Publications
    2009

• R. Varadarajan, V. Hristidis, L. Raschid, M-E Vidal, L. Ibanez, H. Rodriguez, "Flexible and Efficient Qyerying and Ranking on Hyperlinked Data Sources". Accepted on EDBT 2009.
  

    2008

• Nadia Yacoubi; Zoe Lacroix; Vidal, M. "BiOnMap: a deductive approach for resource discovery". Best workshop paper award. In Proceedings of the First International Workshop on REsource Discovery (RED 2008). In conjunction with 10th International Conference on Information Integration and Web-based Applications & Services (iiWAS 2008)
  
• Nadia Yacoubi; Zoe Lacroix; Vidal, M. "A Deductive Approach for Resource Interoperability and Well-Defined Workflows". SWWS 2008. LECTURE NOTES IN COMPUTER SCIENCE. 2008.
• Elsa Tovar; Vidal, M. "Magic Rewritings for Efficiently Processing Reactivity on Web Ontologies". ODBASE 2008. LECTURE NOTES IN COMPUTER SCIENCE. 2008.
  
• Ruckhaus, E.; Maria Esther Vidal; Ruiz E.; Sierra J.. "A Cost-based Optimizer for SPARQL Queries". Poster Section. European Semantic Web Conference. Tenerife, España. June 2008.
• Eduardo Blanco, Yudith Cardinale, Maria Esther Vidal, Jesus Graterol. "Techniques to Produce Web Service Compositions". WSCA-Workshop, Hawai, July 2008.
• Eduardo Blanco, Yudith Cardinale, Maria Esther Vidal, "techniques to Produce Good Service Compositions on the Semantic Web". PhD Symposium 2008, co-located with the 5th Annual European Semantic Web Conference, ESWC 2008
  
• Elsa Tovar; Maria Esther Vidal, "PreOptimizacion de Consultas en Fuentes de Datos con Capacidades Limitadas". INTERCIENCIA. 2008. Indexed by SCI.
• Ruckhaus, E.; Maria Esther Vidal ; Ruiz Eduardo. "Query Optimization in the Semantic Web". THEORY AND PRACTICE OF LOGIC PROGRAMMING. 2008. Indexed by SCI.
• 
  

    2007

• Amadis Martinez; Maria Esther Vidal. "A Directed Hypergraph Model for RDF".  Knowledge Web PhD Symposium 2007, co-located with the 4th Annual European Semantic Web Conference. Innsbruck, Austria.
• Louiqa Raschid; Maria Esther Vidal; Yao Wu; Felix Naumann; Jens Bleiholder. "Answering Top K Queries Efficiently with Overlap of Answers in Sources or Source Paths". Sixth International Workshop on Information Integration on the Web. In conjunction with AAAI-07. Vancouver, Canadá. July 2007.
• Amadis Martinez; Maria Esther Vidal. "A Directed Hypergraph Formal Model for RDF". SWDB-ODBIS07: Joint ODBIS & SWDB workshop on Semantic Web, Ontologies, Databases-Colocated with VLDB2007. Vienna, Austria. September 2007.
• Maria Esther Vidal, Edna Ruckhaus.; Ruiz Eduardo. "OneQL: Efficiently Querying the Health Domain in the Semantic Web". XV Winter Course STANDARS IN TELEMEDICINE. Tenerife, España. Marzo 2007. CD: "Proceedings XV Winter Course STANDARS IN TELEMEDICINE". pp. 87 - 92
• Edna Ruckhaus, Maria-Esther Vidal, Eduardo Ruiz: OnEQL: An Ontology Efficient Query Language Engine for the Semantic Web. ALPSWS 2007
• Nadia Yacoubi Ayadi, Zoé Lacroix, Maria-Esther Vidal, Edna Ruckhaus: Deductive Web Services: An Ontology-Driven Approach for Service Interoperability in Life Science. OTM Workshops (2) 2007: 1338-1347
• Edna Ruckhaus, Eduardo Ruiz, Maria-Esther Vidal: Query Evaluation and Optimization in the Semantic Web CoRR abs/0711.2087: (2007)

