Abstract
The existing online medical platforms are striving to provide various kinds of services to satisfy users' dynamic demands. With the exponential growth of information, users usually suffer from information overload, confronting with high search costs and time costs. In order to reduce users' search cost and assist users to retrieve appropriate medical service efficiently, recommending online medical services to users smarter and faster has becoming a valuable research topic. Unfortunately, certain imprecise and subjective information always exist in obtaining users' preferences. Moreover, the effect of social trust on an individual user's decision-making is often omitted in previous methods, which may result in inaccurate recommendation results. This study proposes a method for recommending the most appropriate medical services to users, in which users' linguistic preferences, assessments and social trust information are considered. The procedure of the proposed method consists of two steps: (1) to acquire various users' linguistic preference based on Best–Worst Method (BWM) and fuzzy set theory, and (2) to recommend the corresponding medical services using trust-aware collaborative filtering (CF) technique. Firstly, the fuzzy BWM is adopted to determine the attribute weights based on various users' linguistic preferences. Secondly, by combing the linguistic evaluation matrix and users' social trust information, the trust-based similarity network is constructed, which is then merged into CF technique for predicting final rating and recommending online medical services. Finally, a case study is conducted to demonstrate the applications of the proposed method.
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Funding
This study was partially supported by the National Natural Science Foundation of China (Program Nos. 71974154), the Natural Science Foundation of Shaanxi Province (Program No. 2019JM-110), the Shaanxi Provincial Youth Talent Support Program, and the Fundamental Research Funds for the Central Universities (Project Nos. JB190604, 20101235636). Also sponsored by the Seed Foundation of Innovation Practice for Graduate Students in Xidian University.
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Author Xi Chen declares that she has no conflict of interest. Author Yuan Luo declares that she has no conflict of interest. Author Qirui Wu declares that he has no conflict of interest. Author WenBo Zhang declares that he has no conflict of interest.
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Chen, X., Luo, Y., Wu, Q. et al. How to Recommend Online Medical Service Smarter and Faster? A Novel Decision-Making Method Considering Users' Linguistic Preference and Trust Propagation. Int. J. Fuzzy Syst. 25, 2828–2846 (2023). https://doi.org/10.1007/s40815-023-01533-x
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DOI: https://doi.org/10.1007/s40815-023-01533-x