Lp2normal — A normalization tool for extended logic programs

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

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Organisaatiot

Kuvaus

Answer set programming (ASP) features a rich rule-based modeling language for encoding search problems. While normal rules form the simplest rule type in the language, various forms of extended rules have been introduced in order to ease modeling of complex conditions and constraints. Normalization means replacing such extended rules with identically functioning sets of normal rules. In this system description, we present lp2normal, which is a state-of-the-art normalizer that acts as a filter on ground logic programs produced by grounders, such as gringo. It provides options to translate away choice rules, cardinality rules, and weight rules, and to rewrite optimization statements using comparable techniques. The produced logic programs are suitable inputs to tools that lack support for extended rules, in particular. We give an overview of the normalization techniques currently supported by the tool and summarize its features. Moreover, we discuss the typical application scenarios of normalization, such as when implementing the search for answer sets using a back-end solver without direct support for cardinality constraints or pseudo-Boolean constraints.

Yksityiskohdat

AlkuperäiskieliEnglanti
OtsikkoLogic Programming and Nonmonotonic Reasoning
Alaotsikko14th International Conference, LPNMR 2017, Espoo, Finland, July 3-6, 2017, Proceedings
TilaJulkaistu - 2017
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaInternational Conference on Logic Programming and Nonmonotonic Reasoning - Espoo, Suomi
Kesto: 3 heinäkuuta 20176 heinäkuuta 2017
Konferenssinumero: 14

Julkaisusarja

NimiLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
KustantajaSpringer
Vuosikerta10377
ISSN (painettu)0302-9743
ISSN (elektroninen)1611-3349

Conference

ConferenceInternational Conference on Logic Programming and Nonmonotonic Reasoning
LyhennettäLPNMR
MaaSuomi
KaupunkiEspoo
Ajanjakso03/07/201706/07/2017

ID: 14469161