDI, DASFAA, WISE, EDA, JFO). Some recent conferences in which he is playing or has played major roles include MEDI, WISE Workshops. In addition, he served as a programme committee member for over twenty international conferences and Workshops (including ADBIS, DASFAA, CIKM, COMAD, ODBASE, DEXA, DAWAK, WISE, BPM, DOLAP, ICA3PP, etc.) and is a Steering Committee member of MEDI and EDA.

Research area

Publications

Abdelghani Bakhtouchi, Ladjel Bellatreche, Stéphane Jean and Yamine Ait-Ameur, MIRSOFT: Mediator for Integrating and Reconciling Sources using Ontological FuncTional Dependencies, International Journal Web and Grid Services, vol. 8(1), 2012, pp. 72-110

Abdelghani Bakhtouchi, Ladjel Bellatreche, Stéphane Jean and Yamine Ait-Ameur, Ontologies as a Solution for Simultaneously Integrating and Reconciliating Data Sources, To Appear in Proceedings of the 6th IEEE International Conference on Research Challenges in Information Science (RCIS), May, 2012

Abdelghani Bakhtouchi, Chedlia Chakroun, Ladjel Bellatreche and Yamine Ait Ameur, Mediated Data Integration Systems using Functional Dependencies Embedded in Ontologies, Recent Trends in Information Reuse and Integration Book, Springer, 2012, pp. 227-256

Ladjel Bellatreche, Soumia Benkrid, Alain Crolotte, Alfredo Cuzzocrea and Ahmad Ghazal, The F&A Methodology for Designing and Querying Parallel Relational Data Warehouses on Heterogeneous Database Clusters, and its Experimental Validation on a Real-Life Parallel Processing Database System, To Appear in Proceedings of the Sixth International Conference on Complex, Intelligent, and Software Intensive Systems, edited by IEEE, Palermo, Italy, July, 2012

Ladjel Bellatreche, Dimension Table Selection Strategies to Referential Partition a Fact Table of Relational Data Warehouses, Recent Trends in Information Reuse and Integration Book, Springer, 2012, pp. 19-42

Ladjel Bellatreche, Kamel Boukhalfa, Pascal Richard and Soumia Benkrid, Data Partitioning dor Designing and Simulating Efficient Huge Databases, Scalable Computing and Communications: Theory and Practice, Samee U. Khan, Lizhe Wang, and Albert Y. Zomaya, Wiley, 2012

Ladjel Bellatreche, Gilles Kassel and Philippe Thiran, Les ontologies à l’épreuve des usages, 31(1), Numéro spécial de la Revue Technique et Science Informatiques (TSI)., 2012

Ladjel Bellatreche, Selma Khouri, Ilyès Boukhari and Rima Bouchakri, Using Ontologies and Requirements for Constructing and Optimizing Data Warehouses, Proceedings of the 30th IEEE International Convention MIPRO, Opatija, Croatia, May, 2012

Ladjel Bellatreche, Guy Pierra and Eric Sardet, Evolution Management of Data Integration Systems by the Means of Ontological Continuity Principle , Recent Trends in Information Reuse and Integration Book, Springer, 2012, pp. 77-96

Rima Bouchakri and Ladjel Bellatreche, Sélection statique et incrémentale des index de jointure binaire: concepts, algorithmes, étude de performance, To appears Journal of Decision Systems , 2012

Rima Bouchakri and Ladjel Bellatreche, Sélection Incrémentale d'un Schéma de Fragmentation Horizontale d'un Entrepôt de Données Relationnel, 8èmes Journées francophones sur les Entrepôts de Données et l'Analyse en ligne (EDA'2012) , June, 2012

Amira Kerkad, Ladjel Bellatreche and Dominique Geniet, Exploitation de l'Interaction des Requêtes OLAP pour la Gestion de Cache et l'Ordonnancement de Traitements, 8èmes Journées francophones sur les Entrepôts de Données et l'Analyse en ligne (EDA'2012) , Juin, 2012

Amira Kerkad, Ladjel Bellatreche and Dominique Geniet, Simultaneous Resolution of Buffer Allocation and Query Scheduling Problems, To Appear in Proceedings of the Sixth International Conference on Complex, Intelligent, and Software Intensive Systems, edited by IEEE, Palermo, Italy, July, 2012

Bery Mbaiossoum, Selma Khouri, Ladjel Bellatreche, Stéphane Jean and Mickael Baron, Etude Comparative des Systèmes de Bases de Données à base Ontologiques, INFORSID, 2012

Kevin Royer, Ladjel Bellatreche, Anne Le-Mouel and Gilbert Schmitt, Un Entrepôt de Données pour la Gestion des Véhicules Electriques: Retour d’Expérience, 8èmes Journées francophones sur les Entrepôts de Données et l'Analyse en ligne (EDA'2012) , June, 2012

