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» On the Computational Complexity of Cut-Reduction
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CORR
2010
Springer
96views Education» more  CORR 2010»
15 years 4 months ago
Parameterized Complexity Results in Symmetry Breaking
Abstract. Symmetry is a common feature of many combinatorial problems. Unfortunately eliminating all symmetry from a problem is often computationally intractable. This paper argues...
Toby Walsh
CAE
2007
15 years 8 months ago
Conceptualizing Birkhoff's Aesthetic Measure Using Shannon Entropy and Kolmogorov Complexity
In 1928, George D. Birkhoff introduced the Aesthetic Measure, defined as the ratio between order and complexity, and, in 1965, Max Bense analyzed Birkhoff's measure from an i...
Jaume Rigau, Miquel Feixas, Mateu Sbert
SIAMCOMP
2010
174views more  SIAMCOMP 2010»
15 years 4 months ago
On the Complexity of Nash Equilibria and Other Fixed Points
We reexamine what it means to compute Nash equilibria and, more generally, what it means to compute a fixed point of a given Brouwer function, and we investigate the complexity o...
Kousha Etessami, Mihalis Yannakakis
CORR
2010
Springer
153views Education» more  CORR 2010»
15 years 5 months ago
The Complexity of Causality and Responsibility for Query Answers and non-Answers
An answer to a query has a well-defined lineage expression (alternatively called how-provenance) that explains how the answer was derived. Recent work has also shown how to comput...
Alexandra Meliou, Wolfgang Gatterbauer, Katherine ...
IJCAI
2007
15 years 7 months ago
Hybrid Elections Broaden Complexity-Theoretic Resistance to Control
Electoral control refers to attempts by an election’s organizer (“the chair”) to influence the outcome by adding/deleting/partitioning voters or candidates. The groundbreak...
Edith Hemaspaandra, Lane A. Hemaspaandra, Jör...