Probabilistic Clustering using Maximal Matrix Norm Couplings
Probabilistic Clustering using Maximal Matrix Norm Couplings
复制标题
使用最大矩阵范数耦合的概率聚类
DOI:
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发表时间:
2018
期刊:
影响因子:
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通讯作者:
Lizhong Zheng
中科院分区:
文献类型:
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作者:
David Qiu;A. Makur;Lizhong Zheng
In this paper, we present a local information theoretic approach to explicitly learn probabilistic clustering of a discrete random variable. Our formulation yields a convex maximization problem for which it is NP-hard to find the global optimum. In order to algorithmically solve this optimization problem, we propose two relaxations that are solved via gradient ascent and alternating maximization. Experiments on the MSR Sentence Completion Challenge, MovieLens 100K, and Reuters21578 datasets demonstrate that our approach is competitive with existing techniques and worthy of further investigation.