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ICC
2009
IEEE
16 years 1 months ago
A Training-Based Iterative Detection/Channel Estimation Scheme for Large Non-Orthogonal STBC MIMO Systems
Abstract—In this paper, we propose a training-based channel estimation scheme for large non-orthogonal space-time block coded (STBC) MIMO systems. The proposed scheme employs a b...
Ahmed Zaki, Saif K. Mohammed, Ananthanarayanan Cho...
GECCO
2009
Springer
144views Optimization» more  GECCO 2009»
16 years 27 days ago
Cheating for problem solving: a genetic algorithm with social interactions
We propose a variation of the standard genetic algorithm that incorporates social interaction between the individuals in the population. Our goal is to understand the evolutionary...
Rafael Lahoz-Beltra, Gabriela Ochoa, Uwe Aickelin
IWANN
2009
Springer
16 years 27 days ago
RCGA-S/RCGA-SP Methods to Minimize the Delta Test for Regression Tasks
Frequently, the number of input variables (features) involved in a problem becomes too large to be easily handled by conventional machine-learning models. This paper introduces a c...
Fernando Mateo, Dusan Sovilj, Rafael Gadea Giron&e...
SAT
2009
Springer
94views Hardware» more  SAT 2009»
16 years 26 days ago
Solving SAT for CNF Formulas with a One-Sided Restriction on Variable Occurrences
In this paper we consider the class of boolean formulas in Conjunctive Normal Form (CNF) where for each variable all but at most d occurrences are either positive or negative. This...
Daniel Johannsen, Igor Razgon, Magnus Wahlströ...
ICRA
2008
IEEE
107views Robotics» more  ICRA 2008»
16 years 23 days ago
Storing and recalling information for vision localization
— In implementing a vision localization system, a crucial issue to consider is how to efficiently store and recall the necessary information so that the robot is not only able t...
Christian Siagian, Laurent Itti