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    Chapter

    Dimensionality Reduction and Topic Modeling: From Latent Semantic Indexing to Latent Dirichlet Allocation and Beyond

    The bag-of-words representation commonly used in text analysis can be analyzed very efficiently and retains a great deal of useful information, but it is also troublesome because the same thought can be expres...

    Steven P. Crain, Ke Zhou, Shuang-Hong Yang, Hongyuan Zha in Mining Text Data (2012)