A
Ang Zhang
Researcher at Jilin University
Publications - 4
Citations - 119
Ang Zhang is an academic researcher from Jilin University. The author has contributed to research in topics: Topic model & Copula (linguistics). The author has an hindex of 3, co-authored 4 publications receiving 78 citations.
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Journal ArticleDOI
Filtering out the noise in short text topic modeling
TL;DR: A common semantics topic model (CSTM) is proposed, which is a new type of topic, namely common topic, to gather the noise words in short texts to solve the sparsity and noise problems.
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Exploring coherent topics by topic modeling with term weighting
TL;DR: Experimental results show that weighting words can effectively improve the topic modeling performance over both short texts and normal long texts, and the proposed CEW significantly outperforms the existing term weighting schemes, since it further considers which words are informative.
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Relational Biterm Topic Model: Short-Text Topic Modeling using Word Embeddings
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Fast copula variational inference
TL;DR: In FCVI, the gradient of CVI objective is derived by an expectation of the mean-field factorisation, enabling to reduce the sampling complexity from to and experimental results demonstrate that FCVI is on a par with CVI, but runs much faster.