PDF-Topics over Time A NonMarkov ContinuousTime Model of Topical Trends Xuerui Wang Andrew McCallum Department of Computer Science University of Massachusetts Amherst MA xueruimccallum cs

PDF-Topics over Time A NonMarkov ContinuousTime Model of Topical Trends Xuerui Wang Andrew McCallum Department of Computer Science University of Massachusetts Amherst MA  xueruimccallum cs thumbnail
umassedu ABSTRACT This paper presents an LDAstyle topic model that captures not only the lowdimensional structure of data but also how the structure changes over

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