arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2002.08053cs.LGstat.ML
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Progressive Identification of True Labels for Partial-Label Learning

Southeast University(东南大学);RIKEN Center for Advanced Intelligence Project(理化学研究所革新智能综合研究中心);The University of Queensland(昆士兰大学);Nanyang Technological University(南洋理工大学);University of Tokyo(东京大学)

Jiaqi Lv, Miao Xu, Lei Feng, Gang Niu, Xin Geng, Masashi Sugiyama

英文摘要:

Partial-label learning (PLL) is a typical weakly supervised learning problem, where each training instance is equipped with a set of candidate labels among which only one is the true label. Most existing methods elaborately designed learning objectives as constrained optimizations that must be solved in specific manners, making their computational complexity a bottleneck for scaling up to big data. The goal of this paper is to propose a novel framework of PLL with flexibility on the model and optimization algorithm. More specifically, we propose a novel estimator of the classification risk, theoretically analyze the classifier-consistency, and establish an estimation error bound. Then we propose a progressive identification algorithm for approximately minimizing the proposed risk estimator, where the update of the model and identification of true labels are conducted in a seamless manner. The resulting algorithm is model-independent and loss-independent, and compatible with stochastic optimization. Thorough experiments demonstrate it sets the new state of the art.

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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