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Journal ArticleDOI
Subclass discriminant Nonnegative Matrix Factorization for facial image analysis
TL;DR: The proposed method incorporates appropriate discriminant constraints in the NMF decomposition cost function in order to address the problem of finding discriminant projections that enhance class separability in the reduced dimensional projection space, while taking into account subclass information.
Proceedings Article
Fusion of Similarity Data in Clustering
Tilman Lange,Joachim M. Buhmann +1 more
TL;DR: This work presents an approach to utilize multiple information sources in the form of similarity data for unsupervised learning, and employs a stability-based approach to ensure the selection of the most self-consistent hypothesis.
Journal ArticleDOI
Fast nonnegative matrix factorization and its application for protein fold recognition
Oleg Okun,Helen Priisalu +1 more
TL;DR: Nonnegative matrix factorization in combination with three nearest-neighbor classifiers for protein fold recognition is explored, with gains that can reach more than 4%, compared to the classification in the original, high-dimensional space.
Journal ArticleDOI
Neural variational matrix factorization for collaborative filtering in recommendation systems
Teng Xiao,Hong Shen,Hong Shen +2 more
TL;DR: A novel deep generative model that incorporates side information of both users and items to capture better latent representations of them for more effective collaborative-filtering recommendation and significantly outperforms the state-of-the-art methods on recommendation accuracy measured by Hit Ratio and Normalized Discounted Cumulative Gain respectively.
Journal ArticleDOI
Compact and Discriminative Descriptor Inference Using Multi-Cues
TL;DR: A descriptor learning framework to optimize the descriptors at the source by learning a projection from multiple descriptors' spaces to a new Euclidean space to enhance the descriptive and discriminative ability from multiple cues.
Related Papers (5)
Learning the parts of objects by non-negative matrix factorization
Positive matrix factorization: A non-negative factor model with optimal utilization of error estimates of data values†
Pentti Paatero,Unto Tapper +1 more