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TCBB
2010
166views more  TCBB 2010»
15 years 4 months ago
Approximate Maximum Parsimony and Ancestral Maximum Likelihood
— We explore the maximum parsimony (MP) and ancestral maximum likelihood (AML) criteria in phylogenetic tree reconstruction. Both problems are NP hard, so we seek approximate sol...
Noga Alon, Benny Chor, Fabio Pardi, Anat Rapoport
NIPS
2001
15 years 7 months ago
A General Greedy Approximation Algorithm with Applications
Greedy approximation algorithms have been frequently used to obtain sparse solutions to learning problems. In this paper, we present a general greedy algorithm for solving a class...
T. Zhang
ISAAC
2005
Springer
90views Algorithms» more  ISAAC 2005»
15 years 12 months ago
Approximate Colored Range Queries
In this paper, we formulate a class of colored range query problems to model the multi-dimensional range queries in the presence of categorical information. By applying appropriate...
Ying Kit Lai, Chung Keung Poon, Benyun Shi
WAE
2000
103views Algorithms» more  WAE 2000»
15 years 7 months ago
Lattice Basis Reduction with Dynamic Approximation
Abstract. In this paper we present a heuristic based on dynamic approximations for improving the well-known Schnorr-Euchner lattice basis reduction algorithm. In particular, the ne...
Werner Backes, Susanne Wetzel
ISCAS
2006
IEEE
70views Hardware» more  ISCAS 2006»
16 years 13 days ago
A systolic array technique for determining common approximate substrings
— A new technique that makes use of a systolic array structure is proposed for solving the common approximate substring (CAS) problem. This approach extends the technique introdu...
Kenneth B. Kent, Jacqueline E. Rice