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Interpretable Topic Extraction and Word Embedding Learning Using Row-Stochastic DEDICOM

Abstract : The DEDICOM algorithm provides a uniquely interpretable matrix factorization method for symmetric and asymmetric square matrices. We employ a new row-stochastic variation of DEDICOM on the pointwise mutual information matrices of text corpora to identify latent topic clusters within the vocabulary and simultaneously learn interpretable word embeddings. We introduce a method to efficiently train a constrained DEDICOM algorithm and a qualitative evaluation of its topic modeling and word embedding performance.
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Submitted on : Thursday, November 4, 2021 - 3:58:20 PM
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Lars Hillebrand, David Biesner, Christian Bauckhage, Rafet Sifa. Interpretable Topic Extraction and Word Embedding Learning Using Row-Stochastic DEDICOM. 4th International Cross-Domain Conference for Machine Learning and Knowledge Extraction (CD-MAKE), Aug 2020, Dublin, Ireland. pp.401-422, ⟨10.1007/978-3-030-57321-8_22⟩. ⟨hal-03414746⟩



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