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• W3088934142 abstract "In this paper, a non-negative matrix factorization feature expansion (NMFFE) approach was proposed to overcome the feature-sparsity issue when expanding features of short-text. First, we took the internal relationships of short texts and words into account when segmenting words from texts and constructing their relationship matrix. Second, we utilized the Dual regularization non-negative matrix tri-factorization (DNMTF) algorithm to obtain the words clustering indicator matrix, which was used to get the feature space by dimensionality reduction methods. Thirdly, words with close relationship were selected out from the feature space and added into the short-text to solve the sparsity issue. The experimental results showed that the accuracy of short text classification of our NMFFE algorithm increased 25.77%, 10.89%, and 1.79% on three data sets: Web snippets, Twitter sports, and AGnews, respectively compared with the Word2Vec algorithm and Char-CNN algorithm. It indicated that the NMFFE algorithm was better than the BOW algorithm and the Char-CNN algorithm in terms of classification accuracy and algorithm robustness." @default.
• W3088934142 created "2020-10-01" @default.
• W3088934142 creator A5029066122 @default.
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• W3088934142 date "2020-09-21" @default.
• W3088934142 modified "2023-10-18" @default.
• W3088934142 title "Short‐text feature expansion and classification based on nonnegative matrix factorization" @default.
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• W3088934142 doi "https://doi.org/10.1002/int.22290" @default.
• W3088934142 hasPublicationYear "2020" @default.
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