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MFCS
1989
Springer
14 years 2 months ago
Space Bounded Computations: Review And New Separation Results
In this paper we review the key results about space bounded complexity classes, discuss the central open problems and outline the prominent proof techniques. We show that, for a s...
Juris Hartmanis, Desh Ranjan
ECCC
2007
62views more  ECCC 2007»
13 years 10 months ago
Space Hierarchy Results for Randomized and Other Semantic Models
We prove space hierarchy and separation results for randomized and other semantic models of computation with advice where a machine is only required to behave appropriately when g...
Jeff Kinne, Dieter van Melkebeek
MP
2006
88views more  MP 2006»
13 years 10 months ago
Two-edge connected subgraphs with bounded rings: Polyhedral results and Branch-and-Cut
Abstract. We consider the network design problem which consists in determining at minimum cost a 2-edge connected network such that the shortest cycle (a "ring") to which...
Bernard Fortz, Ali Ridha Mahjoub, S. Thomas McCorm...
CORR
2010
Springer
179views Education» more  CORR 2010»
13 years 8 months ago
The DMM bound: multivariate (aggregate) separation bounds
In this paper we derive aggregate separation bounds, named after Davenport-MahlerMignotte (DMM), on the isolated roots of polynomial systems, specifically on the minimum distance ...
Ioannis Z. Emiris, Bernard Mourrain, Elias P. Tsig...
ICASSP
2008
IEEE
14 years 5 months ago
Blind source separation using monochannel overcomplete dictionaries
We propose a new approach to underdetermined Blind Source Separation (BSS) using sparse decomposition over monochannel dictionary atoms and compare it to multichannel dictionary a...
B. Vikrham Gowreesunker, Ahmed H. Tewfik