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» On the Theory of Average Case Complexity
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STACS
2009
Springer
14 years 2 months ago
Enumerating Homomorphisms
The homomorphism problem for relational structures is an abstract way of formulating constraint satisfaction problems (CSP) and various problems in database theory. The decision ve...
Andrei A. Bulatov, Víctor Dalmau, Martin Gr...
AGTIVE
2007
Springer
14 years 2 months ago
Using Graph Transformation to Support Collaborative Ontology Evolution
In collaborative ontology engineering, contexts are key to manage the complexity of different dependency types between ontological artefacts. Instead of being frustrated by out-of...
Pieter De Leenheer, Tom Mens
SIGECOM
2006
ACM
184views ECommerce» more  SIGECOM 2006»
14 years 1 months ago
Computing pure nash equilibria in graphical games via markov random fields
We present a reduction from graphical games to Markov random fields so that pure Nash equilibria in the former can be found by statistical inference on the latter. Our result, wh...
Constantinos Daskalakis, Christos H. Papadimitriou
GECCO
2005
Springer
153views Optimization» more  GECCO 2005»
14 years 1 months ago
Harmony search for structural design
Various algorithms have been developed and applied to structural optimization, in which cross-sectional areas of structure members are assumed to be continuous. In most cases of p...
Zong Woo Geem, Kang Seok Lee, Chung-Li Tseng
DIALM
2004
ACM
100views Algorithms» more  DIALM 2004»
14 years 1 months ago
Virtual coordinates for ad hoc and sensor networks
In many applications of wireless ad hoc and sensor networks, position-awareness is of great importance. Often, as in the case of geometric routing, it is sufficient to have virtua...
Thomas Moscibroda, Regina O'Dell, Mirjam Wattenhof...