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Stephen Chu

3 accepted papers

2017

Mixture-Rank Matrix Approximation for Collaborative Filtering

NeurIPS 2017poster

Low-rank matrix approximation (LRMA) methods have achieved excellent accuracy among today's collaborative filtering (CF) methods. In existing LRMA methods, the rank of user/item feature matrices is typically fixed, i.e., the same rank is adopted to describe all users/items. However, our studies show…

Cited by 42SourcePDFScholar
2016

Low-Rank Matrix Approximation with Stability

ICML 2016poster

Low-rank matrix approximation has been widely adopted in machine learning applications with sparse data, such as recommender systems. However, the sparsity of the data, incomplete and noisy, introduces challenges to the algorithm stability – small changes in the training data may significantly chang…

2015

A Matrix Decomposition Perspective to Multiple Graph Matching

ICCV 2015poster

Graph matching has a wide spectrum of real-world applications and in general is known NP-hard. In many vision tasks, one realistic problem arises for finding the global node mappings across a batch of corrupted weighted graphs. This paper is an attempt to connect graph matching, especially multi-gra…

Cited by 32PDFScholar