学术文献数据集

1、收录期刊15000余种，文章总量达7800余万篇，年更新量180余万篇；收录年份从1989年至今，部分可追溯到1920年； 2、期刊资源为国内正式出版发行的学术期刊，语言载体主要为中文，部分刊物为英文； 3、拥有完善的数字化加工体系，数据源文献达到15个字段深度，参考文献达到10个字段深度，提供数据字典便于标识与利用； 4、学科门类覆盖齐全，参照中图法，共分为35个一级学科，457个二级学科。1. Covers more than 15,000 academic journals, with a total collection of over 78 million articles and an annual addition of over 1.8 million articles. The coverage spans from 1989 to the present, with some records traceable to as early as 1920. 2. All journal resources are formally published domestic academic journals, primarily in Chinese, with a small number of journals published in English. 3. It boasts a sophisticated digital processing system, with 15-field depth for source literature and 10-field depth for reference literature, and provides a dedicated data dictionary to facilitate data identification and utilization. 4. The dataset covers comprehensive academic disciplines, which are classified into 35 first-level disciplines and 457 second-level disciplines in accordance with the Chinese Library Classification (CLC).

搜集汇总

背景与挑战

背景概述

该学术文献数据集规模庞大，收录了15000余种期刊、7800余万篇文章，年更新量达180余万篇，覆盖年份从1989年至今，部分可追溯到1920年，以中文为主，部分为英文。数据集拥有完善的数字化加工体系，数据源文献和参考文献分别达到15和10个字段深度，并提供数据字典，便于标识与利用。学科门类齐全，参照中图法分为35个一级学科和457个二级学科，确保全面覆盖各学术领域。