Download PDF by Nelson M. Mattos: An Approach to Knowledge Base Management

By Nelson M. Mattos

This ebook addresses the advance of a brand new iteration of structures, wisdom Base administration structures (KBMS), in particular built for potent and effective administration of information bases, with the purpose of filling a part of the technological hole among synthetic intelligence and databases. The booklet first investigates intimately the layout method, the structure, and the operating equipment of information dependent platforms (KS) so one can indicate the major features of the sector in addition to its present obstacles, which serve then as foundation for a precise formula of KS standards. An research and review of alternative ways (e.g., traditional DBS, non-standard DBS, coupling professional platforms and DBS) to wisdom administration is given. The publication exhibits that during constructing KBMS, the event got through the research of every of those ways is intensely vital due to the fact that they supply the fundamental ideas for development KBMS. The techniques shouldn't be seen as entire and ultimate yet as a part of examine paintings in the direction of KBMS. a singular structure is defined for KBMS which integrates the performance, flexibility and modeling energy of DBS and AI. the most a part of the ebook offers with all very important architectural difficulties of KBMS: equipment for wisdom illustration with certain emphasis on abstraction suggestions, language proposals, and ideas for functionality development. The e-book is predicated on functional event collected over 5 years of profitable learn in coupling present professional platforms and DBS, extending DBS with deductive services, and chiefly within the layout and implementation of a KBMS prototype. therefore the book's proposals are illustrated with distinctive descriptions in their awareness in present structures or prototypes.

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Extra resources for An Approach to Knowledge Base Management

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2: Activities of the XPS development process Knowledge Acquisition Knowledge does not come off-the-shelf, prepackaged, ready to be used. Because of this, knowledge engineers must first of all collect it by analyzing the expert's working method in the application domain. Knowledge acquisition is, just like in the cognitive cycle, the process of eliciting from different sources, here mostly a human expert, the knowledge involved in the problem solving process in a particular application domain. The key product of this extraction is the problem solving heuristics.

Thus, precise knowledge can be stated as assertions over objects that take the form of firstorder predicates with functions and equality [Ko79]. According to this view, a KB is a collection of logical formulas providing a description of the world. ) of the logical formulas. Logic has the advantage of offering a sound and complete set of inference rules. Uple uses of the same piece of knowledge, although it is represented just once in the KB. Furthermore, it usually possesses a well-understood and well-accepted formal semantics [Me64], and a very simple notation, which leads to a KB description that is easily understandable [My80].

And structural KR schemes are frames [Mi75], units [St81a], and scripts [SA77]. In the following, we give a brief overview of some of these KR schemes. Other more extensive overviews are found in [My80,ML84], discussions about central issues on KR theory in [BC75,Ha74], and detailed papers on semantic network, production system, and logical representation respectively in [Fi79,WH79,GM78]. More recently, [BL85] have compiled an important collection of papers which give the interested reader a self-contained survey of the whole KR field.

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