Könyv Meta-Level Control for Deductive Database Systems Helmut Schmidt

Meta-Level Control for Deductive Database Systems

Szerző: Helmut Schmidt
Nyelv: Angol
Kötés: Puha kötésű
Elérhetőség: Beszállítói készleten
Küldés 5-8 napon belül
19 080 Ft
The development of database technology has currently reached the stage of deductive database systems...

Információk a könyvről

Szerző
Nyelv
Angol
Kötés
Könyv - Puha kötésű
Kiadva
1991
oldal
156
EAN
9783540537540
ISBN
3540537546
Enbook ID
01565390
Súly
286
Méretek
155 x 233 x 9

Teljes leírás

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.

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