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The analysis is divided into five periods covering the years 1996\u20132019. Latent Dirichlet allocation modeling was used to identify underlying topics based on 14,035 documents. An improved data-selection method was devised in order to generate a dynamic journal list that included influential journals for each period. Results indicate that (a) library science has become less prevalent over time, as there are no top topic clusters relevant to library issues since the period 2000\u20132005; (b) bibliometrics, especially citation analysis, is highly stable across periods, as reflected by the stable subclusters and consistent keywords; and (c) information retrieval has consistently been the dominant domain with interests gradually shifting to model-based text processing. Information seeking and behavior is also a stable field that tends to be dispersed among various topics rather than presented as its own subject. Information systems and organizational activities have been continuously discussed and have developed a closer relationship with e-commerce. Topics that occurred only once have undergone a change of technological context from the networks and Internet to social media and mobile applications.<\/jats:p>","DOI":"10.1007\/s11192-020-03721-0","type":"journal-article","created":{"date-parts":[[2020,10,10]],"date-time":"2020-10-10T15:02:52Z","timestamp":1602342172000},"page":"2561-2595","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":73,"title":["Evolution of research topics in LIS between 1996 and 2019: an analysis based on latent Dirichlet allocation topic model"],"prefix":"10.1007","volume":"125","author":[{"given":"Xiaoyao","family":"Han","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,10,10]]},"reference":[{"issue":"7","key":"3721_CR1","doi-asserted-by":"publisher","first-page":"947","DOI":"10.1002\/asi.20567","volume":"58","author":"F \u00c5str\u00f6m","year":"2007","unstructured":"\u00c5str\u00f6m, F. (2007). Changes in the LIS research front: Time-sliced cocitation analyses of LIS journal articles, 1990\u20132004. Journal of the American Society for Information Science and Technology, 58(7), 947\u2013957. https:\/\/doi.org\/10.1002\/asi.20567.","journal-title":"Journal of the American Society for Information Science and Technology"},{"key":"3721_CR2","unstructured":"Blei, D. M. (2009, September 1). Generative model [Graph]. Retrieved from http:\/\/videolectures.net\/site\/normal_dl\/tag=50740\/mlss09uk_blei_tm.pdf."},{"key":"3721_CR3","doi-asserted-by":"publisher","unstructured":"Blei, D. M., & Lafferty, J. D. (2006). Dynamic topic models. 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