作为全球领先的科技信息服务提供商，科睿唯安从汤森路透手中接过了Web of Science，并对其进行了大量的变革，引进了新的数据库Emerging Science Citation Index (ESCI)，作为期刊入选SCI之前的一个缓冲数据库，它的出现，使期刊避开了要么一步到位成为SCI，要么直接就被剔除的尴尬。
被淘汰的期刊通过再次的培育，修正，经营，被重新评估后可再次进入核心集。这一标准再次证明了Web of Science 的动态监控系统。Web of Science 编辑团队上半年专注于新期刊的评估，下半年专注于已经入选的期刊的再评估。 所以，中国新创办的英文学术期刊，建议于上半年进行申请评审，从而当年就可以拿到评审结果。 那么这些已经被core collection检索的期刊，再接受重新评估期间，是否正常检索本刊的文章呢？Clarivate是这样回答我们的： “If concerns are raised regarding an indexed journal, either by users or through monitoring by our in-house editors, the journal will be re-evaluated according to our selection criteria. Where significant concerns are raised about the quality of the content published by the journal, new content will not be indexed during the course of the re-evaluation. When the evaluation is complete, the publisher will be informed of the outcome and the journal will either:
be removed from coverage if it no longer meets the quality criteria
or remain covered if it continues to meet the quality criteria.
If the journal meets the quality criteria, any missing content will be indexed. If the journal is removed from coverage, content will not be backfilled. In the most serious cases of breaches in the journal’s editorial standards, as determined by our selection criteria, published content may be removed from Web of Science™. Timeframes for completing a re-evaluation will depend on the particular circumstances of each case.”(引自原文https://clarivate.com/webofsciencegroup/journal-evaluation-process-and-selection-criteria/） 首先，任何一个用户（指的是任何一位可以接入、使用WOS数据库的人）或内部审核人员如果已收录的期刊提出有证据性、逻辑性的质疑，Web of Science则会根据选择标准重新评估。若期刊真的存在重大问题，期刊进入On Hold（点击链接了解On Hold期刊），则在评估过程中不会对新的内容进行检索。评估完成后，
