Abstract
Scientific articles are not born equal.Some generate an entire discipline while others make relatively fewer contributions.When reviewing scientific literatures, it would be useful to identify those important articles and understand how they influence others.In this paper, we introduce J-Index, a quantitative metric modeling topic-level academic influence.J-Index is calculated based on the novelty of each article as well as its contributions to the articles where it is cited.We devise a generative model named Reference Topic Model (RefTM) which jointly utilizes the textual content and citation information in scientific literatures.We show how to learn RefTM to discover both the novelty of each paper and the strength of each citation.Experiments on a collection of more than 420,000 research papers demonstrate that RefTM outperforms the state-of-the-art approaches in terms of topic coherence as well as prediction performance, and validate J-Index’s effectiveness of capturing topic-level academic influence in scientific literatures.
Li Song
Professor, IEEE Senior Member
Professor, Doctoral Supervisor, the Deputy Director of the Institute of Image Communication and Network Engineering of Shanghai Jiao Tong University, the Double-Appointed Professor of the Institute of Artificial Intelligence and the Collaborative Innovation Center of Future Media Network, the Deputy Secretary-General of the China Video User Experience Alliance and head of the standards group.