Compilers: principles, techniques, and tools
Compilers: principles, techniques, and tools
An approach to natural language for document retrieval
SIGIR '87 Proceedings of the 10th annual international ACM SIGIR conference on Research and development in information retrieval
Using English for indexing and retrieving
Artificial intelligence at MIT expanding frontiers
Phase-based information retrieval
Information Processing and Management: an International Journal
Transition network grammars for natural language analysis
Communications of the ACM
Natural Language Processing: The Plnlp Approach
Natural Language Processing: The Plnlp Approach
ON MEMORY LIMITATIONS IN NATURAL LANGUAGE PROCESSING
ON MEMORY LIMITATIONS IN NATURAL LANGUAGE PROCESSING
A simple rule-based part of speech tagger
ANLC '92 Proceedings of the third conference on Applied natural language processing
Expansion of multi-word terms for indexing and retrieval using morphology and syntax
ACL '98 Proceedings of the 35th Annual Meeting of the Association for Computational Linguistics and Eighth Conference of the European Chapter of the Association for Computational Linguistics
Finite-state approximation of phrase structure grammars
ACL '91 Proceedings of the 29th annual meeting on Association for Computational Linguistics
Exploiting lexical regularities in designing natural language systems
COLING '88 Proceedings of the 12th conference on Computational linguistics - Volume 1
New York University: description of the Proteus system as used for MUC-5
MUC5 '93 Proceedings of the 5th conference on Message understanding
The NYU system for MUC-6 or where's the syntax?
MUC6 '95 Proceedings of the 6th conference on Message understanding
Natural language information retrieval: TIPSTER-2 final report
TIPSTER '96 Proceedings of a workshop on held at Vienna, Virginia: May 6-8, 1996
Shallow NLP techniques for internet search
ACSC '06 Proceedings of the 29th Australasian Computer Science Conference - Volume 48
AquaLog: An ontology-driven question answering system for organizational semantic intranets
Web Semantics: Science, Services and Agents on the World Wide Web
Topic indexing and retrieval for factoid QA
IRQA '08 Coling 2008: Proceedings of the 2nd workshop on Information Retrieval for Question Answering
Metadata extraction and description with use of RDF for e-learning context
WBE '08 Proceedings of the Seventh IASTED International Conference on Web-based Education
Binary lexical relations for text representation in information retrieval
NLDB'05 Proceedings of the 10th international conference on Natural Language Processing and Information Systems
Automatically structuring domain knowledge from text: An overview of current research
Information Processing and Management: an International Journal
A question answer approach to building semantic memory
ICAISC'12 Proceedings of the 11th international conference on Artificial Intelligence and Soft Computing - Volume Part II
Finding needles in the haystack: search and candidate generation
IBM Journal of Research and Development
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This paper argues that a finite-state language model with a ternary expression representation is currently the most practical and suitable bridge between natural language processing and information retrieval. Despite the theoretical computational inadequacies of finite-state grammars, they are very cost effective (in time and space requirements) and adequate for practical purposes. The ternary expressions that we use are not only linguistically-motivated, but also amenable to rapid large-scale indexing. REXTOR (Relations EXtracTOR) is an implementation of this model; in one uniform framework, the system provides two separate grammars for extracting arbitrary patterns of text and building ternary expressions from them. These content representational structures serve as the input to our ternary expressions indexer. This approach to natural language information retrieval promises to significantly raise the performance of current systems.