Mon 17 Jan 2022 14:20 - 14:45 at Directors - Answer Set Programming Chair(s): Martin Gebser

In the field of planning, an action is called reversible when other actions can be applied that revert the effects of this action, and return to the original state. In recent years, there has been renewed interest in this topic, which led to novel results w.r.t. the widely known STRIPS and PDDL planning languages.

In this paper, we aim to solve the computational problem of deciding action reversibility in a practical setting, applying recent advances in the field of logic programming. In particular, a quantified extension of Answer Set Programming (ASP) named ASP with Quantifiers (ASP(Q)) has been proposed by Amendola, Ricca, and Truszczynski, which allows for stacking logic programs by quantifying over answer sets of the previous layer. This language is well-suited to express encodings for the action reversibility problem, since this problem naturally contains a quantifier alternation. In addition, a prototype solver for ASP(Q) is currently developed. We make use of the ASP(Q) language to offer an encoding for action reversibility, and then report on preliminary benchmark results on how well this encoding performs compared to classical ASP.

Mon 17 Jan

Displayed time zone: Eastern Time (US & Canada) change

13:30 - 14:45
Answer Set ProgrammingPADL at Directors
Chair(s): Martin Gebser University of Klagenfurt, Austria

Remote session chair

13:30
25m
Talk
Modelling the Outlier Detection Problem in QASPRemote
PADL
Pierpaolo Bellusci University of Calabria, Giuseppe Mazzotta University of Calabria, Fracesco Ricca University of Calabria
13:55
25m
Talk
Multi-Agent Pick and Delivery with Capacities: Action Planning vs Path FindingRemote
PADL
Nima Tajelipirbazari TED University, Çağrı Uluç Yıldırımoğlu Sabanci University, Orkunt Sabuncu TED University, Ali Can Arıcı Ekol Logistics, İdil Helin Özen Ekol Logistics, Volkan Patoğlu Sabanci University, Esra Erdem Sabanci University, Turkey
14:20
25m
Talk
Determining Action Reversibility in STRIPS Using Answer Set Programming with QuantifiersRemote
PADL
Wolfgang Faber University of Klagenfurt, Michael Morak University of Klagenfurt, Lukas Chrpa Czech Technical University in Prague