IASCAR: Incremental Answer Set Counting by Anytime Refinement
Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/Gutachten › Beitrag in Buch/Sammelband/Gutachten › Beigetragen › Begutachtung
Beitragende
Abstract
Answer set programming (ASP) is a popular declarative programming paradigm with various applications. Programs can easily have so many answer sets that they cannot be enumerated in practice, but counting still allows to quantify solution spaces. If one counts under assumptions on literals, one obtains a tool to comprehend parts of the solution space, so called answer set navigation. But navigating through parts of the solution space requires counting many times, which is expensive in theory. There, knowledge compilation compiles instances into representations on which counting works in polynomial time. However, these techniques exist only for CNF formulas and compiling ASP programs into CNF formulas can introduce an exponential overhead. In this paper, we introduce a technique to iteratively count answer sets under assumptions on knowledge compilations of CNFs that encode supported models. Our anytime technique uses the principle of inclusion-exclusion to systematically improve bounds by over- and undercounting. In a preliminary empirical analysis we demonstrate promising results. After compiling the input (offline phase) our approach quickly (re)counts.
Details
Originalsprache | Englisch |
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Titel | Logic Programming and Nonmonotonic Reasoning - 16th International Conference, {LPNMR} 2022, Genova, Italy, September 5-9, 2022, Proceedings |
Herausgeber (Verlag) | Springer |
Seitenumfang | 14 |
Band | Lecture Notes in Computer Science |
Auflage | 13416 |
ISBN (elektronisch) | 978-3-031-15707-3 |
Publikationsstatus | Veröffentlicht - 2022 |
Peer-Review-Status | Ja |
Externe IDs
Scopus | 85137979484 |
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Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- ASP, Answer set counting, Knowledge compilation