摘要：

【目的】 分析国际期刊论文层面的研究主题，有助于准确获取领域内全球主题分布特点和发展现状，为中国科技期刊建设和学术水平提升提供借鉴和参考。【方法】 以图书情报学国际期刊论文为研究对象，借助《CWTS莱顿大学排名》主题分类，开展论文层面的研究主题定位。根据研究主题发现主题集中和主题分散的期刊，分别分析这些期刊的主题分布特点和研究现状。【结果】 图书情报学国际期刊主要涉及17个微观领域。图书馆学期刊多为主题集中期刊，研究领域包括信息素养、网络搜索、知识组织、健康科学、同行评议等。情报学期刊多为主题分散期刊，研究领域包括数字化学习、组织研究、文献计量分析、在线评论等。【结论】 基于论文层面的学科主题定位和分析可以有效识别出学科主要研究主题，发现跨学科研究和新兴研究领域，为中国科技期刊提升论文利用率提供思路，为期刊编辑制定论文选题提供方向，为索引机构与搜索引擎提供精准主题定位，也为作者选刊、投稿提供帮助。

关键词: 论文层面分类体系, CWTS排名, 期刊布局, 图书情报学期刊, 跨学科分析

Abstract:

[Purposes] This study analyzes the research topics of papers published in international journals, aiming to reveal the distribution characteristics and development status of research topics in the globe and provide references for improving the academic quality of Chinese scientific journals. [Methods] The paper-level classification system of CWTS Leiden Ranking was employed to study the research topics of papers published in the international journals in library science and information science. According to the research topics, we classified the journals with concentrated topics and scattered topics and analyzed the distribution characteristics and research status of these topics. [Findings] The international journals in library science and information science mainly involve 17 micro-fields. Most journals in library science have concentrated topics, which mainly include information literacy, network search, knowledge organization, health science, and peer review. The journals in information science mostly publish scattered topics, which include digital learning, organizational research, bibliometric analysis, and online review. [Conclusions] Through the positioning and analysis of research topics at the paper level, we can identify the main research topics and discover interdisciplinary and emerging research areas. It provides ideas for improving the utilization rate of papers in Chinese scientific journals, directions for topic design by journal editors, accurate topic positioning for indexing agencies and search engines, and help for authors to select journals and submit manuscripts.

Key words: Paper-level classification system, CWTS ranking, Journal layout, Journal in library science and information science, Interdisciplinary analysis