2008 JointLatentTopicModelsforTextan

(Nallapati et al., 2008) ⇒ Ramesh M. Nallapati, Amr Ahmed, Eric P. Xing, and William W. Cohen. (2008). “Joint Latent Topic Models for Text and Citations.” In: Proceedings of the 14th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2008). doi:10.1145/1401890.1401957

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Abstract

In this work, we address the problem of joint modeling of text and citations in the topic modeling framework. We present two different models called the Pairwise-Link-LDA and the Link-PLSA-LDA models.

The Pairwise-Link-LDA model combines the ideas of LDA [4] and Mixed Membership Block Stochastic Models [1] and allows modeling arbitrary link structure. However, the model is computationally expensive, since it involves modeling the presence or absence of a citation (link) between every pair of documents. The second model solves this problem by assuming that the link structure is a bipartite graph. As the name indicates, Link-PLSA-LDA model combines the LDA and PLSA models into a single graphical model.

Our experiments on a subset of Citeseer data show that both these models are able to predict unseen data better than the baseline model of Erosheva and Lafferty [8], by capturing the notion of topical similarity between the contents of the cited and citing documents. Our experiments on two different data sets on the link prediction task show that the Link-PLSA-LDA model performs the best on the citation prediction task, while also remaining highly scalable. In addition, we also present some interesting visualizations generated by each of the models.

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	Author	volume	Date Value	title	type	journal	titleUrl	doi	note	year
2008 JointLatentTopicModelsforTextan	Eric P. Xing William W. Cohen Amr Ahmed Ramesh M. Nallapati			Joint Latent Topic Models for Text and Citations				10.1145/1401890.1401957