Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.11889/2091
Title: | Computing perfect and stable models using ordered model trees Computing perfect and stable models using ordered model trees |
Authors: | Fernandez, Jose Alberto Minker, Jack Yahya, Adnan |
Issue Date: | Feb-1995 | Publisher: | ResearchGate | Abstract: | Ordered Model trees were introduced as a normal form for disjunctive deductive databases. They were also used to facilitate the computation of minimal models for disjunctive theories by exploiting the order imposed on the Herbrand base of the theory. In this work we show how the order on the Herbrand base can be used to compute perfect models of a disjunctive strati ed nite theory. We are able to compute the stable models of a general nite theory by combining the order on the elements of the Herbrand base with previous results that had shown that the stable models of a theory T can be computed as the perfect models of a corresponding disjunctive theory ET resulting from applying the so called evidential transformation to T . While other methods consider many models that are rejected at the end, the use of atom ordering allows us to guarantee that every model generated belongs to the class of models being computed. As for negation-free databases, the ordered tree serves as the canonical representation of the database. | URI: | http://hdl.handle.net/20.500.11889/2091 |
Appears in Collections: | Fulltext Publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
COMPUTING_PERFECT_AND_STABLE_MODELS_USING_ORDERED_.pdf | 350.34 kB | Adobe PDF | View/Open |
Page view(s)
138
Last Week
0
0
Last month
2
2
checked on Apr 14, 2024
Download(s)
36
checked on Apr 14, 2024
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.