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Niemi, Timo | 2 |
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Niemi, Timo; Jarvelin, Kalervo – Information Processing and Management, 1992
Discusses deductive databases and database management systems (DBMS) and introduces a framework for advanced query formulation for end users. Recursive processing is described, a sample extensional database is presented, query types are explained, and criteria for advanced query formulation from the end user's viewpoint are examined. (31…
Descriptors: Criteria, Database Management Systems, Databases, Information Retrieval

Jarvelin, Kalervo; Niemi, Timo – Journal of the American Society for Information Science, 1993
Shows how deductive data management techniques can be applied to the utilization of data value classifications in information retrieval. A representation of classifications which supports transitive computation is defined, and an operation-oriented deductive query language tailored for classification-based deductive information retrieval in fact…
Descriptors: Classification, Database Management Systems, Databases, Deduction