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arXiv 1702.04684stat.MLcs.LG
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使用双重距离的最近标签集用于多标签分类

Nearest Labelset Using Double Distances for Multi-label Classification

University of Waterloo(滑铁卢大学)

Hyukjun Gweon, Matthias Schonlau, Stefan Steiner

AI总结:

本文提出了一种名为NLDD的多标签分类新方法,通过最小化特征空间和标签空间双重距离的加权和来预测训练数据中的最近标签集,实验证明其在多个指标上优于现有方法。

摘要:

多标签分类是一种监督学习,其中一个实例可能同时属于多个标签。独立预测每个标签的做法因未利用标签间的相关性而受到批评。本文提出了一种新方法,使用双重距离的最近标签集(NLDD),它预测在训练数据中观察到的标签集,该标签集最小化在特征空间和标签空间中到新实例距离的加权和。权重指定了两种距离之间的相对权衡。权重通过以两种距离为函数的误分类标签数量的二项回归进行估计。模型参数通过最大似然估计。NLDD仅考虑训练数据中观察到的标签集,从而隐式地考虑了标签依赖性。在基准多标签数据集上的实验表明,所提方法在Hamming loss、0/1 loss和多标签准确率方面平均优于其他知名方法,并在F-measure上仅次于ECC排名第二。

英文摘要:

Multi-label classification is a type of supervised learning where an instance may belong to multiple labels simultaneously. Predicting each label independently has been criticized for not exploiting any correlation between labels. In this paper we propose a novel approach, Nearest Labelset using Double Distances (NLDD), that predicts the labelset observed in the training data that minimizes a weighted sum of the distances in both the feature space and the label space to the new instance. The weights specify the relative tradeoff between the two distances. The weights are estimated from a binomial regression of the number of misclassified labels as a function of the two distances. Model parameters are estimated by maximum likelihood. NLDD only considers labelsets observed in the training data, thus implicitly taking into account label dependencies. Experiments on benchmark multi-label data sets show that the proposed method on average outperforms other well-known approaches in terms of Hamming loss, 0/1 loss, and multi-label accuracy and ranks second after ECC on the F-measure.

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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