Abdelghani Bakhtouchi and Ladjel Bellatreche, Ontologies and Functional Dependencies for Data Integration and Reconciliation, The 1st International Workshop on Modeling and Reasoning for Business Intelligence (MoreBi), held in conjunction with the 30th International Conference on Conceptual Modeling (ER 2011), edited by LNCS, 2011, pp. 98-107

Ladjel Bellatreche, Soumia Benkrid, Ahmad Ghazal, Alain Crolotte and Alfredo Cuzzocrea, Verification of Partitioning & Allocation Techniques on Teradata DBMS, The 11th International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP'2011), edited by LNCS, Springer, Melbourne, Australia, October, 2011, pp. 158-169

Ladjel Bellatreche, Soumia Benkrid, Ahmad Ghazal, Alain Crolotte and Alfredo Cuzzocrea, Deployment of Parallel Data Warehouse Joint Design in Teradata, LISI, 2011

Ladjel Bellatreche and Filipe Mota Pinto, Model and Data Engineering: First International Conference, MEDI 2011, 6918, Ladjel Bellatreche and Filipe Mota Pinto, Obidos, Portugal, September, 2011

Soumia Benkrid and Ladjel Bellatreche, Une démarche conjointe de fragmentation et de placement dans le cadre des entrepôts de données parallèles, Technique et Science Iinformatiques (TSI), vol. 30(8), 2011, pp. 953-973

Rima Bouchakri and Ladjel Bellatreche, On Simplifying Integrated Physical Database Design, 15th East European Conference on Advances in Databases and Information Systems (ADBIS'2011), LNCS, Springer, September, 2011, pp. 333-346

Rima Bouchakri, Kamel Boukhalfa and Ladjel Bellatreche, Algorithmes de Sélection des Index de Jointure Binaires Mono et Multi Attributs, Ingénierie des Systèmes d'Information Journal, vol. 16(6), 2011, pp. 91-116

Ryma Bouchakri and Ladjel Bellatreche, Sélection Statique et Incrémentale des Index de Jointure Binaires Multiples, To apppears in 7èmes Journées Francophones sur les Entrepôts de Données et analyse en Ligne (EDA’11), edited by RNTI, 2011

Ryma Bouchakri, Kamel Boukhalfa and Ladjel Bellatreche, Requêtes Utilisées dans la Partie Expérimentale, LISI, 2011

Kamel Boukhalfa, Ladjel Bellatreche and Pascal Richard, Primary and Referential Horizontal Partitioning Selection Problems: Concepts, Algorithms and Advisor Tool, To appear in Integrations of Data Warehousing, Data Mining and Database Technologies: Innovative Approaches, In David Taniar and Li Chen (eds), Hershey, PA: IGI Global, 2011

Chedlia Chakroun, Ladjel Bellatreche and Yamine Ait Ameur, Ontological Concept Dependencies driven Approach to Design Ontology-Based Databases, LISI/ENSMA, 3, February , 2011

Chedlia Chakroun, Ladjel Bellatreche and Yamine Ait Ameur, The Role of Class Dependencies in Designing Ontology-based Databases, 7th International IFIP Workshop on Semantic Web & Web Semantics (SWWS'2011), Springer LNCS, October, 2011, pp. 444-453

Amira Kerkad, Ladjel Bellatreche and Dominique Geniet, Heuristics for Solving the Integrated Buffer Management and Query Scheduling Problem, LISI, December, 2011

Selma Khouri and Ladjel Bellatreche, DWOBS: Data Warehouse Design from Ontology-based Sources, in 16th International Conference on Database Systems for Advanced Applications (DASFAA' 2011), April, 2011, pp. 438-441

Selma Khouri and Ladjel Bellatreche, Osons tout Persister dans un Entrepôt: Données et Modèles, To apppears in 7èmes Journées Francophones sur les Entrepôts de Données et analyse en Ligne (EDA’11), edited by RNTI, 2011

Selma Khouri and Ladjel Bellatreche, "Valorisation des besoins des utilisateurs dans le processus de conception et d’exploitation des entrepôts de données, 4èmes Journées Francophones sur les Ontologies (JFO'2011), 2011

Selma Khouri, Ladjel Bellatreche and Patrick Marcel, Embedding User's Requirements in Data Warehouse Repositories, 27èmes journées de Bases de Données Avancées (BDA'2011), 2011

Selma Khouri, Ladjel Bellatreche and Patrick Marcel, Embedding User's Requirements in Ontology-based Data Warehouses, International Conference on Ontologies, Databases, and Applications of Semantics (ODBASE), October, 2011, pp. 35-36

