{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T09:12:55Z","timestamp":1780391575993,"version":"3.54.1"},"reference-count":38,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2022,12,27]],"date-time":"2022-12-27T00:00:00Z","timestamp":1672099200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the Fundamental Research Funds for the Central Universities","award":["E2E41902X2"],"award-info":[{"award-number":["E2E41902X2"]}]},{"name":"the Fundamental Research Funds for the Central Universities","award":["E2CX4735YZ"],"award-info":[{"award-number":["E2CX4735YZ"]}]},{"name":"the Scientific Foundation of Institute of Psychology, Chinese Academy of Sciences","award":["E2E41902X2"],"award-info":[{"award-number":["E2E41902X2"]}]},{"name":"the Scientific Foundation of Institute of Psychology, Chinese Academy of Sciences","award":["E2CX4735YZ"],"award-info":[{"award-number":["E2CX4735YZ"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Suicide, as an increasingly prominent social problem, has attracted widespread social attention in the mental health field. Traditional suicide clinical assessment and risk questionnaires lack timeliness and proactivity, and high-risk groups often conceal their intentions, which is not conducive to early suicide prevention. In this study, we used machine-learning algorithms to extract text features from Sina Weibo data and built a suicide risk-prediction model to predict four dimensions of the Suicide Possibility Scale\u2014hopelessness, suicidal ideation, negative self-evaluation, and hostility\u2014all with model validity of 0.34 or higher. Through this method, we can detect the symptoms of suicidal ideation in a more detailed way and improve the proactiveness and accuracy of suicide risk prevention and control.<\/jats:p>","DOI":"10.3390\/ijerph20010466","type":"journal-article","created":{"date-parts":[[2022,12,28]],"date-time":"2022-12-28T05:42:48Z","timestamp":1672206168000},"page":"466","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Suicide Possibility Scale Detection via Sina Weibo Analytics: Preliminary Results"],"prefix":"10.3390","volume":"20","author":[{"given":"Yun","family":"Gu","sequence":"first","affiliation":[{"name":"School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deyuan","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 101408, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2740-8420","authenticated-orcid":false,"given":"Xiaoqian","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China"},{"name":"Department of Psychology, University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"102161","DOI":"10.1016\/j.cpr.2022.102161","article-title":"Linguistic features of suicidal thoughts and behaviors: A systematic review","volume":"95","author":"Homan","year":"2022","journal-title":"Clin. 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