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DOI: 10.4230/LIPIcs.TIME.2018.7

Extracting Interval Temporal Logic Rules: A First Approach

Authors: Davide Bresolin, Enrico Cominato, Simone Gnani, Emilio Muñoz-Velasco, and Guido Sciavicco

Published in: LIPIcs, Volume 120, 25th International Symposium on Temporal Representation and Reasoning (TIME 2018)

Abstract

Discovering association rules is a classical data mining task with a wide range of applications that include the medical, the financial, and the planning domains, among others. Modern rule extraction algorithms focus on static rules, typically expressed in the language of Horn propositional logic, as opposed to temporal ones, which have received less attention in the literature. Since in many application domains temporal information is stored in form of intervals, extracting interval-based temporal rules seems the natural choice. In this paper we extend the well-known algorithm APRIORI for rule extraction to discover interval temporal rules written in the Horn fragment of Halpern and Shoham's interval temporal logic.

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Davide Bresolin, Enrico Cominato, Simone Gnani, Emilio Muñoz-Velasco, and Guido Sciavicco. Extracting Interval Temporal Logic Rules: A First Approach. In 25th International Symposium on Temporal Representation and Reasoning (TIME 2018). Leibniz International Proceedings in Informatics (LIPIcs), Volume 120, pp. 7:1-7:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@InProceedings{bresolin_et_al:LIPIcs.TIME.2018.7,
  author =	{Bresolin, Davide and Cominato, Enrico and Gnani, Simone and Mu\~{n}oz-Velasco, Emilio and Sciavicco, Guido},
  title =	{{Extracting Interval Temporal Logic Rules: A First Approach}},
  booktitle =	{25th International Symposium on Temporal Representation and Reasoning (TIME 2018)},
  pages =	{7:1--7:15},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-089-7},
  ISSN =	{1868-8969},
  year =	{2018},
  volume =	{120},
  editor =	{Alechina, Natasha and N{\o}rv\r{a}g, Kjetil and Penczek, Wojciech},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.TIME.2018.7},
  URN =		{urn:nbn:de:0030-drops-97728},
  doi =		{10.4230/LIPIcs.TIME.2018.7},
  annote =	{Keywords: Interval temporal logic, Horn fragment, Rule extraction}
}

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DOI: 10.4230/LIPIcs.CSL.2017.17

Fast(er) Reasoning in Interval Temporal Logic

Authors: Davide Bresolin, Emilio Muñoz-Velasco, and Guido Sciavicco

Published in: LIPIcs, Volume 82, 26th EACSL Annual Conference on Computer Science Logic (CSL 2017)

Abstract

Clausal forms of logics are of great relevance in Artificial Intelligence, because they couple a high expressivity with a low complexity of reasoning problems. They have been studied for a wide range of classical, modal and temporal logics to obtain tractable fragments of intractable formalisms. In this paper we show that such restrictions can be exploited to lower the complexity of interval temporal logics as well. In particular, we show that for the Horn fragment of the interval logic AAbar (that is, the logic with the modal operators for Allen’s relations meets and met by) without diamonds the complexity lowers from NEXPTIME-complete to P-complete. We prove also that the tractability of the Horn fragments of interval temporal logics is lost as soon as other interval temporal operators are added to AAbar, in most of the cases.

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Davide Bresolin, Emilio Muñoz-Velasco, and Guido Sciavicco. Fast(er) Reasoning in Interval Temporal Logic. In 26th EACSL Annual Conference on Computer Science Logic (CSL 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 82, pp. 17:1-17:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{bresolin_et_al:LIPIcs.CSL.2017.17,
  author =	{Bresolin, Davide and Mu\~{n}oz-Velasco, Emilio and Sciavicco, Guido},
  title =	{{Fast(er) Reasoning in Interval Temporal Logic}},
  booktitle =	{26th EACSL Annual Conference on Computer Science Logic (CSL 2017)},
  pages =	{17:1--17:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-045-3},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{82},
  editor =	{Goranko, Valentin and Dam, Mads},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2017.17},
  URN =		{urn:nbn:de:0030-drops-76782},
  doi =		{10.4230/LIPIcs.CSL.2017.17},
  annote =	{Keywords: Temporal Logic, Horn Fragments, Satisfiability, Complexity}
}

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Extracting Interval Temporal Logic Rules: A First Approach

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Fast(er) Reasoning in Interval Temporal Logic

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