Generalized Low Rank Models

Generalized Low Rank Models
Author :
Publisher :
Total Pages : 118
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ISBN-10 : 1680831410
ISBN-13 : 9781680831412
Rating : 4/5 (412 Downloads)

Book Synopsis Generalized Low Rank Models by : Madeleine Udell

Download or read book Generalized Low Rank Models written by Madeleine Udell and published by . This book was released on 2016 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principal components analysis (PCA) is a well-known technique for approximating a tabular data set by a low rank matrix. Here, we extend the idea of PCA to handle arbitrary data sets consisting of numerical, Boolean, categorical, ordinal, and other data types. This framework encompasses many well-known techniques in data analysis, such as nonnegative matrix factorization, matrix completion, sparse and robust PCA, k-means, k-SVD, and maximum margin matrix factorization. The method handles heterogeneous data sets, and leads to coherent schemes for compressing, denoising, and imputing missing entries across all data types simultaneously. It also admits a number of interesting interpretations of the low rank factors, which allow clustering of examples or of features. We propose several parallel algorithms for fitting generalized low rank models, and describe implementations and numerical results.


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