Various kinds of metrics used for the quantitative evaluation of scholarly journals are reviewed. The impact factor and related metrics including the immediacy index and the aggregate impact factor, which are provided by the Journal Citation Reports, are explained in detail. The Eigenfactor score and the article influence score are also reviewed. In addition, journal metrics such as CiteScore, Source Normalized Impact per Paper, SCImago Journal Rank, h-index, and g-index are discussed. Limitations and problems that these metrics have are pointed out. We should be cautious to rely on those quantitative measures too much when we evaluate journals or researchers.

中文翻译：

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期刊指标概览

审查了用于学术期刊定量评估的各种指标。Journal Citation Reports 提供的影响因子和相关指标，包括即时性指数和综合影响因子，有详细的解释。还审查了特征因子得分和文章影响力得分。此外，还讨论了诸如 CiteScore、每篇论文的来源标准化影响、SCImago 期刊排名、h-index 和 g-index 等期刊指标。指出了这些指标的局限性和问题。当我们评估期刊或研究人员时，我们应该谨慎地过度依赖这些量化指标。