Learning topics by simulation of a stochastic cellular automaton
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United States of America Patent
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Aug 27, 2019
Grant Date -
Dec 1, 2016
app pub date -
Nov 4, 2015
filing date -
May 29, 2015
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Abstract
Herein is described an unsupervised learning method to discover topics and reduce the dimensionality of documents by designing and simulating a stochastic cellular automaton. A key formula that appears in many inference methods for LDA is used as the local update rule of the cellular automaton. Approximate counters may be used to represent counter values being tracked by the inference algorithms. Also, sparsity may be used to reduce the amount of computation needed for sampling a topic for particular words in the corpus being analyzed.
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