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Meta-Level Control for Deductive Database Systems / by Helmut Schmidt
(Lecture Notes in Computer Science. ISSN:16113349 ; 479)
版 | 1st ed. 1991. |
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出版者 | Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer |
出版年 | 1991 |
本文言語 | 英語 |
大きさ | VI, 156 p : online resource |
著者標目 | *Schmidt, Helmut author SpringerLink (Online service) |
件 名 | LCSH:Data structures (Computer science) LCSH:Information theory LCSH:Database management LCSH:Artificial intelligence FREE:Data Structures and Information Theory FREE:Database Management FREE:Artificial Intelligence |
一般注記 | A standard deductive database system -- An expert deductive database system -- Discarding irrelevant tuples -- Disregarding irrelevant rules -- Explicit termination of recursion -- Preferring useful rules -- Preferring useful tuples -- Summary and outlook The development of database technology has currently reached the stage of deductive database systems which use Horn clauses for defining relations. An important characteristic of these systems is the clear separation of logic and control. However, the programmer cannot affect the control part of a deductive database system. To eliminate this deficiency, this monograph presents a so-called expert deductive database system that allows explicit control of the deduction process. The system consists of an object-level describing the logical aspects of a problem and of a meta-level that contains application-specific control information affecting the object-level deduction process. For example, object-level rules can be disregarded, and some tuples deduced at the object-level can be preferred to others. Besides the architecture of this system, the book also identifies some important possibilities of deduction control which are explained by characteristic examples HTTP:URL=https://doi.org/10.1007/3-540-53754-6 |
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電子ブック | オンライン | 電子ブック |
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Springer eBooks | 9783540470823 |
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EB00225271 |
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データ種別 | 電子ブック |
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分 類 | LCC:QA76.9.D35 LCC:Q350-390 DC23:005.73 DC23:003.54 |
書誌ID | 4001090045 |
ISBN | 9783540470823 |