Detecting Common Discussion Topics Across Culture From News Reader Comments
Bei Shi, Wai Pang Lam, Lidong Bing, Yinqing Xu · 2016
News reader comments found in many on-line news websites are typically massive in amount.We investigate the task of Cultural-common Topic Detection (CTD), which is aimed at discovering common discussion topics from news reader comments written in different languages.We propose a new probabilistic graphical model called MCTA which can cope with the language gap and capture the common semantics in different languages.We also develop a partially collapsed Gibbs sampler which effectively incorporates the term translation relationship into the detection of cultural-common topics for model parameter learning.Experimental results show improvements over the state-of-the-art model.