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WWW
2009
ACM
16 years 1 months ago
A probabilistic model based approach for blended search
In this paper, we propose to model the blended search problem by assuming conditional dependencies among queries, VSEs and search results. The probability distributions of this mo...
Ning Liu, Jun Yan, Zheng Chen
GECCO
2009
Springer
134views Optimization» more  GECCO 2009»
15 years 11 months ago
BBOB-benchmarking two variants of the line-search algorithm
The restarted line search, or coordinate-wise search, algorithm is tested on the BBOB 2009 testbed. Two different univariate search algorithms (fminbnd from MATLAB and STEP) were...
Petr Posik
ICRA
2008
IEEE
113views Robotics» more  ICRA 2008»
16 years 27 days ago
Reinforcement learning with function approximation for cooperative navigation tasks
— In this paper, we propose a reinforcement learning approach to address multi-robot cooperative navigation tasks in infinite settings. We propose an algorithm to simultaneously...
Francisco S. Melo, M. Isabel Ribeiro
AI
2001
Springer
15 years 11 months ago
Concept-Learning in the Presence of Between-Class and Within-Class Imbalances
In a concept learning problem, imbalances in the distribution of the data can occur either between the two classes or within a single class. Yet, although both types of imbalances ...
Nathalie Japkowicz
TAMC
2009
Springer
16 years 1 months ago
Approximation and Hardness Results for Label Cut and Related Problems
We investigate a natural combinatorial optimization problem called the Label Cut problem. Given an input graph G with a source s and a sink t, the edges of G are classified into ...
Peng Zhang, Jin-yi Cai, Linqing Tang, Wenbo Zhao