41 citations · 44 across the 9 of their papers we have counts for
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stat.ML2020★ 2 cited
Gaussian Hierarchical Latent Dirichlet Allocation: Bringing Polysemy Back
Takahiro Yoshida, Ryohei Hisano, Takaaki Ohnishi
Topic models are widely used to discover the latent representation of a set of documents. The two canonical models are latent Dirichlet allocation, and Gaussian latent Dirichlet al…
stat.ML2012★ 41 cited
High quality topic extraction from business news explains abnormal financial market volatility
Ryohei Hisano, Didier Sornette, Takayuki Mizuno +2
Understanding the mutual relationships between information flows and social activity in society today is one of the cornerstones of the social sciences. In financial economics, the…