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HNRWalker: recommending academic collaborators with dynamic transition probabilities in heterogeneous networks

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Abstract

Multi-source information not only helps to solve the problem of sparse data but also improves recommendation performance in terms of personalization and accuracy. However, how to utilize it for facilitating academic collaboration effectively has been little studied in previous studies. Traditional mechanisms such as random walk algorithms are often assumed to be static which ignores crucial features of the linkages among various nodes in multi-source information networks. Therefore, this paper builds a heterogeneous network constructed by institution network and co-author network and proposes a novel random walk model for academic collaborator recommendation. Specifically, four neighbor relationships and the corresponding similarity assessment measures are identified according to the characteristics of different relationships in the heterogeneous network. Further, an improved random walk algorithm known as “Heterogeneous Network-based Random Walk” (HNRWalker) with dynamic transition probability and a new rule for selecting candidates are proposed. According to our validation results, the proposed method performs better than the benchmarks in improving recommendation performances.

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Acknowledgements

This research was supported by grants from National Natural Science Foundation of China [71701134], Humanity and Social Science Youth Foundation of Ministry of Education of China [16YJC630153], Guangdong Basic and Applied Basic Research Foundation [2019A1515011392] and Natural Science Foundation of Guangdong Province of China [2017A030310427].

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Authors and Affiliations

  1. College of Management, Shenzhen University, Shenzhen, Guangdong, People’s Republic of China

    Chen Yang, Tingting Liu & Xiaohong Chen

  2. School of Information Management, Nanjing University, No. 163 Xianlin Rd, Qixia District, Nanjing, Jiangsu, People’s Republic of China

    Yiyang Bian

  3. School of Management, Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China

    Yuewen Liu

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  1. Chen Yang
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  2. Tingting Liu
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Correspondence to Yiyang Bian.

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Yang, C., Liu, T., Chen, X. et al. HNRWalker: recommending academic collaborators with dynamic transition probabilities in heterogeneous networks. Scientometrics 123, 429–449 (2020). https://doi.org/10.1007/s11192-020-03374-z

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