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- W2950642675 abstract "Archetypal analysis and non-negative matrix factorization (NMF) are staples in a statisticians toolbox for dimension reduction and exploratory data analysis. We describe a geometric approach to both NMF and archetypal analysis by interpreting both problems as finding extreme points of the data cloud. We also develop and analyze an efficient approach to finding extreme points in high dimensions. For modern massive datasets that are too large to fit on a single machine and must be stored in a distributed setting, our approach makes only a small number of passes over the data. In fact, it is possible to obtain the NMF or perform archetypal analysis with just two passes over the data." @default.
- W2950642675 created "2019-06-27" @default.
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- W2950642675 date "2014-05-16" @default.
- W2950642675 modified "2023-09-27" @default.
- W2950642675 title "A geometric approach to archetypal analysis and non-negative matrix factorization" @default.
- W2950642675 doi "https://doi.org/10.48550/arxiv.1405.4275" @default.
- W2950642675 hasPublicationYear "2014" @default.
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