Krishnan S. Kumar

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Disambiguating entity references by annotating them with unique ids from a catalog is a critical step in the enrichment of unstructured content. In this paper, we show that topic models, such as Latent Dirichlet Allocation (LDA) and its hierarchical variants, form a natural class of models for learning accurate entity disambiguation models from(More)
Comments are supported by several web sites to increase user participation. Users can usually comment on a variety of media types - photos, videos, news articles, blogs, etc. Comment spam is one of the biggest challenges facing this feature. The traditional approach to combat spam is to train classifiers using various machine learning techniques. Since the(More)
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