Abstract:Document embeddings, created with methods ranging from simple heuristics to statistical and deep models, are widely applicable. Bagof-vectors models for documents include the mean and quadratic approaches (Torki, 2018). We present evidence that quadratic statistics alone, without the mean information, can offer superior accuracy, fast document comparison, and compact document representations. In matching news articles to their comment threads, low-rank representations of only 3-4 times the size of the mean vec… Show more
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