{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T07:55:38Z","timestamp":1769586938643,"version":"3.49.0"},"reference-count":46,"publisher":"Emerald","issue":"2\/3","license":[{"start":{"date-parts":[[2023,5,1]],"date-time":"2023-05-01T00:00:00Z","timestamp":1682899200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.emerald.com\/insight\/site-policies"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["EL"],"published-print":{"date-parts":[[2023,5,24]]},"abstract":"<jats:sec><jats:title content-type=\"abstract-subheading\">Purpose<\/jats:title><jats:p>The purpose of this study is to investigate how book group recommendations can be used as a meaningful way to suggest suitable books to users, given the increasing number of individuals engaging in sharing and discussing books on the web.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Design\/methodology\/approach<\/jats:title><jats:p>The authors propose reviews fine-grained classification (CFGC) and its related models such as CFGC1 for book group recommendation. These models can categorize reviews successively by function and role. Constructing the BERT-BiLSTM model to classify the reviews by function. The frequency characteristics of the reviews are mined by word frequency analysis, and the relationship between reviews and total book score is mined by correlation analysis. Then, the reviews are classified into three roles: celebrity, general and passerby. Finally, the authors can form user groups, mine group features and combine group features with book fine-grained ratings to make book group recommendations.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Findings<\/jats:title><jats:p>Overall, the best recommendations are made by Synopsis comments, with the accuracy, recall, F-value and Hellinger distance of 52.9%, 60.0%, 56.3% and 0.163, respectively. The F1 index of the recommendations based on the author and the writing comments is improved by 2.5% and 0.4%, respectively, compared to the Synopsis comments.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Originality\/value<\/jats:title><jats:p>Previous studies on book recommendation often recommend relevant books for users by mining the similarity between books, so the set of book recommendations recommended to users, especially to groups, always focuses on the few types. The proposed method can effectively ensure the diversity of recommendations by mining users\u2019 tendency to different review attributes of books and recommending books for the groups. In addition, this study also investigates which types of reviews should be used to make book recommendations when targeting groups with specific tendencies.<\/jats:p><\/jats:sec>","DOI":"10.1108\/el-11-2022-0252","type":"journal-article","created":{"date-parts":[[2023,4,27]],"date-time":"2023-04-27T07:39:32Z","timestamp":1682581172000},"page":"326-346","source":"Crossref","is-referenced-by-count":4,"title":["A group recommender system for books based on fine-grained classification of comments"],"prefix":"10.1108","volume":"41","author":[{"given":"Jiaxin","family":"Ye","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huixiang","family":"Xiong","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinpeng","family":"Guo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xuan","family":"Meng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"140","published-online":{"date-parts":[[2023,5,1]]},"reference":[{"key":"key2023052306100840600_ref001","first-page":"2952","article-title":"Managing diversity in Airbnb search","year":"2020"},{"key":"key2023052306100840600_ref002","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1016\/j.ins.2016.03.006","article-title":"Personalized recommendation of stories for commenting in forum-based social media","volume":"352\/353","year":"2016","journal-title":"Information Sciences"},{"key":"key2023052306100840600_ref003","first-page":"111","article-title":"Group-based recipe recommendations: analysis of data aggregation strategies","year":"2010"},{"key":"key2023052306100840600_ref004","doi-asserted-by":"crossref","unstructured":"Chang, Z., Arefin, M.S. and Morimoto, Y. 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