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Based on proposals by Gl\u00e4nzel et al. (Gl\u00e4nzel et al., Scientometrics 44:427\u2013439, 1999a, Gl\u00e4nzel et al., Scientometrics 46:431\u2013441, 1999b, Gl\u00e4nzel, W., Thijs, B., &amp; Huang, Y. (2021). Improving the precision of subject assignment for disparity measurement in studies of interdisciplinary research. In: W. Gl\u00e4nzel, S. Heeffer, PS. Chi, R. Rousseau (eds), Proceedings of the 18th International Conference of the International Society of Scientometrics and Informetrics (ISSI 2021), Leuven University Press, pp. 453\u2013464. <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"uri\" xlink:href=\"https:\/\/kuleuven.limo.libis.be\/discovery\/fulldisplay?docid=lirias3394551&amp;context=SearchWebhook&amp;vid=32KUL_KUL:Lirias&amp;search_scope=lirias_profile&amp;tab=LIRIAS&amp;adaptor=SearchWebhook&amp;lang=en\">https:\/\/kuleuven.limo.libis.be\/discovery\/fulldisplay?docid=lirias3394551&amp;context=SearchWebhook&amp;vid=32KUL_KUL:Lirias&amp;search_scope=lirias_profile&amp;tab=LIRIAS&amp;adaptor=SearchWebhook&amp;lang=en<\/jats:ext-link>), some additional parameters are established that allow different results to be obtained depending on how category membership is weighted or how the acceptance thresholds for multiple assignments are established. Various classifications are obtained, and then compared with each other, with the original ASJC Scopus journal classification, and with the AAC (Author\u2019s Assignation Collection) classification of a previous study (\u00c1lvarez-Llorente et al., \u00c1lvarez-Llorente et al., Profesional de la Informaci\u00f3n, 2023) in which the papers\u2019 corresponding authors assign them the most appropriate categories. Classifications in which a high threshold is set for allowing assignments to multiple categories, combined with the use of first- and second-generation references and averaging over the number of references, provide the most promising results, improving over other reference-based reclassification proposals in terms of granularity, and over the Scopus classification itself in such aspects as the homogeneity of the publications assigned to a category. They also show greater coincidence with the AAC classification.<\/jats:p>","DOI":"10.1007\/s11192-024-05030-2","type":"journal-article","created":{"date-parts":[[2024,5,1]],"date-time":"2024-05-01T14:48:10Z","timestamp":1714574890000},"page":"3493-3515","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["New fractional classifications of papers based on two generations of references and on the ASJC scopus scheme"],"prefix":"10.1007","volume":"129","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4901-3457","authenticated-orcid":false,"given":"Jes\u00fas M.","family":"\u00c1lvarez-Llorente","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4821-9768","authenticated-orcid":false,"given":"Vicente P.","family":"Guerrero-Bote","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0255-8628","authenticated-orcid":false,"given":"F\u00e9lix","family":"de Moya-Aneg\u00f3n","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2024,5,1]]},"reference":[{"issue":"1","key":"5030_CR1","doi-asserted-by":"publisher","first-page":"27","DOI":"10.1002\/asi.20936","volume":"60","author":"BM Althouse","year":"2009","unstructured":"Althouse, B. 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