TY - GEN
T1 - On the complexity of constraint-based theory extraction
AU - Boley, Mario
AU - Gärtner, Thomas
PY - 2009
Y1 - 2009
N2 - In this paper we rule out output polynomial listing algorithms for the general problem of discovering theories for a conjunction of monotone and anti-monotone constraints as well as for the particular subproblem in which all constraints are frequency-based. For the general problem we prove a concrete exponential lower time bound that holds for any correct algorithm and even in cases in which the size of the theory as well as the only previous bound are constant. For the case of frequency-based constraints our result holds unless P = NP. These findings motivate further research to identify tractable subproblems and justify approaches with exponential worst case complexity.
AB - In this paper we rule out output polynomial listing algorithms for the general problem of discovering theories for a conjunction of monotone and anti-monotone constraints as well as for the particular subproblem in which all constraints are frequency-based. For the general problem we prove a concrete exponential lower time bound that holds for any correct algorithm and even in cases in which the size of the theory as well as the only previous bound are constant. For the case of frequency-based constraints our result holds unless P = NP. These findings motivate further research to identify tractable subproblems and justify approaches with exponential worst case complexity.
UR - http://www.scopus.com/inward/record.url?scp=71049148966&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-04747-3_10
DO - 10.1007/978-3-642-04747-3_10
M3 - Conference contribution
AN - SCOPUS:71049148966
SN - 3642047467
SN - 9783642047466
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 92
EP - 106
BT - Discovery Science - 12th International Conference, DS 2009, Proceedings
T2 - 12th International Conference on Discovery Science, DS 2009
Y2 - 3 October 2009 through 5 October 2009
ER -