Oscar Romero, Patrick Marcel, Alberto Abello, Veréonika Peralta and Ladjel Bellatreche, Describing Analytical Sessions Using a Multidimensional Algebra, 13th International Conference on Data Warehousing and Knowledge Discovery (DaWaK'2011), edited by Springer, 2011

Henry Valéry Téguiak, Y. Aït-Ameur, Eric Sardet and Ladjel Bellatreche, MQL: an extension of SQL for mappings manipulation, LIAS/ISAE-ENSMA, 2011

Ladjel Bellatreche, Yamine Aït-Ameur and Chedlia Chakroun, A design methodology of ontology based database applications, Logic Journal of the IGPL - Oxford University Press, 2010

Ladjel Bellatreche, Yamine Aït-Ameur and Guy Pierra, Contribution of ontologies in designing advanced information systems, Data & Knowledge Engineering (DKE) - Elsevier, vol. 69(11), November, 2010, pp. 1-3

Ladjel Bellatreche, Yamine Aït-Ameur and Guy Pierra, Guest editorial: Special issue on Contribution of Ontologies in Advanced Information Systems, Data & Knowledge Engineering (DKE), Peter Chen, 2010

Ladjel Bellatreche and Kamel Boukhalfa, Yet Another Algorithms for Selecting Bitmap Join Indexes, in 12th International Conference on Data Warehousing and Knowledge Discovery (DAWAK'10), Springer, LNCS, September, 2010, pp. 105-116

Ladjel Bellatreche, Alfredo Cuzzocrea and Soumia Benkrid, Query Optimization over Parallel Relational Data Warehouses in Distributed Environments by Simultaneous Fragmentation and Allocation, The 10th International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP), vol. 6081, edited by LNCS Springer, Busan Korea, May, 2010, pp. 124–135

Ladjel Bellatreche, Alfredo Cuzzocrea and Soumia Benkrid, F&A: A Methodology for Effectively and Efficiently Designing Parallel Relational Data Warehouses on Heterogenous Database Clusters, in 12th International Conference on Data Warehousing and Knowledge Discovery (DAWAK'10), LNCS, Springer, September, 2010, pp. 89-104

Ryma Bouchakri and Ladjel Bellatreche, ASADD: Attribute Similarity-Aware Database Designer for Partitioning and Indexes, LISI/ENSMA, September, 2010

Ryma Bouchakri, Ladjel Bellatreche and Kamel Boukhalfa, Une Approche par K-means de Sélection Multiple de Structures d’Optimisation dans les Entrepôts de Données, 6èmes Journées Francophones sur les Entrepôts de Données et analyse en Ligne (EDA’10), edited by RNTI, Juin, 2010, pp. 207-222

Kamel Boukhalfa, Ladjel Bellatreche and Ziani Benameur, Index de Jointure Binaires: Stratégies de Sélection & Étude de Performances, 6èmes Journées Francophones sur les Entrepôts de Données et analyse en Ligne (EDA’10), edited by RNTI, Juin, 2010, pp. 175-190

Dickson K.W. Chiu, Ladjel Bellatreche, Hideyasu Sasaki, Ho-fung Leung, Shing-Chi Cheung, Haiyang Hu and Jie Shao, WISE 2010 International Symposium WISS, and International Workshops CISE, MBC: Revised Selected Papers, Springer, Hong Kong, China, December, 2010

Selma Khouri and Ladjel Bellatreche, OntoStar : Outil de conception multidimensionnelle d’un entrepôt de données à base ontologique, 26èmes journées Bases de Données Avancées (BDA'2010), October, 2010

Selma Khouri and Ladjel Bellatreche, A Methodology and Tool for Conceptual Designing a Data Warehouse from Ontology-based Sources, ACM Thirteenth International Workshop On Data Warehousing and OLAP (DOLAP 2010), Toronto, Canada, ACM, October, 2010, pp. 19-23

Ladjel Bellatreche, Contributions à la Conception et l’Exploitation des Systèmes d’Intégration de Données, Thesis, Habilitation à diriger les recherches, ENSMA, Novembre, 2009

Ladjel Bellatreche, Optimization and Tuning in Data Warehouses, Encyclopedia of Database Systems, Ling Liu and Tamer Özsu, Spring, 2009, pp. 69-76

Ladjel Bellatreche, Physical data warehouse design , Distributed and Parallel Database Journal - Springer, vol. 25(1), February, 2009, pp. 1-3

Ladjel Bellatreche, Data Warehousing Design and Advanced Engineering Applications: Methods for Complex Construction, Advances in Data Warehousing and Mining (ADWM) Book Series, David Taniar, July, 2009

Ladjel Bellatreche, Kamel Boukhalfa and Zaia Alimazighi, SimulPh.D.: A Physical Design Simulator Tool, Proceedings of 20th International Conference on Database and Expert Systems Applications (DEXA09), Springer, LNCS, 2009, pp. 263-270

