Upside-down meta-interpretation of the model elimination theorem-proving procedure for deduction and abduction:

Abstract: "Typical bottom-up, forward-chaining reasoning systems such as hyperresolution lack goal-directedness while typical top-down, backward-chaining reasoning systems like Prolog or model elimination repeatedly solve the same goals. Reasoning systems that are goal-directed and avoid repeat...

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Bibliographische Detailangaben
1. Verfasser: Stickel, Mark E. (VerfasserIn)
Format: Buch
Sprache:English
Veröffentlicht: Tokyo, Japan 1991
Schriftenreihe:Shin-Sedai-Konpyūta-Gijutsu-Kaihatsu-Kikō <Tōkyō>: ICOT technical report 664
Schlagworte:
Zusammenfassung:Abstract: "Typical bottom-up, forward-chaining reasoning systems such as hyperresolution lack goal-directedness while typical top-down, backward-chaining reasoning systems like Prolog or model elimination repeatedly solve the same goals. Reasoning systems that are goal-directed and avoid repeatedly solving the same goals can be constructed by formulating the top-down methods metatheoretically for execution by a bottom-up reasoning system (hence, 'upside-down meta-interpretation' is being used)
This method also allows incorporation of more flexible search ordering strategies, such as merit-ordered search, that are commonly available in bottom-up but not top-down interpreters; this advantage is not so readily or fully achievable in the alternative approach of adding caching to a top-down interpreter. Neiman has developed a similar method for deduction with Horn clauses and Bry has explored the idea in the context of query evaluation in databases. This work extends theirs to both non-Horn clauses and abductive reasoning and can be regarded as an extension of the magic set method to these cases. Model elimination extended by the ability to make assumptions for abduction and its restriction to Horn clauses are the top-down methods adapted here.
Beschreibung:21 S.

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