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PAMI
2006
122views more  PAMI 2006»
15 years 5 months ago
Polarimetric Image Segmentation via Maximum-Likelihood Approximation and Efficient Multiphase Level-Sets
This study investigates a level set method for complex polarimetric image segmentation. It consists of minimizing a functional containing an original observation term derived from ...
Ismail Ben Ayed, Amar Mitiche, Ziad Belhadj
169
Voted
JCP
2007
143views more  JCP 2007»
15 years 5 months ago
Noisy K Best-Paths for Approximate Dynamic Programming with Application to Portfolio Optimization
Abstract— We describe a general method to transform a non-Markovian sequential decision problem into a supervised learning problem using a K-bestpaths algorithm. We consider an a...
Nicolas Chapados, Yoshua Bengio
133
Voted
JAT
2002
62views more  JAT 2002»
15 years 4 months ago
Coconvex Approximation
Let f C[-1, 1] change its convexity finitely many times, in the interval. We are interested in estimating the degree of approximation of f by polynomials which are coconvex with i...
Dany Leviatan, Igor A. Shevchuk
154
Voted
RECOMB
2010
Springer
15 years 3 months ago
An Approximation Algorithm for Computing a Parsimonious First Speciation in the Gene Duplication Model
We consider the following problem: given a forest of gene family trees on a set of genomes, find a first speciation which splits these genomes into two subsets and minimizes the ...
Aïda Ouangraoua, Krister M. Swenson, Cedric C...
EMNLP
2010
15 years 3 months ago
Turbo Parsers: Dependency Parsing by Approximate Variational Inference
We present a unified view of two state-of-theart non-projective dependency parsers, both approximate: the loopy belief propagation parser of Smith and Eisner (2008) and the relaxe...
André F. T. Martins, Noah A. Smith, Eric P....