Ladjel Bellatreche, Kamel Boukhalfa, Pascal Richard and Komla Yamavo Woameno, Referential Horizontal Partitioning Selection Problem in Data Warehouses: Hardness Study and Selection Algorithms , International Journal of Data Warehousing and Mining, vol. 5(4), 2009, pp. 1-23

Ladjel Bellatreche, Gilles Kassel and Philippe Thiran, JFO 2009 - 3ème édition des Journées Francophones sur les Ontologies, ACM Press, Décembre, 2009

Ladjel Bellatreche and Benkrid Soumia, A Joint Design Approach for Partitioning and Allocation in Parallel Data Warehouses, Proceedings of 11th International Conference on Data Warehousing and Knowledge Discovery (DAWAK09), Springer, 2009, pp. 99-110

Ladjel Bellatreche and Komla Yamavo Woameno, Dimension Table driven Approach to Referential Partition Relational Data Warehouses, ACM Twelfth International Workshop on Data Warehousing and OLAP (DOLAP'09), ACM, November, 2009, pp. 9-16

Soumia Benkrid and Ladjel Bellatreche, Une démarche conjointe de fragmentation et de placement dans le cadre des entrepôts de données parallèles, 5èmes Journées francophones sur les Entrepôts de Données et l’Analyse en ligne (EDA'09), edited by RNTI, 2009

Kamel Boukhalfa, Ladjel Bellatreche and Sybille Caffiau, De l’optimisation de requêtes aux outils d’administration des entrepôts de données, RSTI - ISI (Ingénierie des Systèmes d'Information), vol. 13(6/2008 ), 2009, pp. 33-62

Chimène Fankam, Ladjel Bellatreche, Hondjack Dehainsala, Yamine Ait-Ameur and Guy Pierra, SISRO : conception de bases de données à partir d’ontologies de domaine , Technique et science informatiques (TSI), vol. 28, 2009

Chimène Fankam, Stéphane Jean, Guy Pierra, Ladjel Bellatreche and 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

Selma Khouri, Ladjel Bellatreche and Chimène Fankam, SISROM2C : Un outil de modélisation conceptuelle à base ontologique d'un entrepôt de données, 5èmes Journées francophones sur les Entrepôts de Données et l’Analyse en ligne (EDA'09), vol. RNTI B-5, edited by RTNI, Juin, 2009, pp. 123-138

Ladjel Bellatreche, Bitmap join indexes vs. Data Partitioning, Encyclopedia of Data Warehousing and Mining - 2nd Edition , 2008

Ladjel Bellatreche, A Genetic Algorithm for Selecting Horizontal Fragments, Encyclopedia of Data Warehousing and Mining - 2nd Edition , John Wang, 2008

Ladjel Bellatreche, Horizontal Data Partitioning: Past, Present and Future, in Encyclopedia of Database Technologies and Applications , 2008

Ladjel Bellatreche, From Designing Data Warehouse Applications to Tuning, International Conference on. Web and Information Technologies (ICWIT'08), Juin, 2008

Ladjel Bellatreche, Kamel Boukhalfa and Sybille Caffiau, ParAdmin: Un Outil d’Assistance à l’Administration et Tuning d’un Entrepôt de Données, Revue des Nouvelles Technologies de l'Information (EDA'2008), edited by Editions Cépaduès, Juin, 2008

Ladjel Bellatreche, Kamel Boukhalfa and Pascal Richard, Horizontal Partitioning in Data Warehouse: Hardness Study, Selection Algorithms and Validation on ORACLE10G, in 10th International Conference on Data Warehousing and Knowledge Discovery (DaWaK 2008), edited by LNCS, September, 2008, pp. 87-96

Ladjel Bellatreche, Rokia Missaoui, Hamid Necir and Habiba Drias, A Data Mining Approach for Selecting Bitmap Join Indices, Journal of Computing Science and Engineering, vol. 2(1), January, 2008, pp. 206-223

Ladjel Bellatreche and Mukesh Mohania, Physical Data Warehousing Design, Data Warehousing and Mining: Concepts, Methodologies, Tools, and Applications, Information Science reference, 2008, pp. 18-25

Soumia Benkrid, Ladjel Bellatreche and Habiba Drias, A Combined Selection of Fragmentation and Allocation Schemes in Parallel Data Warehouses, 4th International Workshop on Data Management in Global Data Repositories (GREP'08), edited by IEEE Computer Society Press, Septembre, 2008, pp. 370-374

Kamel Boukhalfa, Ladjel Bellatreche and Zaia Alimazighi, HP&BJI: A Combined Selection of Data Partitioning and Join Indexes for Improving OLAP Performance, Annals of Infomation Systems, Springer, Special Issue on New Trends in DW and OLAP, 2008, pp. 179-2001