    2006

• Yolifé Arvelo, Blai Bonet, Maria-Esther Vidal: Compilation of Query-Rewriting Problems into Tractable Fragments of Propositional Logic. AAAI 2006
• Zoé Lacroix, Louiqa Raschid, Maria-Esther Vidal: Semantic Model to Integrate Biological Resources. ICDE Workshops 2006: 63
• Barbara A. Eckman, Terry Gaasterland, Zoé Lacroix, Louiqa Raschid, Ben Snyder, Maria-Esther Vidal: Implementing a Bioinformatics Pipeline (BIP) on a Mediator Platform: Comparing Cost and Quality of Alternate Choices. ICDE Workshops 2006: 67
• Maria-Esther Vidal, Louiqa Raschid, Natalia Marquez, Marelis Cardenas, Yao Wu: Query Rewriting in the Semantic Web7. ICDE Workshops 2006: 7
• Louiqa Raschid, Yao Wu, Woei-Jyh Lee, Maria-Esther Vidal, Panayiotis Tsaparas, Padmini Srinivasan, Aditya Kumar Sehgal: Ranking target objects of navigational queries. WIDM 2006: 27-34
• Sarah Cohen Boulakia, Susan B. Davidson, Christine Froidevaux, Zoé Lacroix, Maria-Esther Vidal: Path-based Systems to Guide Scientists in the Maze of Biological Data Sources. J. Bioinformatics and Computational Biology 4(5): 1069-1096 (2006).
• Edna Ruckhaus , Maria-Esther Vidal and Eduardo Ruiz "Query Evaluation and Optimization in the Semantic Web". Best Paper Award. International Workshop on Applications of Logic Programming in the Semantic Web and Semantic Web Services. 2006.
  

    2005

• Zoé Lacroix, Kaushal Parekh, Maria-Esther Vidal, Marelis Cardenas, Natalia Marquez, Louiqa Raschid: BioNavigation: Using Ontologies to Express Meaningful Navigational Queries Over Biological Resources. CSB Workshops 2005: 137-138
• Marlene Goncalves, Maria-Esther Vidal: Top-k Skyline: A Unified Approach. OTM Workshops 2005: 790-799
• George A. Mihaila, Felix Naumann, Louiqa Raschid, Maria-Esther Vidal: A Data Model and Query Language to Explore Enhanced Links and Paths in Life Science Sources. WebDB 2005: 133-138
• Zoé Lacroix, Kaushal Parekh, Maria-Esther Vidal, Marelis Cardenas, Natalia Marquez: BioNavigation: Selecting Optimum Paths Through Biological Resources to Evaluate Ontological Navigational Queries. DILS 2005: 275-283
• Marlene Goncalves, Maria-Esther Vidal: Preferred Skyline: A Hybrid Approach Between SQLf and Skyline. DEXA 2005: 375-384

    2004

• Zoé Lacroix, Kaushal Parekh, Louiqa Raschid, Maria-Esther Vidal: Navigating through the Biological Maze. CSB 2004: 594-595
• Zoé Lacroix, Kaushal Parekh, Maria-Esther Vidal: Evaluation Paths to Express Scientific Queries. DEXA Workshops 2004: 371-375
• Zoé Lacroix, Tiffany Morris, Kaushal Parekh, Louiqa Raschid, Maria-Esther Vidal: Exploiting Multiple Paths to Express Scientific Queries. SSDBM 2004: 357-
• Maria-Esther Vidal, Louiqa Raschid, Julián Mestre: Challenges in Selecting Paths for Navigational Queries: Trade-Off of Benefit of Path versus Cost of Plan. WebDB 2004: 61-66
• Jens Bleiholder, Zoé Lacroix, Hyma Murthy, Felix Naumann, Louiqa Raschid, Maria-Esther Vidal: BioFast: Challenges in Exploring Linked Life Science Sources. SIGMOD Record 33(2): 72-77 (2004)
• Zoe Lacroix, Louiqa Raschid, María Esther Vidal, "Efficient Techniques to Explore and Rank Paths in Life Science Data Sources". International WorkShop in Data Integration in Life Sources (DILS 04). Leigzip, Alemania. LECTURE NOTES IN COMPUTER SCIENCE. 2004. Marzo 2004.

    2003

• Edna Ruckhaus, María Esther Vidal, "XWebSOGO: An Ontology Language to Describe and Query Web Sources".  In Proceedings of the Fifth Workshop on  Web Information and Data Management (WIDM'03). In conjunction with the International Conference on Information and Knowledge Management (ACM CIKM'03). Nov, 2003.
• Zoe Lacroix, Felix Nauuman, Louiqa Raschid, María Esther Vidal, "Exploring Life Sciences Data Sources". In Proceedings of the IJCAI-03 Wokshop on Information Integration on the Web, 2003.
• Edna Ruckhaus, María Esther Vidal, "WebSOGO: A Global Ontology for Describing Web Sources". In Proceedings of the ACM Symposium on Applied Computing, SAC 2003.

    2002

• Vladimir Zadorozhny,  Louiqa Raschid, María Esther Vidal, ``Efficient Evaluation of Queries in a Mediator for WebSources''.  In Proceedings of the International Conference on Management of Data, ACM SIGMOD 2002 .

