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Database Relaxation: An Approach to Query Processing in Incomplete Databases.
Peer reviewed Peer reviewed
Shen, Sheldon – Information Processing and Management, 1988
Describes a model for a front end query processor to deal with incomplete information in a database. The effectiveness of the processor in restricting the number of objects to be processed in a query and in aiding the interpretation of a query is discussed. (26 references) (Author/CLB)
Descriptors: Algorithms, Computational Linguistics, Databases, Mathematical Formulas
An Improved Algorithm for the Calculation of Exact Term Discrimination Values.
Peer reviewed Peer reviewed
El-Hamdouchi, Abdelmoula; Willett, Peter – Information Processing and Management, 1988
Describes an algorithm for the calculation of term discrimination values that may be used when the interdocument similarity measure used is the cosine coefficient and when the document representations have been weighted using one particular term weighting scheme. (7 references) (Author/CLB)
Descriptors: Algorithms, Automatic Indexing, Computational Linguistics, Discriminant Analysis
A Linguistic Approach to Information Retrieval--II
Peer reviewed Peer reviewed
And Others; Sgall, Petr – Information Processing and Management, 1975
Looks for a method to formulate algorithms useful for the synthesis of Czech in machine translation where the point of departure for the synthesis can be more or less identical with the semantic representation. (Author/PF)
Descriptors: Algorithms, Computational Linguistics, Czech, Graphemes
Information Extraction and Text Summarization Using Linguistic Knowledge Acquisition.
Peer reviewed Peer reviewed
Rau, Lisa F.; And Others – Information Processing and Management, 1989
Describes SCISOR (System for Conceptual Information Summarization, Organization and Retrieval), a prototype intelligent information retrieval system that extracts useful information from large bodies of text. It overcomes limitations of linguistic coverage by applying a text processing strategy that is tolerant of unknown words and gaps in…
Descriptors: Algorithms, Artificial Intelligence, Automation, Computational Linguistics
A Priori Analysis of Natural Language Queries.
Peer reviewed Peer reviewed
Spiegler, Israel; Elata, Smadar – Information Processing and Management, 1988
Presents a model for the a priori analysis of natural language queries which uses an algorithm to transform the query into a logical pattern that is used to determine the answerability of the query. The results of testing by a prototype system implemented in PROLOG are discussed. (20 references) (CLB)
Descriptors: Algorithms, Computational Linguistics, Databases, Information Retrieval
An Analysis of Approximate versus Exact Discrimination Values.
Peer reviewed Peer reviewed
Crouch, Carolyn J. – Information Processing and Management, 1988
Describes the two basic approaches to the calculation of term discrimination values for automatic indexing. The results of an experiment that investigated the differences between algorithms of these two approaches in terms of their impact on the discrimination value model are reported and discussed. (13 references) (Author/CLB)
Descriptors: Algorithms, Automatic Indexing, Comparative Analysis, Computational Linguistics
A Thesaural Model of Information Retrieval.
Peer reviewed Peer reviewed
Paice, Chris D. – Information Processing and Management, 1991
Proposes that topic representations should consist of excerpts from domain thesaurus, generated by spreading activation technique. Algorithm for generating excerpts is outlined and exemplified, and problem of assessing resemblance between two excerpts is discussed. Whether existing thesauri are adequate for this purpose is questioned, and ideas…
Descriptors: Algorithms, Computational Linguistics, Information Retrieval, Models