Kamel BOUKHALFA, Ladjel BELLATRECHE and Pascal RICHARD, Fragmentation Primaire et Dérivée: Étude de Complexité, Algorithmes de Sélection et Validation sous ORACLE10g, LISI, Rapport de Recherche, N° 01 -2008, Mars, 2008

Kamel Boukhalfa, Ladjel Bellatreche and Pascal Richard, Fragmentation Primaire et Dérivée: Étude de Complexité, Algorithmes de Sélection et Validation sous ORACLE10g, Revue des Nouvelles Technologies de l'Information (EDA'2008), Juin, 2008

Chimène Fankam, Stéphane Jean, Ladjel Bellatreche and Yamine Aït-Ameur, Extending the ANSI/SPARC Architecture Database with Explicit Data Semantics: An Ontology-Based Approach, Second European Conference on Software Architecture(ECSA), edited by LNCS Springer, September, 2008, pp. 318-321

Chimène Fankam, Stéphane Jean, Guy Pierra and 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

chimene FANKAM, Ladjel BELLATRECHE and Guy PIERRA, OntoDB2 : Support of Multiple Ontology Models within Ontology Based Database, 11th International Conference on Extending Database Technology (EDBT'08) Ph.D. Workshop, Mars, 2008, pp. Nantes France

Dung Nguyen Xuan, Ladjel Bellatreche and Guy Pierra, OntoDaWa : un système d’intégration à base ontologique de sources de données autonomes et évolutives, Ingénierie des Systèmes d'Information (ISI), vol. 13(2), 2008, pp. 97-125

Yamine Aït-Ameur, Ladjel Bellatreche and Guy Pierra, Modélisation à base ontologique en ingénierie. Principes et applications, in 8th International Symposium on Programming and Systems (ISPS'2007), May, 2007

Nabil Belaid, Ladjel Bellatreche, Yamine Ait-Ameur and Guy Pierra, Intégration de sources à base ontologique : architecture en réseau VS architure en étoile, Plate-Forme AFIA: Atelier Thématique GDR I3 sur Ontologies et Gestion de l'hétérogénéité sémantique (OGHS), Juillet, 2007, pp. 9-20

Ladjel Bellatreche, Selection of Redundant and non Redundant Optimization Structures in VLDBs, 3rd International Workshop on Data Management in Global Data Repositories (GRep' 2007), edited by IEEE Computer Society Press, September, 2007

Ladjel Bellatreche, Kamel Boukhalfa and Mukesh Mohania, Pruning Search Space of Physical Database Design, 18th International Conference on Database and Expert Systems Applications (DEXA'07) , edited by LNCS, September, 2007, pp. 479-488

Ladjel Bellatreche, Patrick Marcel and Arnaud Giacometti, Entrepôts de Données et Analyse en ligne (EDA'07), , Editions Cépaduès , Juin, 2007

Ladjel Bellatreche, Rokia Missaoui, Hamid Necir and Habiba Drias, Selection and Pruning Algorithms for Bitmap Index Selection Problem using Data Mining , 9th International Conference on Data Warehousing and Knowledge Discovery (DaWaK '07 ), edited by LNCS, September, 2007, pp. 221-230

Ladjel Bellatreche and Guy Pierra, OntoAPI: An Ontology-based Data Integration Approach by an a Priori Articulation of Ontologies, 4th International Workshop on P2P Data Management, Security and Trust (PDMST'07) , vol. Proc. of 18th International Conference on Database and Expert Systems Applications (DEXA 2007) , edited by IEEE Computer Society Press, September, 2007, pp. 799-803

Hondjack Dehainsala, Guy Pierra and Ladjel Bellatreche, OntoDB: An Ontology-Based Database for Data Intensive Applications, In the 12th International Conference on Database Systems for Advanced Applications (DASFAA'07), edited by Springer's Lecture Notes in Computer Science, Bangkok - Thailand, April, 2007, pp. 497-508

Hondjack Dehainsala, Guy Pierra, Ladjel Bellatreche and Yamine Aït-Ameur, Conception de bases de données à partir d'ontologies de domaine : Application aux bases de données du domaine technique, 1ères Journées Francophones sur les Ontologies (JFO'07), Octobre, 2007

Stéphane Jean, Hondjack Dehainsala, Dung Nguyen Xuan, Guy Pierra, Ladjel Bellatreche and Yamine Aït-Ameur, OntoDB: It is Time to Embed your Domain Ontology in your Database, Database Systems for Advanced Applications (DASFAA'07) (Demo Paper), LNCS, 2007, pp. 1119-1122

