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ISAAC
2009
Springer
113views Algorithms» more  ISAAC 2009»
14 years 2 months ago
On Shortest Disjoint Paths in Planar Graphs
For a graph G and a collection of vertex pairs {(s1, t1), . . . , (sk, tk)}, the k disjoint paths problem is to find k vertex-disjoint paths P1, . . . , Pk, where Pi is a path fr...
Yusuke Kobayashi, Christian Sommer 0002
ECCC
2006
107views more  ECCC 2006»
13 years 10 months ago
Energy Complexity and Entropy of Threshold Circuits
Abstract. Circuits composed of threshold gates (McCulloch-Pitts neurons, or perceptrons) are simplified models of neural circuits with the advantage that they are theoretically mor...
Wolfgang Maass, Kei Uchizawa, Rodney J. Douglas
SODA
2010
ACM
185views Algorithms» more  SODA 2010»
13 years 8 months ago
Solving MAX-r-SAT Above a Tight Lower Bound
We present an exact algorithm that decides, for every fixed r ≥ 2 in time O(m) + 2O(k2 ) whether a given multiset of m clauses of size r admits a truth assignment that satisfi...
Noga Alon, Gregory Gutin, Eun Jung Kim, Stefan Sze...
HYBRID
2009
Springer
14 years 4 months ago
Finite Automata as Time-Inv Linear Systems Observability, Reachability and More
We show that regarding finite automata (FA) as discrete, time-invariant linear systems over semimodules, allows to: (1) express FA minimization and FA determinization as particula...
Radu Grosu
ICDE
2008
IEEE
161views Database» more  ICDE 2008»
14 years 4 months ago
On the semantics and evaluation of top-k queries in probabilistic databases
We formulate three intuitive semantic properties for topk queries in probabilistic databases, and propose GlobalTopk query semantics which satisfies all of them. We provide a dyn...
Xi Zhang, Jan Chomicki