Structures or Texts? A Dynamic Gating Method for Expert Finding in CQA Services

  • Zhiqiang LiuEmail author
  • Yan Zhang
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10828)


Expert finding plays an important role in community question answering websites. Previously, most works focused on assessing the user expertise scores mainly from their past question-answering semantic features. In this work, we propose a gating mechanism to dynamically combine structural and textual representations based on past question-answering behaviors. We also use some user activities including temporal behaviors as the features, which determine the gate values. We evaluate the performance of our method on the well-known question answering sites Stackexchange and Quora. Experiments show that our approach can improve the performance on expert finding tasks.


Expert finding Representation learning Gating mechanism Neural Tensor Network 



This work is supported by NSFC under Grant No.61532001, and MOE-ChinaMobile under Grant No.MCM20170503.


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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Electronics Engineering and Computer SciencePeking UniversityBeijingChina
  2. 2.Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijingChina

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