Hamid Necir, Ladjel Bellatreche and Rokia Missaoui, DynaClose : Une approche de fouille de données pour la sélection des index de jointure binaires dans les entrepôts de données , 3es Journées Francophones sur les Entrepôts de Données et analyse en Ligne (EDA’07), edited by RNTI, Juin, 2007

Guy Pierra, Yamine Aït-Ameur, Ladjel Bellatreche, Hondjack Dehainsala, Stéphane Jean, Chimène Fankam and Dung Nguyen Xuan, Données à base ontologique: gestion, interrogation, intégration, Première édition des Journées Francophones sur les Ontologies (JFO 2007), Octobre, 2007

Elhoussaine Ziyati, Kamel Boukhalfa and Ladjel Bellatreche, La contribution des structures d'optimisation non redondantes dans la conception physique des entrepôts de données, in 8th International Symposium on Programming and Systems (ISPS'2007), Mai, 2007

Ladjel Bellatreche, La conception physique des data warehouses, Conférence Internationale sur l'Informatique et ses Applications (CIIA'06), 1-20, Mai, 2006

Ladjel Bellatreche, Kamel Boukhalfa and Hassan Ismail Abdalla, SAGA: A Combination of Genetic and Simulated Annealing Algorithms for Physical Data Warehouse Design, in Proceedings of 23rd British National Conference on Databases(BNCOD'06)(4042), edited by Lecture Notes in Computer Science (LNCS), Queen's University Belfast, Northern Ireland, July, 2006, pp. 212-219

Ladjel Bellatreche, Dung Nguyen Xuan, Guy Pierra and Hondjack Dehainsala, Contribution of Ontology-based Data Modeling to Automatic Integration of Electronic Catalogues within Engineering Databases, Computers in Industry Journal 57 (8-9), pp. 711-724, 2006

Kamel Boukhalfa and Ladjel Bellatreche, Combinaison des algorithmes génétique et de recuit simulé pour la conception physique des entrepôts de données, in the proceedings of the Congrès d'Informatique Des Organisations et Systèmes D'Information et de Déçision (INFORSID’2006), fragmentation, entrepôt de données, algorithme génétique, recuit simulé, Juin, 2006

Kamel Boukhalfa and Ladjel Bellatreche, Sélection de schéma de fragmentation horizontale dans les entrepôts de données : formalisation et algorithmes, Revue d'Ingénierie des Systèmes d'Information (ISI) , vol. 11(6/2006), Novembre, 2006, pp. 55-82

Kamel Boukhalfa, Ladjel Bellatreche and Zaia Alimazighi, Un algorithme de sélection des vues matérialisées et d'index de jointure dans les entrepôts de données, Ateliers des Systèmes Décisionnels (ASD'06), sélection des vues matérialiser, index avancés, algorithmes génétiques, décembre, 2006

Hondjack Dehainsala, Guy Pierra and Ladjel Bellatreche, Managing Instance Data in Ontology-based Databases, LISI-ENSMA, LISI/ENSMA, Téléport 2, 1, ave. Clément Ader 86960 Futuroscope - France, 003, Aout, 2006

Hondjack Dehainsala, Guy Pierra and Ladjel Bellatreche, Benchmarking Data Schemes of Ontology Based Databases, Proceeding of On the Move to Meaningful Internet Systems 2006 (OTM'06) : ODBASE conference, vol. 1, 4277, edited by Lecture Notes in Computer Science, Novembre, 2006, pp. 48-49

Hassina Mouloudi, Ladjel Bellatreche, Arnaud Giacometti and Patrick Marcel, Personalization of MDX Queries, Bases de Données Avancées (BDA'06), Octobre, 2006

Dung Nguyen Xuan, Ladjel Bellatreche and Guy Pierra, Un modèle à base ontologique pour la gestion de l'évolution asynchrone des entrepôts de données., MOSIM'06 (Modélisation, Optimisation et Simulation des Systèmes : Défis et Opportunités), pp. 1682-1691, Rabat, Maroc, 3 - 5 avril, 2006

Dung NGUYEN XUAN, Ladjel BELLATRECHE and Guy PIERRA, A Versioning Management Model for Ontology-Based Data Warehouses, 8th International Conference on Data Warehousing and Knowledge Discovery (DaWak '06), pp. 195-206, Lecture Notes in Computer Science (LNCS), 2006

Dung Nguyen Xuan, Ladjel Bellatreche and Guy Pierra, Ontology Evolution and Source Autonomy in Ontology-based Data Warehouses, proc. 2ème Journée Francophone sur les Entrepôts de Données et analyse en Ligne (EDA’06), edited by RNTI, Juin, 2006, pp. 55-76

