TY  - JOUR
A1  - Gebser, Martin
A1  - Janhunen, Tomi
A1  - Rintanen, Jussi
T1  - Declarative encodings of acyclicity properties
JF  - Journal of logic and computation
N2  - Many knowledge representation tasks involve trees or similar structures as abstract datatypes. However, devising compact and efficient declarative representations of such structural properties is non-obvious and can be challenging indeed. In this article, we take a number of acyclicity properties into consideration and investigate various logic-based approaches to encode them. We use answer set programming as the primary representation language but also consider mappings to related formalisms, such as propositional logic, difference logic and linear programming. We study the compactness of encodings and the resulting computational performance on benchmarks involving acyclic or tree structures.
KW  - acyclicity properties
KW  - logic-based modeling
KW  - answer set programming
KW  - satisfiability
Y1  - 2015
U6  - https://doi.org/10.1093/logcom/exv063
SN  - 0955-792X
SN  - 1465-363X
VL  - 30
IS  - 4
SP  - 923
EP  - 952
PB  - Oxford Univ. Press
CY  - Eynsham, Oxford
ER  - 
TY  - JOUR
A1  - Gebser, Martin
A1  - Maratea, Marco
A1  - Ricca, Francesco
T1  - The Seventh Answer Set Programming Competition
BT  - design and results
JF  - Theory and practice of logic programming
N2  - Answer Set Programming (ASP) is a prominent knowledge representation language with roots in logic programming and non-monotonic reasoning. Biennial ASP competitions are organized in order to furnish challenging benchmark collections and assess the advancement of the state of the art in ASP solving. In this paper, we report on the design and results of the Seventh ASP Competition, jointly organized by the University of Calabria (Italy), the University of Genova (Italy), and the University of Potsdam (Germany), in affiliation with the 14th International Conference on Logic Programming and Non-Monotonic Reasoning (LPNMR 2017).
KW  - Answer Set Programming
KW  - competition
Y1  - 2019
U6  - https://doi.org/10.1017/S1471068419000061
SN  - 1471-0684
SN  - 1475-3081
VL  - 20
IS  - 2
SP  - 176
EP  - 204
PB  - Cambridge Univ. Press
CY  - Cambridge [u.a.]
ER  -