LIPIcs.TIME.2023.17.pdf
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Answer Set Automata: A Learnable Pattern Specification Framework for Complex Event Recognition (Extended Abstract)
Authors
Nikos Katzouris 
,
Georgios Paliouras
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Volume:
30th International Symposium on Temporal Representation and Reasoning (TIME 2023)
Series: Leibniz International Proceedings in Informatics (LIPIcs)
Conference: International Symposium on Temporal Representation and Reasoning (TIME) - License:
Creative Commons Attribution 4.0 International license
- Publication Date: 2023-09-18
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Author Details
- Institute of Informatics, National Center for Scientific Research "Demokritos", Athens, Greece
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Nikos Katzouris and Georgios Paliouras. Answer Set Automata: A Learnable Pattern Specification Framework for Complex Event Recognition (Extended Abstract). In 30th International Symposium on Temporal Representation and Reasoning (TIME 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 278, pp. 17:1-17:3, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)
https://doi.org/10.4230/LIPIcs.TIME.2023.17
Abstract
Complex Event Recognition (CER) systems detect event occurrences in streaming input using predefined event patterns. Techniques that learn event patterns from data are highly desirable in CER. Since such patterns are typically represented by symbolic automata, we propose a family of such automata where the transition-enabling conditions are defined by Answer Set Programming (ASP) rules, and which, thanks to the strong connections of ASP to symbolic learning, are learnable from data. We present such a learning approach in ASP, capable of jointly learning the structure of an automaton and its transition guards' definitions from building-block predicates, and a scalable, incremental version thereof that progressively revises models learnt from mini-batches using Monte Carlo Tree Search. We evaluate our approach on three CER datasets and empirically demonstrate its efficacy.
Subject Classification
ACM Subject Classification
- Computing methodologies → Logic programming and answer set programming
Keywords
- Event Pattern Learning
- Answer Set Programming
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References
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