Elhoussaine Ziyati and Ladjel Bellatreche, Sélection de schéma de fragmentation mixte dans les entrepôts de données, Ateliers des Systèmes Décisionnels (ASD'06), décembre, 2006

Ladjel Bellatreche and Kamel Boukhalfa, Une répartition statique et dynamique de l'espace entre les vues matérialisées et les index dans les entrepôts de données, International Symposium on Programming and Systems (ISPS'05), USTHB - Alger, 2005

Ladjel Bellatreche and Kamel Boukhalfa, An Evolutionary Approach to Schema Partitioning Selection in a Data Warehouse Environment , 7th International Conference on Data Warehousing and Knowledge Discovery (DAWAK'05)(3589), edited by Lecture Notes in Computer Science (LNCS), August, Springer-Verlag, 2005

Ladjel Bellatreche and Kamel Boukhalfa, La fragmentation dans les entrepôts de données : une approche basée sur les algorithmes génétiques , Revue des Nouvelles Technologies de l'Information (EDA'2005), Juin, 2005, pp. 141-160

Ladjel Bellatreche, Arnaud Giacometti, Dominique Laurent and Hassina Mouloudi, A Framework for Combining Rule-Based and Cost-Based Approaches to Optimize OLAP Queries , Revue des Nouvelles Technologies de l'Information (EDA'2005), 2005, pp. 177-196

Ladjel Bellatreche, Arnaud Giacometti, Dominique Laurent and Hassina Mouloudi, A personalization framework for OLAP queries, ACM 8th International Workshop on Data Warehousing and OLAP, Novembre, 2005, pp. 9-18

Guy Pierra, Hondjack Dehainsala, Yamine Aït-Ameur and Ladjel Bellatreche, Base de données à base ontologique : principe et mise en œuvre, Ingénierie des systèmes d'information, 2005

Ladjel Bellatreche and Mukesh Mohania, Introduction to Physical Data warehousing Design, Encyclopedia of Data Warehousing and Mining , 2004

Ladjel Bellatreche, Guy Pierra, Nguyen Xuan Dung and Hondjack Dehainsala, An a Priori Approach for Automatic Integration of Heterogeneous and Autonomous Data Sources, LISI-ENSMA, 04-003, 2004

Ladjel Bellatreche, Guy Pierra, Dung Nguyen Xuan and Hondjack Dehainsala, Intégration de sources de données autonomes par articulation a priori d’ontologies, XXII-ème congrès INFORSID, edited by Inforsid, Biarritz, France, IUT de Bayonne, Mai, 2004, pp. 283-298

Ladjel Bellatreche, Guy Pierra, Dung Nguyen Xuan, Hondjack Dehainsala and Yamine Ait-Ameur, An a Priori Approach for Automatic Integration of Heterogeneous and Autonomous Databases, 15 th International Conference on Database and Expert Systems Applications (DEXA'04), pp. 475-485, Lecture Notes in Computer Science (LNCS), Zaragoza, Spain, Aout, 2004

Ladjel Bellatreche, Michel Schneider, Mukesh Mohania and Hervé Lorinquer, Bringing Together Partitioning, Materialized Views and Indexes to Optimize Performance of Relational Data Warehouses , 6th International Conference on Data Warehousing and Knowledge Discovery(3181), edited by Lecture Notes in Computer Science (LNCS), Zaragoza, Spain, September, 2004, pp. 15-25

Guy PIERRA, Hondjack DEHAINSALA, Yamine AIT-AMEUR, Ladjel BELLATRECHE, Jérôme CHOCHON and Mourad EL-HADJ MIMOUNE, Base de Données à Base Ontologique : le modèle OntoDB, LISI-ENSMA, 04-002, 2004

Guy PIERRA, Hondjack DEHAINSALA, Yamine AIT-AMEUR, Ladjel BELLATRECHE, Jérôme CHOCHON and Mourad EL-HADJ MIMOUNE., Base de Données à Base Ontologique : le modèle OntoDB, 20 èmes Journées Bases de Données Avancées (BDA 2004), edited by J. Lemaitre, 2004, pp. 263-286

Ladjel Bellatreche, Techniques d'optimisation des requêtes dans les data warehouses, Sixth International Symposium on Programming and Systems, 2003, pp. 81-98

Ladjel Bellatreche, Guy Pierra, Dung Nguyen Xuan and Hondjack Dehainsala, An Automated Information Integration Technique using an Ontology-based, Proceedings of CE'2003, Special track on Data Integration in Engineering, Madeira, Portugal, edited by R. Jardim-Gonçalves and J. Cha and A. Steiger-Garçao, Madeira, Portugal, UNINOVA, A.A. Balkema, July, 2003, pp. 217-224

