arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1312.5604cs.CVcs.LGstat.ML
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分类森林的学习转换

Learning Transformations for Classification Forests

Duke University(杜克大学)

Qiang Qiu, Guillermo Sapiro

摘要:

这项工作介绍了一个基于转换的学习模型分类森林。每个分裂节点上的弱学习器在分类树中起着至关重要的作用。我们建议通过学习子空间上的线性变换,使用核范数作为优化标准来优化分裂目标。学习的线性变换恢复来自同一类的数据的低秩结构,并且同时最大化不同类之间的分离,从而提高分裂函数的性能。理论和实验结果支持所提出的框架。

英文摘要:

This work introduces a transformation-based learner model for classification forests. The weak learner at each split node plays a crucial role in a classification tree. We propose to optimize the splitting objective by learning a linear transformation on subspaces using nuclear norm as the optimization criteria. The learned linear transformation restores a low-rank structure for data from the same class, and, at the same time, maximizes the separation between different classes, thereby improving the performance of the split function. Theoretical and experimental results support the proposed framework.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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