Word association norms, mutual information, and lexicography
Computational Linguistics
Search improvement via automatic query reformulation
ACM Transactions on Information Systems (TOIS) - Special issue on research and development in information retrieval
SIGIR '92 Proceedings of the 15th annual international ACM SIGIR conference on Research and development in information retrieval
Experiments in automatic statistical thesaurus construction
SIGIR '92 Proceedings of the 15th annual international ACM SIGIR conference on Research and development in information retrieval
Use of syntactic context to produce term association lists for text retrieval
SIGIR '92 Proceedings of the 15th annual international ACM SIGIR conference on Research and development in information retrieval
SIGIR '93 Proceedings of the 16th annual international ACM SIGIR conference on Research and development in information retrieval
Query expansion using lexical-semantic relations
SIGIR '94 Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval
Query expansion using local and global document analysis
SIGIR '96 Proceedings of the 19th annual international ACM SIGIR conference on Research and development in information retrieval
Implementation of the SMART Information Retrieval System
Implementation of the SMART Information Retrieval System
Incorporating quality metrics in centralized/distributed information retrieval on the World Wide Web
SIGIR '00 Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval
Exploiting a controlled vocabulary to improve collection selection and retrieval effectiveness
Proceedings of the tenth international conference on Information and knowledge management
Automatic query wefinement using lexical affinities with maximal information gain
SIGIR '02 Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval
Exploiting Manual Indexing to Improve Collection Selection and Retrieval Effectiveness
Information Retrieval
A Methodology to Retrieve Text Documents from Multiple Databases
IEEE Transactions on Knowledge and Data Engineering
Assessing the term independence assumption in blind relevance feedback
Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval
Enhancing semantic digital library query using a content and service inference model (CSIM)
Information Processing and Management: an International Journal
SDQE: towards automatic semantic query optimization in P2P systems
Information Processing and Management: an International Journal - Special issue: Formal methods for information retrieval
Keyphrase extraction-based query expansion in digital libraries
Proceedings of the 6th ACM/IEEE-CS joint conference on Digital libraries
Updating ontologies in the legal domain
ICAIL '05 Proceedings of the 10th international conference on Artificial intelligence and law
P-TAG: large scale automatic generation of personalized annotation tags for the web
Proceedings of the 16th international conference on World Wide Web
SLOQUE: slot-based query expansion for complex questions
Proceedings of the ACM first workshop on CyberInfrastructure: information management in eScience
On the conceptual tag refinement
Proceedings of the 2008 ACM symposium on Applied computing
Learning semantic relatedness from term discrimination information
Expert Systems with Applications: An International Journal
Managing Word Mismatch Problems in Information Retrieval: A Topic-Based Query Expansion Approach
Journal of Management Information Systems
Information Systems
Information Systems
Bootstrapping distributional feature vector quality
Computational Linguistics
SDQE: towards automatic semantic query optimization in P2P systems
Information Processing and Management: an International Journal - Special issue: Formal methods for information retrieval
Using evidence based content trust model for spam detection
Expert Systems with Applications: An International Journal
Directional distributional similarity for lexical inference
Natural Language Engineering
Large Scale Semantic Access to Content (Text, Image, Video, and Sound)
A Survey of Automatic Query Expansion in Information Retrieval
ACM Computing Surveys (CSUR)
A novel resource description based approach for clustering peers
WAIM'05 Proceedings of the 6th international conference on Advances in Web-Age Information Management
Using NLP techniques to identify legal ontology components: concepts and relations
Law and the Semantic Web
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Searching online text collections can be both rewarding and frustrating. While valuable information can be found, typically many irrelevant documents are also retrieved, while many relevant ones are missed. Terminology mismatches between the user's query and document contents are a main cause of retrieval failures. Expanding a user's query with related words can improve search performances, but finding and using related words is an open problem. This research uses corpus analysis techniques to automatically discover similar words directly from the contents of the databases which are not tagged with part-of-speech labels. Using these similarities, user queries are automatically expanded, resulting in conceptual retrieval rather than requiring exact word matches between queries and documents. We are able to achieve a 7.6% improvement for TREC 5 queries and up to a 28.5% improvement on the narrow-domain Cystic Fibrosis collection. This work has been extended to multidatabase collections where each subdatabase has a collection-specific similarity matrix associated with it. If the best matrix is selected, substantial search improvements are possible. Various techniques to select the appropriate matrix for a particular query are analyzed, and a 4.8% improvement in the results is validated.