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FLAIRS
2003
15 years 6 months ago
Proving Harder Theorems by Axiom Reduction
Automated Theorem Proving (ATP) problems may contain unnecessary axioms, either because some of the axiomatization of the theory is irrelevant to the particular theorem, or becaus...
Geoff Sutcliffe, Alexander Dvorský
DM
2008
90views more  DM 2008»
15 years 4 months ago
Retractions onto series-parallel posets
The poset retraction problem for a poset P is whether a given poset Q containing P as a subposet admits a retraction onto P, that is, whether there is a homomorphism from Q onto P...
Víctor Dalmau, Andrei A. Krokhin, Benoit La...
IPL
2006
88views more  IPL 2006»
15 years 4 months ago
On Quickselect, partial sorting and Multiple Quickselect
We present explicit solutions of a class of recurrences related to the Quickselect algorithm. Thus we are immediately able to solve recurrences arising at the partial sorting probl...
Markus Kuba
EOR
2010
140views more  EOR 2010»
15 years 2 months ago
Cutting plane algorithms for 0-1 programming based on cardinality cuts
: We present new valid inequalities for 0-1 programming problems that work in similar ways to well known cover inequalities. Discussion and analysis of these cuts is followed by th...
Osman Oguz
140
Voted
TCS
2010
14 years 11 months ago
On the complexity of finding chordless paths in bipartite graphs and some interval operators in graphs and hypergraphs
In this paper we show that the problem of finding a chordless path between a vertex s and a vertex t containing a vertex v remains NP-complete in bipartite graphs, thereby strengt...
Mauro Mezzini