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The existing dedicated social networking services for health mainly focus on sharing, but not categorising and extracting. In this research, we construct an environment for social knowledge sharing and expert referring. Analysing queries from online public health databases and the factors of health similarity, social reliability and social intimacy, we extract health knowledge to recommend relevant social knowledge (also called threads) and helpful experts providing consulting. Specifically, the proposed social diagnosis mechanism helps the health seeker to identify relevant threads and recommends enthusiastic experts for healthcare support. Experimental results reveal that the proposed mechanism can effectively improve healthcare knowledge sharing and realise diagnosis support from the crowd.<\/jats:p>","DOI":"10.1177\/01655515231199929","type":"journal-article","created":{"date-parts":[[2023,10,19]],"date-time":"2023-10-19T07:35:38Z","timestamp":1697700938000},"page":"720-743","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["A social diagnosis mechanism for healthcare knowledge sharing"],"prefix":"10.1177","volume":"51","author":[{"given":"Lien-Fa","family":"Lin","sequence":"first","affiliation":[{"name":"Department of Computer Science and Information Engineering, National Kaohsiung University of Science and Technology"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4501-6412","authenticated-orcid":false,"given":"Yung-Ming","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Information Management, National Yang Ming Chiao Tung University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yen-Chen","family":"Lin","sequence":"additional","affiliation":[{"name":"Institute of Information Management, National Yang Ming Chiao Tung University"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2023,10,19]]},"reference":[{"key":"e_1_3_2_2_2","unstructured":"Duggan M Smith A. 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