All publications sorted by recency
| , and , A study of factors affecting the utility of implicit relevance feedback, in: Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval, Salvador, Brazil, pages 35--42, ACM, 2005 |
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| , , , , and , Graph-based concept identification and disambiguation for enterprise search, in: Proceedings of the 19th international conference on World wide web, Raleigh, North Carolina, USA, pages 171--180, ACM, 2010 |
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| , and , Document Expansion Based on WordNet for Robust IR, in: Coling 2010: Posters, pages 9--17, Coling 2010 Organizing Committee, 2010 |
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| , Biomedical ontologies in action: role in knowledge management, data integration and decision support. (2008), in: Yearbook of medical informatics(67--79) |
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| , , , and , WikiWalk: random walks on Wikipedia for semantic relatedness, in: Proceedings of the 2009 Workshop on Graph-based Methods for Natural Language Processing, Suntec, Singapore, pages 41--49, Association for Computational Linguistics, 2009 |
| , and , A general optimization framework for smoothing language models on graph structures, in: Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, Singapore, Singapore, pages 611--618, ACM, 2008 |
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| , , , , , , , and , iSMART: Ontology-based Semantic Query of CDA Documents, in: AMIA Annu Symp Proc. 2009, pages 375--379, American Medical Informatics Association, 2009 |
| , Twenty-five years of end-user searching, Part 2: Future research directions (2007), in: J. Am. Soc. Inf. Sci. Technol., 58(1123--1130) |
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| and , Knowledge in the head and on the web: using topic expertise to aid search, in: Proceeding of the twenty-sixth annual SIGCHI conference on Human factors in computing systems, Florence, Italy, pages 39--48, ACM, 2008 |
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| , On the query refinement in the ontology-based searching for information (2005), in: Information Systems, 30:7(543--563) |
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| and , Using WordNet and Lexical Operators to Improve Internet Searches (2000), in: IEEE Internet Computing, 4:1(34--43) |
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| , , and , Knowledge-assisted document retrieval: II. The retrieval process (1987), in: Journal of the American Society for Information Science, 38:2(97®C110) |
| and , Ranking Documents with a Thesaurus. (1989), in: JASIS, 40:5(304-310) |
| , , , , and , Interactive thesaurus navigation: intelligence rules ok? (1995), in: J. Am. Soc. Inf. Sci., 46:1(53--59) |
| , , and , Scalable feature selection, classification and signature generation for organizing large text databases into hierarchical topic taxonomies (1998), in: The VLDB Journal, 7:3(163--178) |
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| , Features of similarity (1977), in: Psychological Review, 84(327--352) |
| , , and , Retrieving documents by plausible inference: an experimental study (1989), in: Inf. Process. Manage., 25:6(599--614) |
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| , Information Search tactics (1979), in: Journal of the American Society for Information Science, 30:4(205--214) |
| , and , A knowledge-based approach to online document retrieval system design, in: Proceedings of the ACM SIGART international symposium on Methodologies for intelligent systems, Knoxville, Tennessee, United States, pages 112--120, ACM, 1986 |
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| and , A model of knowledge based information retrieval with hierarchical concept (1990), in: Journal of Documentation, 46:2(113--136) |
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| , , , , , , and , Query expansion via conceptual distance in thesaurus indexed collections (2006), in: Journal of Documentation, 62:4(509--533) |
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| , Effects of Search Experience and Subject Knowledge on the Search Tactics of Novice and Experienced Searchers (1993), in: JASIS, 44:3(161-174) |
| and , Subject knowledge improves interactive query expansion assisted by a thesaurus (2004), in: Journal of Documentation, 60:6(673 - 690) |
| , and , Improving automatic query expansion, in: SIGIR '98: Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval, Melbourne, Australia, pages 206--214, ACM, 1998 |
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| , Automatic query expansion via lexical-semantic relationships (2001), in: J. Am. Soc. Inf. Sci. Technol., 52:5(402--415) |
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| and , Lexical ambiguity and information retrieval (1992), in: ACM Trans. Inf. Syst., 10:2(115--141) |
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| , , , , and , Stuff I've seen: a system for personal information retrieval and re-use, in: SIGIR'03: Proceedings of the 26th ACM SIGIR conference on Research and development in informaion retrieval, Toronto, Canada, pages 72--79, ACM, 2003 |
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| , Mathematical Structures of Language, Wiley, 1968 |
| , Ontology Learning from Text: a Survey of Methods (2005), in: LDV-Forum, 20:2(75--93) |
