On the utility of neighbourhood singleton-style consistencies for qualitative constraint-based spatial and temporal reasoning

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Tutkijat

Organisaatiot

  • Universite d'Artois
  • Tampere University

Kuvaus

A singleton-style consistency is a local consistency that verifies if each base relation (atom) of each constraint of a qualitative constraint network (QCN) can serve as a support with respect to the closure of that network under a (naturally) weaker local consistency. This local consistency is essential for tackling fundamental reasoning problems associated with QCNs, such as the satisfiability checking or the minimal labeling problem, but can suffer from redundant constraint checks, especially when those checks occur far from where the pruning usually takes place. In this paper, we propose singleton-style consistencies that are applied just on the neighbourhood of a singleton-checked constraint instead of the whole network. We make a theoretical comparison with existing consistencies and consequently prove some properties of the new ones. In addition, we propose algorithms to enforce our consistencies, as well as parsimonious variants thereof, that are more efficient in practice than the state of the art. We make an experimental evaluation with random and structured QCNs of Interval Algebra in the phase transition region to demonstrate the potential of our approach.

Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko26th International Symposium on Temporal Representation and Reasoning, TIME 2019
ToimittajatJohann Gamper, Sophie Pinchinat, Guido Sciavicco
TilaJulkaistu - 1 lokakuuta 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaInternational Symposium on Temporal Representation and Reasoning - Malaga, Espanja
Kesto: 16 lokakuuta 201919 lokakuuta 2019
Konferenssinumero: 26
https://sites.google.com/unife.it/time-2019/

Julkaisusarja

NimiLeibniz International Proceedings in Informatics, LIPIcs
KustantajaSchloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing
Vuosikerta147
ISSN (painettu)1868-8969

Conference

ConferenceInternational Symposium on Temporal Representation and Reasoning
LyhennettäTIME
MaaEspanja
KaupunkiMalaga
Ajanjakso16/10/201919/10/2019
www-osoite

ID: 38171105