Generalized re-weighting local sampling mean discriminant analysis
Pattern Recognition
Modeling recognizing behavior of radar high resolution range profile using multi-agent system
WSEAS Transactions on Information Science and Applications
Optimizing search engines results using linear programming
Expert Systems with Applications: An International Journal
Radar HRRP recognition based on discriminant information analysis
WSEAS Transactions on Information Science and Applications
On the evolutionary optimization of k-NN by label-dependent feature weighting
Pattern Recognition Letters
Robust feature selection based on regularized brownboost loss
Knowledge-Based Systems
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The problem of feature selection is a difficult combinatorial task in machine learning and of high practical relevance. In this paper, we consider feature selection method for multimodally distributed data, and present a large margin feature weighting method for k-nearest neighbor (kNN) classifiers. The method learns the feature weighting factors by minimizing a cost function, which aims at separating different classes by large local margins and pulling closer together points from the same class, based on using as few features as possible. The consequent optimization problem can be efficiently solved by Linear Programming. Finally, the proposed approach is assessed through a series of experiments with UCI and microarray data sets, as well as a more specific and challenging task, namely, radar high-resolution range profiles (HRRP) automatic target recognition (ATR). The experimental results demonstrate the effectiveness of the proposed algorithms.