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Simple Temporal Problems with Taboo Regions
University of Southern California, Los Angeles, USA. (Computer Science Department)
Örebro University, School of Science and Technology. (AASS)
University of Southern California, Los Angeles, USA. (Computer Science Department)
2013 (English)In: Proceedings of the Twenty-Seventh AAAI Conference on Artificial Intelligence (AAAI), AAAI Press, 2013Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we define and study the general framework of Simple Temporal Problems with Taboo regions (STPTs) and show how these problems capture metric temporal reasoning aspects which are common to many real-world applications. STPTs encode simple temporal constraints between events and user-defined taboo regions on the timeline, during which no event is allowed to take place. We discuss two different variants of STPTs. The first one deals with (instantaneous) events, while the second one allows for (durative) processes. We also provide polynomial-time algorithms for solving them. If all events or processes cannot be scheduled outside of the taboo regions, one needs to define and reason about "soft" STPTs. We show that even "soft" STPTs can be solved in polynomial time, using reductions to max-flow problems. The resulting algorithms allow for incremental computations, which is important for the successful application of our approach in real-time domains.

Place, publisher, year, edition, pages
AAAI Press, 2013.
Keyword [en]
Temporal Reasoning, Constraint Satisfaction, Algorithms and Complexity
National Category
Computer Science
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:oru:diva-29945OAI: oai:DiVA.org:oru-29945DiVA: diva2:635099
Conference
Twenty-Seventh AAAI Conference on Artificial Intelligence (AAAI), July 16-18, 2013, Bellevue, Washington, USA
Funder
Knowledge Foundation, SAUNA
Available from: 2013-07-02 Created: 2013-07-02 Last updated: 2017-10-18Bibliographically approved

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Citation style
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Language
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