An approach to supervised distance metric learning based on difference of convex functions programming.
Pattern Recognition(2018)
摘要
•We develop a metric learning method (DML-dc) for nearest-neighbor classification.•DML-dc is based on difference of convex functions (DC) programming.•DML-dc uses the ramp loss function to avoid the influence of outliers.•Extensive experiments on several benchmark data sets show the effectiveness of DML-dc.
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关键词
Distance metric learning,Nearest neighbor,Linear transformation,DC programming
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