| and , Ontologies, Taxonomies, Thesauri Learning from Texts, in: Proceedings of the Workshop on the Use of Computational Linguistics in the Extraction of Keyword Information from Digital Library Content, Centre for Computing in the Humanities, Kings College London, 2004 |
| , , , and , Efficient reasoning on large SHIN Aboxes in relational databases, in: Proceedings of the 5th International Workshop on Scalable Semantic Web knowledge Base Systems (SSWS2009), pages 110-125, 2009 |
| , , , and , Efficient query expansion for advertisement search, in: SIGIR '09: Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval, Boston, MA, USA, pages 51--58, ACM, 2009 |
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| , , , and , Semantic annotation, indexing, and retrieval (2004), in: Journal of Web Semantics, 2:1(49--79) |
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| and , TAP: A Semantic Web Test-bed (2003), in: Web Semantics: Science, Services and Agents on the World Wide Web, 1:1(81 - 87) |
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| , , , , , , , , , and , SemTag and seeker: bootstrapping the semantic web via automated semantic annotation, in: WWW '03: Proceedings of the 12th international conference on World Wide Web, Budapest, Hungary, pages 178--186, ACM, 2003 |
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| , and , Relational thesauri in information retrieval (1985), in: Journal of the American Society for Information Science, 36:1(15--27) |
| , An approach to the automatic construction of global thesauri (1990), in: Inf. Process. Manage., 26:5(629--640) |
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| and , Experiments in automatic statistical thesaurus construction, in: SIGIR '92: Proceedings of the 15th annual international ACM SIGIR conference on Research and development in information retrieval, Copenhagen, Denmark, pages 77--88, ACM, 1992 |
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| , Optimal query expansion (QE) processing methods with semantically encoded structured thesauri terminology (2001), in: Journal of the American Society for Information Science and Technology (JASIST), 52:6(487-498) |
| , and , Query expansion using heterogeneous thesauri (2000), in: Information Processing \& Management, 36:3(361 - 378) |
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| , and , Semantic Similarity Search on Semistructured Data with the XXL Search Engine (2005), in: Information Retrieval, 8:4(521--545) |
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| , Using information content to evaluate semantic similarity in a taxonomy, in: IJCAI'95: Proceedings of the 14th international joint conference on Artificial intelligence, Montreal, Quebec, Canada, pages 448--453, Morgan Kaufmann Publishers Inc., 1995 |
| , , and , Algorithmic detection of semantic similarity, in: WWW '05: Proceedings of the 14th international conference on World Wide Web, Chiba, Japan, pages 107--116, ACM, 2005 |
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| , , and , Development and Application of a Metric on Semantic Nets (1989), in: IEEE Transactions on Systems Management and Cybernetics, 19:1(17--30) |
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| and , Foundations of Statistical Natural Language Processing, MIT Press, 1999 |
| , An Ontology for Domain-oriented Semantic Similarity Search on XML Data, in: BTW, pages 217-226, 2003 |
| , and , UMLS concept indexing for production databases: a feasibility study (2001), in: Journal of the American Medical Informatics Association, 8:1(80-91) |
| , Relationships in the organization of knowledge: an overview, in: Relationships in the organization of knowledge, pages 3-18, Kluwer Academic Publishers, 2001 |
| , and , Introduction to Information Retrieval, Cambridge University Press, 2008 |
| and , Improving retrieval performance by relevance feedback (1990), in: Journal of the American Society for Information Science, JASIS, 41:4(288-297) |
| and , Ambiguity resolution while mapping free text to the UMLS Metathesaurus., in: Proceedings of Annual Symposium on Computer Application in Medical Care, pages 240-244, 1994 |
| , Effective mapping of biomedical text to the UMLS Metathesaurus: the MetaMap program, in: Proceedings of AMIA, Annual Symposium, pages 17--21, 2001 |
| , and , Expressive and Flexible Access to Web-Extracted Data: A Keyword-based Structured Query Language, in: Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD, pages to appear, 2010 |
| , User-specified domain knowledge for document retrieval, in: SIGIR '86: Proceedings of the 9th annual international ACM SIGIR conference on Research and development in information retrieval, Palazzo dei Congressi, Pisa, Italy, pages 201--206, ACM, 1986 |
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| , , 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 , Improving the effectiveness of information retrieval with local context analysis (2000), in: ACM Trans. Inf. Syst., 18:1(79--112) |
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| and , A spreading-activation theory of semantic processing. (1975), in: Psychological Review, 82:6(407 - 428) |
| and , Automatic Extraction of Useful Facet Hierarchies from Text Databases, in: ICDE 08: Proceedings of the 2008 IEEE 24th International Conference on Data Engineering, pages 466--475, IEEE Computer Society, 2008 |
