Machine Learning

tau-FPL: Tolerance-Constrained Learning in Linear Time

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  • arXiv
    5 pts

    tau-FPL: Tolerance-Constrained Learning in Linear Time

    Learning a classifier with control on the false-positive rate plays a critical role in many machine learning applications. Existing approaches either introduce prior knowledge dependent label cost or tune parameters based on traditional classifiers, which lack consistency in methodology because they do not strictly adhere to the false-positive rate constraint. In this paper, we propose a novel scoring-thresholding approach, tau-False Positive Learning (tau-FPL) to address this problem. We show the scoring problem which takes the false-positive rate tolerance into accounts can be efficiently solved in linear time, also an out-of-bootstrap thresholding method can transform the learned ranking function into a low false-positive classifier. Both theoretical analysis and experimental results show superior performance of the proposed tau-FPL over existing approaches.

    tau-FPL: Tolerance-Constrained Learning in Linear Time
    by Ao Zhang, Nan Li, Jian Pu, Jun Wang, Junchi Yan, Hongyuan Zha
    https://arxiv.org/pdf/1801.04701v1.pdf

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