    2001

• George Mihaila, Louiqa Raschid, María Esther Vidal. ``Source Selection and Ranking in the WebSemantics Architecture Using Quality of Data Metadata''. Advances in Computers Vol 55, 2001.  Book Chapter 3.

    2000

• George Mihaila, Louiqa Raschid, María Esther Vidal. ``Using Quality of Data Metadata for Source Selection and Ranking''. Proceeding of Third International Workshop on Web and Databases (WebDB00). In conjuntion with ACM SIGMOD 2000.
• Vladimir Zadorozhny, Laura Bright, Louiqa Raschid, Tolga Urhan,  María Esther Vidal,``Web Query Optimizer''.  Proceedings of the 16th  International Conference on Data Engineering (ICDE) 2000 (Prototype Demostration). IEEE Computer Society Press, 2000.

    1999

• Laura Bright, Jean Robert Gruser, Louiqa Raschid, María Esther Vidal. ``A Wrapper Generation toolkit to specify and construct Wrappers for Web Accessible Sources(WebSources)''. International Journal on Computer Systems Special Issue on Semantics in the WWW. Vol 14, Number2, pags 83-97, March 1999.
• George Mihaila, Louiqa Raschid, María Esther Vidal. ``Querying Quality of Data Metadata''. Proceeding of the Third IEEE Computer Society Metadata Conference. 1999.
• Mike Franklin,  George Mihaila, Louiqa Raschid, Tolga Urhan, María Esther Vidal, Vladimir Zadorozhny. ``Searching and Querying Wide-Area Distributed Collections'' Proceedings of the Russian National Conference on Digital Libraries, St. Petersburg, Russia, Oct 1999.

    1998

• María Esther Vidal, Louiqa Raschid, Jean Robert Gruser. ``A Meta-Wrapper for Scaling up to Multiple Autonomous Distributed Information Sources'', Proceedings of the  International Conference on Cooperative Information Systems  (CooPIS), Agosto 1998. IEEE Computer Society Press, 1998. ISBN 0-8186-8380-5.
• Jean Robert Gruser, Louiqa Raschid, María Esther Vidal, Laura Bright. ``Wrapper Generation for Web Accessible Data Sources''. Proceedings of the  International Conference on Cooperative Information Systems (CooPIS), Agosto 1998.  IEEE Computer Society Press, 1998. ISBN 0-8186-8380-5.
• Laura Bright, Louiqa Raschid, María Esther Vidal . ``Optimization of Wrappers and Mediators for Web Accessible Data Sources (WebSources)'',  Proceeding of the Workshop on  Web Information and Data Management (WIDM'98). In conjunction with the International Conference on Information and Knowledge Management (ACM CIKM'98). Nov, 1998.

    1995

• María Esther Vidal, Alonso Marquez.  "GRAPHLER: A Graphical Language for the Entity Relationship Data Model". In Proceeding of the 5th International Symposium on System Research, Informatics and Cybernetics. Focus Information Systems Analysis and Synthesis. Baden-Baden, Germany, 1995, pag 48-52.

     1994

• María Esther Vidal, Alonso Marquez. `` GRA-FER: Lenguaje Grafico de Interrogacion de Esquemas ER''.  XXII Conferencia Latinoamericana de Informatica, Mexico,  1994.
• Jose Anciano, Nunzio Savino, María Esther Vidal. ``Algoritmo de Traduccion de Esquemas ERE a esquemas Relacionales''.   XXII Conferencia Latinoamericana de Informatica, Mexico,  1994.

    1993

• Jose Garcia, Alvaro Rebon, María Esther Vidal.  "Sistema Generador de Software Educativo", VI Conferencia Nacional de Inteligencia Artificial CNIASE'93, Barquisimeto, Venezuela.

    1992

• María Esther Vidal, Alonso Marquez. "UNA DEFINICION FORMAL DEL MODELO ENTIDAD RELACION EXTENDIDO + DF".   XXI Conferencia Latinoamericana de Informatica, PANEL'92, Spain, 1992.

     1991

• María Esther Vidal, Leonid Tineo" , "Definicion Formal de la Semantica de las Abstracciones", V Conferencia Nacional de Inteligencia Artificial, CNIASE'92, Caracas, Venezuela.
• Augusto Giancola, Francisco Marcano, Leonid Tineo, María Esther Vidal, Enzo Chiariotti."SOOM un Modelo Semantico para Bases de Datos". Proceeding de la  XX Conferencia Latinoamericana de Informatica, PANEL'91 Caracas, Venezuela, 1991.
• Alonso Marquez, María Esther Vidal. "FORMAS NORMALES MODELO ENTIDAD RELACION ",Proceeding de la XX Conferencia Latinoamericana de Informatica, PANEL'91 Caracas, Venezuela, 1991.