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IPCO
2008
129views Optimization» more  IPCO 2008»
15 years 3 months ago
A Polynomial Time Approximation Scheme for the Square Packing Problem
Given a set Q of squares with positive pro ts, the square packing problem is to select and pack a subset of squares of maximum pro t into a rectangular bin R. We present a polynomi...
Klaus Jansen, Roberto Solis-Oba
ACL
2001
15 years 3 months ago
Information Extraction from Voicemail
In this paper we address the problem of extracting key pieces of information from voicemail messages, such as the identity and phone number of the caller. This task differs from t...
Jing Huang, Geoffrey Zweig, Mukund Padmanabhan
CORR
2007
Springer
115views Education» more  CORR 2007»
15 years 1 months ago
To Decode the Interference or To Consider it as Noise
— We address data transmission over the M-user Gaussian interference channel, where users send data using single Gaussian codebooks. We first present a polynomial-time algorithm...
Abolfazl S. Motahari, Amir K. Khandani
STOC
2003
ACM
109views Algorithms» more  STOC 2003»
15 years 7 months ago
A new multilayered PCP and the hardness of hypergraph vertex cover
Given a k-uniform hypergraph, the Ek-Vertex-Cover problem is to find the smallest subset of vertices that intersects every hyperedge. We present a new multilayered PCP constructi...
Irit Dinur, Venkatesan Guruswami, Subhash Khot, Od...
DM
2010
124views more  DM 2010»
15 years 2 months ago
Asymptotic enumeration of 2-covers and line graphs
A 2-cover is a multiset of subsets of [n] := {1, 2, . . . , n} such that each element of [n] lies in exactly two of the subsets. A 2-cover is called proper if all of the subsets o...
Peter J. Cameron, Thomas Prellberg, Dudley Stark