Abstract:A local linear discriminant merging method is proposed and the discriminant analysis is carried out on nonlinear manifold. The local linear discriminants were constructed at the local regions obtained by using the Gabriel Graph, then merged to achieve the global nonlinear discriminant. Each local discriminant was assigned to the best weight coefficient in iterative manner by following the margin criterion. So the global nonlinear problem is decomposed into the local linear problem and the discriminant merging problem, which are relatively easy to conquer. The margin criterion based merging algorithm can solve the “sample size sample” problem and ensure that the performance of the global discriminant is independent of the distribution of sample data. The superiority of proposed algorithm is confirmed by experiments on synthesized data and face image set.
陈华杰,韦巍. 基于局部线性判别器融合的非线性流形判别分析[J]. 模式识别与人工智能, 2007, 20(1): 1-6.
CHEN HuaJie, WEI Wei. Discriminant Analysis on Nonlinear Manifold Based on Local Linear Discriminant Merging. , 2007, 20(1): 1-6.
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