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» On the Complexity of Several Haplotyping Problems
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DAM
2008
61views more  DAM 2008»
13 years 7 months ago
Scheduling malleable tasks with interdependent processing rates: Comments and observations
In this short paper we examine the problem of scheduling malleable tasks on parallel processors. One of the main aims of the paper is to present a simple complexity interpretation...
Edmund K. Burke, Moshe Dror, James B. Orlin
NPL
2002
151views more  NPL 2002»
13 years 7 months ago
Additive Composition of Supervised Self Organizing Maps
The learning of complex relationships can be decomposed into several neural networks. The modular organization is determined by prior knowledge of the problem that permits to split...
Jean-Luc Buessler, Jean-Philippe Urban, Julien Gre...
IPL
2007
94views more  IPL 2007»
13 years 7 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
SIAMCOMP
2010
135views more  SIAMCOMP 2010»
13 years 2 months ago
Intractability of Clique-Width Parameterizations
We show that Edge Dominating Set, Hamiltonian Cycle, and Graph Coloring are W[1]-hard parameterized by clique-width. It was an open problem, explicitly mentioned in several papers,...
Fedor V. Fomin, Petr A. Golovach, Daniel Lokshtano...
KER
2008
88views more  KER 2008»
13 years 7 months ago
Ontology change: classification and survey
Ontologies play a key role in the advent of the Semantic Web. An important problem when dealing with ontologies is the modification of an existing ontology in response to a certai...
Giorgos Flouris, Dimitris Manakanatas, Haridimos K...