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MOR
2006
93views more  MOR 2006»
15 years 6 months ago
Optimization of Convex Risk Functions
We consider optimization problems involving convex risk functions. By employing techniques of convex analysis and optimization theory in vector spaces of measurable functions we d...
Andrzej Ruszczynski, Alexander Shapiro
SIAMCOMP
2008
84views more  SIAMCOMP 2008»
15 years 6 months ago
Resolution Is Not Automatizable Unless W[P] Is Tractable
We show that neither Resolution nor tree-like Resolution is automatizable unless the class W[P] from the hierarchy of parameterized problems is fixed-parameter tractable by randomi...
Michael Alekhnovich, Alexander A. Razborov
AMC
2005
127views more  AMC 2005»
15 years 6 months ago
The identification of nondominated and efficient paths on a network
In this paper, we present an application of 0-1 linear programming problem in the indentification of the nondominated paths on a network. To find efficient paths, an adaptationof t...
Gholam Reza Jahanshahloo, F. Hosseinzadeh Lotfi, N...
IPL
2007
94views more  IPL 2007»
15 years 6 months ago
A note on emptiness for alternating finite automata with a one-letter alphabet
We present a new proof of PSPACE-hardness of the emptiness problem for alternating finite automata with a singleton alphabet. This result was shown by Holzer (1995) who used a pr...
Petr Jancar, Zdenek Sawa
JOT
2007
69views more  JOT 2007»
15 years 6 months ago
Form over Substance
Beware of the colleague or supplier who spends large amounts of time in meetings discussing the format, sequence, and wording of documents they will deliver and very little time o...
John McGregor