| 摘要 |
A database design and maintenance system and method includes a software suite designed to assist users with creating, storing, updating and reusing full-text and bibliographic databases. The software suite includes three components configured to operate on any Java-enabled server. The first component is an intranet system for document entry, editing, and viewing. The second component is an indexer that includes concept extracting, statistical collecting, and rule building functionality. For example, when a text document is entered into the intranet system, the concept extractor scans the document to determine appropriate subject terms for identifying the document. These subject terms are reviewed by a human indexer and assigned to the document. The statistical collecting function analyzes the concept extractor's performance in finding appropriate indexing terms and maintains a record of the hits, misses, and noise. If a term is consistently missed by the concept extractor, the rule building function of the indexer creates a new rule for finding appropriate indexing terms. The third component is a thesaurus management system that allows users to write and manage their own vocabulary of specialized terms, or expand upon an existing thesaurus employed in the database design and maintenance system. Thus, if the statistical collecting function of the indexer shows the need for a subject term that is not included in the thesaurus, the subject term can be entered into the thesaurus. The database design and maintenance system and method brings together technology and protocols for an entirely different approach to text, taxonomy and catalog management.
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