Ladjel Bellatreche, Kamalakar Karlapalem and Ana Simonet, Algorithms and Support for Horizontal Class Partitioning in Object-Oriented Databases, Distributed and Parallel Databases , vol. 8(2), Avril, 2002, pp. 155-179

Ladjel Bellatreche, Michel Schneider, Mukesh Mohania and Bharat Bhargava, PartJoin: An Efficient Storage and Query Execution for Data Warehouses , Data Warehousing and Knowledge Discovery (DAWAK)(2454), ISBN 3-540-44123-9 , edited by Lecture Notes in Computer Science, septembre, 2002, pp. 296-306

Ladjel Bellatreche, Kamalakar Karlapalem and Mukesh Mohania, Some Issues in Design of Data Warehousing Systems, Developing Quality Complex Data Bases Systems: Practices, Techniques, and Technologies, Dr. Shirley A. Becker, Idea Group Publishing, 2001

Mukesh Mohania, Yahiko Kambayashi, A. Min Tjoa, Roland Wagner and Ladjel Bellatreche, Trends in Database Research, Database and Expert Systems Applications(2113), edited by Lecture Notes in Computer Science Springer , septembre, 2001, pp. 984-988

Ladjel Bellatreche, Logical and Physical Design in Data Warehousing Environments, EDBT 2000 PhD Workshop, Mars, 2000

Ladjel Bellatreche, Utilisation des vues matérialisées, des index et de la fragmentation dans la conception logique et physique d’un entrepôt de données, Thesis, Université Blaise Pascal – Clermont Ferrand, décembre, 2000

Ladjel Bellatreche, Une Méthodologie de Fragmentation dans les Entrepôts de Données, 16ème Congrès d'Informatique des Organisations et Systèmes d'Information et de Décision (INFORSID'00), May, 2000, pp. . 245-260

Ladjel Bellatreche, Kamalakar Karlapalem and Qing Li, Evaluation of Materialized View Indexing in Data Warehousing Environments, , Second International Conference on Data Warehousing and Knowledge Discovery (DAWAK'00), septembre, 2000, pp. 57-66

Ladjel Bellatreche, Kamalakar Karlapalem, Mukesh Mohania and Michel Schneider, What Can Partitioning Do for Your Data Warehouses and Data Marts? , International Database Engineering and Applications Symposium(IDEAS'2000), 2000, pp. 437-446

Ladjel Bellatreche, Kamalakar Karlapalem and Basak Bharat, Query-Driven Horizontal Class Partitioning in Object-Oriented Databases, 9th International Conference on Databases and Expert Systems (DEXA'98)(1460), edited by Lecture Notes in Computer Science , August, 1998, pp. 692-701

Ladjel Bellatreche, Kamalakar Karlapalem and Qing Li, An Iterative Approach for Rules and Data Allocation in Distributed Deductive Database Systems, ACM CIKM International Conference on Information and Knowledge Management, Novembre, 1998, pp. 356-363

Ladjel Bellatreche, Kamalakar Karlapalem and Qing Li, Complex Methods and Class Allocation in Distributed Object-Oriented Databases, 5th International Conference on Object Oriented Information Systems (OOIS'98), septembre, 1998, pp. 239-256

Ladjel Bellatreche, Kamalakar Karlapalem and Ana Simonet, Query optimization using horizontal class partitioning in object oriented databases, INFORSID'98, May, 1998, pp. 405-423

Ladjel Bellatreche, Karlapalem Karlapalem and Qing Li, Derived Horizontal Class Partitioning in OODBSs: Design Strategy, Analytical Model and Evaluation, in the 17th International Conference on Entity Relationship Approach (ER'98)(1507), edited by Lecture Notes in Computer Science , Novembre, 1998, pp. 465-479

Ladjel Bellatreche, Kamalakar Karlapalem and Ana Simonet, Horizontal Class Partitioning in Object-Oriented Databases, 8th International Conference on Database and Expert Systems Applications (DEXA'97)(1308), edited by LNCS, September, 1997, pp. 58-67

Ladjel Bellatreche and Ana Simonet, Horizontal Fragmentation in Distributed Object Database Systems, hird International ACPC Conference with Special Emphasis on Parallel Databases and Parallel I/O (ACPC'96)(1127), edited by LNCS, Klagenfurt, Austria, September, 1996, pp. 223-226

Ladjel Bellatreche, Ana Simonet and Michel Simonet, Vertical Fragmentation in Distributed Object Database Systems with Complex Attributes and Methods, eventh International Workshop on Database and Expert Systems Applications ( DEXA '96), edited by IEEE-CS Press, September, 1996, pp. 15-21

Laboratoire d'Informatique Scientifique et Industrielle

Ladjel BELLATRECHE

Ecole Nationale Supérieure de Mécanique et d'Aérotechnique
Laboratoire d'Informatique Scientifique et Industrielle

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