933彩票体育_寒烈_933彩票体育最新章节_在线阅读-小说频道

恭喜果郡王

作者主题模型及其改进的方法与应用研究综述 A Review of Methods and Applications for Author-Topic Model and Its Improved Models 作者：徐涵 1,2 刘小平 1,2 作者单位： 1. 中国科学院文献情报中心北京 100190 2. 中国科学院大学经济与管理学院图书情报与档案管理系北京 100190 提交时间： 2023-07-26 摘要: [目的/意义]作者主题模型作为近年来计算机领域关注度较高的新型概率模型，在文本挖掘与自然语言处理等方向已有广泛应用。分析国内外作者主题模型及其改进的思路与应用，更好地把握其研究现状，以期为计算机、图书情报等相关领域科研人员提供参考。[方法/过程]本文选取Web of Science核心数据库、DBLP及中国知网（CNKI）数据库作为文献来源，通过制定检索规则、去重及人工判读等操作提炼出关于作者主题模型及其改进方法的文献集，从模型应用过程的视角，结合文献分析法对现有研究进行总结归纳。[结果/结论]通过分析发现，现有相关研究已形成较为完整的分析流程，且模型的改进角度、适用领域也日益多样化。但性能优化、模型评价指标的规范完善以及在图书情报领域的进一步应用等方面仍有待深入探索。 Abstract: [Purpose/significance] Author-Topic model, as a new probabilistic model which has a high degree of attention in computer science, has been widely applied in text mining, natural language processing and other fields in recent years. This paper analyzes the ideas and applications of AT model and its improved models to grasp its research status and provide reference and ideas for researchers in computer science, library and information science or some other related fields. [Method/process] Using data sets on Web of Science Core Collection, DBLP and CNKI (China Academic Journals Full-text Database), a literature collection on Author-Topic model and its improved models is constructed through the establishment of retrieval rules, data de-duplication, artificial judgment and other operations. This paper summarizes the existing research based on literature analysis method from the perspective of the application process of the model. [Result/conclusion] The results show that the existing related research has formed a comparatively complete analysis process and the improvement angle and application area of the models are increasingly diversified. However, some problems, such as performance optimization, standardization and perfection and further application in the field of library and information science, still need to be explored in depth. 作者主题模型主题演化社区发现模型评估期刊：图书情报工作分类：图书馆学、情报学 >> 图书馆学引用： ChinaXiv:202307.00532 (或此版本 ChinaXiv:202307.00532V1 ) doi:10.12074/202307.00532 CSTR:32003.36.ChinaXiv.202307.00532.V1 推荐引用方式：徐涵,刘小平.(2023).作者主题模型及其改进的方法与应用研究综述.图书情报工作.[ChinaXiv:202307.00532] 版本历史 [V1] 2023-07-26 17:46:50 ChinaXiv:202307.00532V1 下载全文

明开夜合职场

歪果仁榨菜

伟大，无需多言！“处于地洞中的男主女主相互救赎”，外加一点象征着“小规模奇迹”的轻魔幻现实主义，这样的故事简直百看不厌。先抑后扬，一气呵成，没有皆大欢喜的包饺子结局，没有机械降神般的突兀转折，本书只是单纯地描绘了一个苦涩到近乎压抑的故事，却让人始终难以忘怀... ( 展开

HaoZi-三角洲行动

在听涅磐的where did you sleep last night，爱死了这样的暗沉的歇斯底里。我想到了那个外表暗沉却有着排山倒海般深情的希斯克里夫，这首歌是不是特别适合他？多少个他辗转反侧的黑夜，他最想对着他心爱的凯瑟琳说的，应该就是这句话吧？记得甫上大学时，刚刚摆脱了沉重学业... ( 展开