All publications sorted by recency
| , and , Unifying Class-Based Representation Formalisms (1999), in: J. Artificial Intelligence Research, 11(199-240) |
| , , , , and , SWRL: A Semantic Web Rule Language Combining OWL and RuleML, W3C, 2004 |
| , and , From SHIQ and RDF to OWL: the making of a Web Ontology Language (2003), in: J. Web Sem., 1:1(7-26) |
| and , On Order Dependencies for the Semantic Web, in: 26th International Conference on Conceptual Modeling (ER 2007), pages 293-306, 2007 |
| , , and , Concept Projection in Algebras for Computing Certain Answer Descriptions, in: 22nd International Workshop on Description Logics, CEUR-WS vol. 477, 2009 |
| , , and , On Ordering and Indexing Metadata for the Semantic Web, in: 21st International Workshop on Description Logics, CEUR-WS vol. 353, 2008 |
| , , and , On Ordering Descriptions in a Description Logic, in: 20th International Workshop on Description Logics, pages 123-134, CEUR-WS vol. 250, 2007 |
| , and , Principles of dataspace systems, in: Proceedings of the twenty-fifth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, ACM, pages 9, 2006 |
| , , and , Towards a theory of search queries, in: Int\. Conf\. Database Theory (ICDT), pages 201-211, 2009 |
| and , Applications and Extensions of PTIME Description Logics with Functional Constraints, in: Proc.\ Joint Int.\ Conf.\ on Artificial Intelligence (IJCAI), pages 948-954, 2009 |
| , , and , The Instance Store: DL Reasoning with Large Numbers of Individuals, in: Description Logics, CEUR-WS.org, 2004 |
| , and , The DIG Description Logic Interface, in: In Proc. of International Workshop on Description Logics (DL2003), 2003 |
| and , On Reasoning about Structural Equality in XML: A Description Logic Approach (2005), in: tcs, 336:1(181--203) |
| and , A Semantics and Complete Algorithm for Subsumption in the CLASSIC Description Logic (1994), in: J. of Artificial Intelligence Research, 1(277-308) |
| and , Words or concepts: the features of indexing units and their optimal use in information retrieval, in: Proceedings of the Annual Symposium on Computer Application in Medical Care, pages 685--689, 1993 |
| and , Information retrieval in medicine: The SAPHIRE experience (1995), in: Journal of the American Society for Information Science, 46(743--747) |
| , and , Words, concepts, or both: optimal indexing units for automated information retrieval, in: Proceedings of the Annual Symposium on Computer Application in Medical Care, pages 644--648, 1992 |
| , Expert network: effective and efficient learning from human decisions in text categorization and retrieval, in: SIGIR '94: Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval, Dublin, Ireland, pages 13--22, Springer-Verlag New York, Inc., 1994 |
| , and , Exploiting a large thesaurus for information retrieval, in: Proceedings of RIAO, pages 197--216, 1994 |
| , , and , OHSUMED: an interactive retrieval evaluation and new large test collection for research, in: SIGIR '94: Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval, Dublin, Ireland, pages 192--201, Springer-Verlag New York, Inc., 1994 |
| , and , The effect of adding relevance information in a relevance feedback environment, in: SIGIR '94: Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval, Springer-Verlag New York, Inc., 1994 |
| , , and , Automatic Query Expansion Using SMART: TREC 3, in: TREC, 1994 |
| and , Query expansion using the UMLS Metathesaurus., in: Proceedings of the AMIA Annual Fall Symposium, pages 485-489, 1997 |
| , and , Assessing thesaurus-based query expansion using the UMLS metathesaurus, in: In Proc. of the 2000 American Medical Informatics Association (AMIA) Symposium, pages 344--348, 2000 |
| , Optimal document-indexing vocabulary for MEDLINE (1996), in: Information Processing $\&$ Management, 32:5(503 - 514) |
[DOI] |
| , Query expansion and MEDLINE (1996), in: Inf. Process. Manage., 32:4(431--443) |
[DOI] |
| , Retrieval Feedback in MEDLINE (1996), in: Journal of the American Medical Informatics Association, 3:2(157-167) |
[DOI] |
| , Textpresso: An Ontology-Based Information Retrieval and Extraction System for Biological Literature (2004), in: PLoS Biol, 2:11(e309) |
[DOI] |
| , , , and , Information retrieval on the semantic web, in: CIKM '02: Proceedings of the eleventh international conference on Information and knowledge management, McLean, Virginia, USA, pages 461--468, ACM, 2002 |
| and , Using Medical Test Collection Relevance Judgements to Identify Ontological Relationships Useful for Query Expansion, in: ICDE Workshops, pages 1160, 2005 |
| , and , QUICK: Queries Using Inferred Concepts from Keywords, Technical Report CS-2009-18, University of Waterloo, 2009 |
| , , and , Probabilistic query expansion using query logs, in: WWW '02: Proceedings of the 11th international conference on World Wide Web, pages 325--332, ACM Press, 2002 |
