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Handling Collocations in Hierarchical Latent Tree Analysis for Topic Modeling



Leonard K. M. Poon , Nevin L. Zhang , Haoran Xie , Gary Cheng


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Latent Tree Models for Hierarchical Topic Detection



Peixian Chen , Nevin L. Zhang , Tengfei Liu , Leonard K. M. Poon , Zhourong Chen , Farhan Khawar

* 46 pages 

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Latent Tree Analysis



Nevin L. Zhang , Leonard K. M. Poon

* 7 pages, 5 figures 

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Topic Browsing for Research Papers with Hierarchical Latent Tree Analysis



Leonard K. M. Poon , Nevin L. Zhang


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Progressive EM for Latent Tree Models and Hierarchical Topic Detection



Peixian Chen , Nevin L. Zhang , Leonard K. M. Poon , Zhourong Chen


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A Model-Based Approach to Rounding in Spectral Clustering



Leonard K. M. Poon , April H. Liu , Tengfei Liu , Nevin Lianwen Zhang

* Appears in Proceedings of the Twenty-Eighth Conference on Uncertainty in Artificial Intelligence (UAI2012) 

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