摘要：

【目的】 调查开放获取期刊目录(DOAJ)收录的所有开放获取(OA)期刊的可达性和稳定性,以期为OA期刊长期保存和访问提供技术支持和参考。【方法】 采用网络调研法,结合Excel宏和人工测试,对2017年5月8日下载的DOAJ元数据中全部期刊进行可达性和稳定性的调查。该调查为期3个月,分3次进行。【结果】 在3次调查中,能够成功访问至少1次的期刊共9104种,占样本期刊总数的96.4%。虽然第1次和第2次调查的可达率接近,但是从单个期刊角度分析,在第1次调查中可达的期刊,在第2次调查中未必可达。【结论】 DOAJ收录的OA期刊可达性较高,但其稳定性还有待提高。经济发达的国家或地区的OA期刊数量较多、可达性较高。虽然各学科OA期刊数量差异较大,但是各学科期刊可达性差别不大。

关键词: 开放获取, 开放获取期刊目录, 可达性, 开放获取期刊, 网络引文

Abstract:

[Purposes] This paper aims to investigate the accessibility and stability of all open access (OA) journals indexed in directory of open access journals (DOAJ), and to provide the basis and references for the research about long-term preservation and access of OA journals. [Methods] We combined Excel macro and manual testing to investigate accessibility and stability of OA journals in the DOAJ metadata downloaded on May 8, 2017 by the network survey method. The survey was conducted 3 times for 3 months. [Findings] Among these 3 surveys, 9104 journals could be accessed at least 1 time, taking up to 96.4%. Although the accessibility rates of the first and second surveys are similar, it can be concluded from the perspective of a single journal that journals accessible in the first survey may not be reachable in the second survey. [Conclusions] The accessibility of the OA journals indexed in DOAJ is high, but the sustainability remains to be improved. In developed countries or regions, the number of OA journals is large, and the accessibility is high. There exists great differences in the number of OA journals in various disciplines, but little difference in accessibility.

Key words: Open access, Directory of open access journal, Accessibility, Open access journal, Web citation