| and , An Association Thesaurus for Information Retrieval, in: RIAO, pages 146-161, 1994 |
| , and , ExpansionTool: Concept-Based Query Expansion and Construction (2001), in: Information Retrieval, 4:3-4(231--255) |
[DOI] |
| , and , Query expansion with a medical ontology to improve a multimodal information retrieval system (2009), in: Comput. Biol. Med., 39:4(396--403) |
[DOI] |
| , and , A practical ontology query expansion algorithm for semantic-aware learning objects retrieval (2008), in: Comput. Educ., 50:4(1240--1257) |
| and , Legal Query Expansion using Ontologies and Relevance Feedback, in: Proceedings of the 2nd Workshop on Legal Ontologies and Artificial Intelligence Techniques, pages 149-160, 2007 |
| , A Comparison of Methods and Techniques for Ontological Query Expansion, in: Metadata and Semantic Research, Communications in Computer and Information Science, Volume 46. ISBN 978-3-642-04589-9. Springer Berlin Heidelberg, 2009, p. 203, pages 203-+, 2009 |
| , , and , Ontology-Based Query Expansion Widget for Information Retrieval, in: Proceedings of the 5th Workshop on Scripting and Development for the Semantic Web (SFSW 2009), 6th European Semantic Web Conference (ESWC 2009), Heraklion, Greece, 2009 |
| , Improving Information Retrieval Effectiveness by Using Domain Knowledge Stored in Ontologies, in: On the Move to Meaningful Internet Systems 2005: OTM Workshops, pages 780--789, 2005 |
[DOI] |
| and , An analysis of ontology-based query expansion strategies, in: Proceedings of Workshop on Adaptive Text Extraction and Mining (ATEM) in the $14^{th}$ European Conference on Machine Learning (ECML), pages 42--49, 2003 |
| and , Personalized Ontology-Based Query Expansion (2008), in: Web Intelligence and Intelligent Agent Technology, IEEE/WIC/ACM International Conference on, 3(256-259) |
| , , and , XOntoRank: Ontology-Aware Search of Electronic Medical Records, in: ICDE, pages 820-831, IEEE, 2009 |
[DOI] |
| and , Keyword query cleaning (2008), in: Proc. VLDB Endow., 1:1(909--920) |
[DOI] |
| and , Concept-Based Information Access, in: ITCC '05: Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC'05) - Volume I, pages 794--799, IEEE Computer Society, 2005 |
[DOI] |
| and , Ontology-based Information Retrieval, in: Proc. of the 14th International Conference on Information and Intelligent systems, IIS 2003, pages 23--28, 2003 |
[URL] |
| , and , An Ontology-Based Information Retrieval Model, in: The Semantic Web: Research and Applications, pages 455--470, 2005 |
[DOI] |
| , , , , and , KIM - Semantic Annotation Platform, in: International Semantic Web Conference, pages 834-849, 2003 |
[URL] |
| , and , Ontology-driven document enrichment: principles, tools and applications (2000), in: International Journal of Human-Computer Studies, 52:6(1071--1109) |
[DOI] |
| , and , Query reformulation using automatically generated query concepts from a document space (2006), in: Inf. Process. Manage., 42:2(453--468) |
[DOI] |
| and , Information retrieval on the semantic web: Integrating inference and retrieval, in: In Proceedings of the SIGIR Workshop on the Semantic Web, 2003 |
[URL] |
| , and , Semantic search, 12th Intl. World Wide Web Conference (WWW 2003), pages 700--709, 2003 |
[URL] |
| , and , An Adaptation of the Vector-Space Model for Ontology-Based Information Retrieval (2007), in: IEEE Trans. on Knowl. and Data Eng., 19:2(261--272) |
[DOI] |
| , , and , ESTER: efficient search on text, entities, and relations, in: SIGIR '07: Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval, Amsterdam, The Netherlands, pages 671--678, ACM, 2007 |
[DOI] |
| , , , , and , NAGA: harvesting, searching and ranking knowledge, in: SIGMOD '08: Proceedings of the 2008 ACM SIGMOD international conference on Management of data, Vancouver, Canada, pages 1285--1288, ACM, 2008 |
[DOI] |
| , , and , Towards a query optimizer for text-centric tasks (2007), in: ACM Trans. Database Syst., 32:4(21) |
[DOI] |
| , and , Optimizing SQL Queries over Text Databases., in: ICDE, pages 636-645, IEEE, 2008 |
[DOI] [URL] |
| , , and , Scalable ad-hoc entity extraction from text collections (2008), in: Proc. VLDB Endow., 1:1(945--957) |
[DOI] |
| , , , and , Structured querying of web text: A technical challenge, in: in CIDR, 2007 |
[URL] |
| , and , EntityRank: searching entities directly and holistically, in: VLDB '07: Proceedings of the 33rd international conference on Very large data bases, Vienna, Austria, pages 387--398, VLDB Endowment, 2007 |
| , Research on Ontology-Driven Information Retrieval., in: OTM Workshops (2), pages 1460-1468, 2006 |
[DOI] |
| , and , Ontology-Aided vs. Keyword-Based Web Searches: A Statistical Comparative Analysis, in: RIAO, CID, 2007 |