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AAAI
2004
15 years 6 months ago
Combinatorial Auctions with Structured Item Graphs
Combinatorial auctions (CAs) are important mechanisms for allocating interrelated items. Unfortunately, winner determination is NP-complete unless there is special structure. We s...
Vincent Conitzer, Jonathan Derryberry, Tuomas Sand...
EOR
2006
65views more  EOR 2006»
15 years 4 months ago
Generation of assembly graphs by systematic analysis of assembly structures
: Aimed at detection of parallel assembly modes, a method for assembly graph construction is described that is based on the systematic generation and analysis of precedence relatio...
Alfred J. D. Lambert
CPC
2006
97views more  CPC 2006»
15 years 4 months ago
Homomorphism-Homogeneous Relational Structures
We study relational structures (especially graphs and posets) which satisfy the analogue of homogeneity but for homomorphisms rather than isomorphisms. The picture is rather diffe...
Peter J. Cameron, Jaroslav Nesetril
FCT
2009
Springer
15 years 11 months ago
Directed Graphs of Entanglement Two
Entanglement is a complexity measure for directed graphs that was used to show that the variable hierarchy of the propositional modal µ-calculus is strict. While graphs of entangl...
Erich Grädel, Lukasz Kaiser, Roman Rabinovich
WWW
2008
ACM
16 years 5 months ago
As we may perceive: finding the boundaries of compound documents on the web
This paper considers the problem of identifying on the Web compound documents (cDocs) ? groups of web pages that in aggregate constitute semantically coherent information entities...
Pavel Dmitriev