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| , The effects of domain knowledge on search tactic formulation (2004), in: J. Am. Soc. Inf. Sci. Technol., 55(246--258) |
| , Reducing the risk of query expansion via robust constrained optimization, in: CIKM, pages 837-846, 2009 |
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| and , A unified optimization framework for robust pseudo-relevance feedback algorithms, in: CIKM, pages 1069-1078, 2010 |
| and , Knowledge-based search tactics (1993), in: Information Processing \& Management, 29:1(29 - 45) |
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| , , , , , , and , A web of concepts, in: Proceedings of the twenty-eighth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems, Providence, Rhode Island, USA, pages 1--12, ACM, 2009 |
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| , and , Concept-based feature generation and selection for information retrieval, in: Proceedings of the 23rd national conference on Artificial intelligence - Volume 2, Chicago, Illinois, pages 1132--1137, AAAI Press, 2008 |
| and , Latent concept expansion using markov random fields, in: Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval, Amsterdam, The Netherlands, pages 311--318, ACM, 2007 |
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| , , and , Selecting good expansion terms for pseudo-relevance feedback, in: Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, Singapore, Singapore, pages 243--250, ACM, 2008 |
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| , 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) |
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| , Query expansion and MEDLINE (1996), in: Inf. Process. Manage., 32:4(431--443) |
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| , Retrieval Feedback in MEDLINE (1996), in: Journal of the American Medical Informatics Association, 3:2(157-167) |
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| , Textpresso: An Ontology-Based Information Retrieval and Extraction System for Biological Literature (2004), in: PLoS Biol, 2:11(e309) |
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| , , , 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) |
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| , and , Query expansion with a medical ontology to improve a multimodal information retrieval system (2009), in: Comput. Biol. Med., 39:4(396--403) |
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| , 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 |
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| 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 |
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| and , Keyword query cleaning (2008), in: Proc. VLDB Endow., 1:1(909--920) |
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| 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 |
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| and , Ontology-based Information Retrieval, in: Proc. of the 14th International Conference on Information and Intelligent systems, IIS 2003, pages 23--28, 2003 |
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| , and , An Ontology-Based Information Retrieval Model, in: The Semantic Web: Research and Applications, pages 455--470, 2005 |
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| , , , , and , KIM - Semantic Annotation Platform, in: International Semantic Web Conference, pages 834-849, 2003 |
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| , and , Ontology-driven document enrichment: principles, tools and applications (2000), in: International Journal of Human-Computer Studies, 52:6(1071--1109) |
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| , and , Query reformulation using automatically generated query concepts from a document space (2006), in: Inf. Process. Manage., 42:2(453--468) |
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| and , Information retrieval on the semantic web: Integrating inference and retrieval, in: In Proceedings of the SIGIR Workshop on the Semantic Web, 2003 |
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| , and , Semantic search, 12th Intl. World Wide Web Conference (WWW 2003), pages 700--709, 2003 |
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| , 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) |
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| , , 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 |
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| , , , , 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 |
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| , , and , Towards a query optimizer for text-centric tasks (2007), in: ACM Trans. Database Syst., 32:4(21) |
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| , and , Optimizing SQL Queries over Text Databases., in: ICDE, pages 636-645, IEEE, 2008 |
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| , , and , Scalable ad-hoc entity extraction from text collections (2008), in: Proc. VLDB Endow., 1:1(945--957) |
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| , , , and , Structured querying of web text: A technical challenge, in: in CIDR, 2007 |
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| , 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 |
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| , and , Ontology-Aided vs. Keyword-Based Web Searches: A Statistical Comparative Analysis, in: RIAO, CID, 2007 |