基于PLOS ALM的altmetrics指标可用性分析

目的/意义] altmetrics有利于完善新环境下的科研评价体系,但由于数据易被操控、用户行为具有偶然性、数据来源则具有不稳定性等因素,其可用性受到质疑。本文试图基于实际数据集对altmetrics的可用性做客观评价。方法/过程] 基于PLOS ALM数据,对当前主要的altmetrics指标进行覆盖率、稳定性、时效性和交叉性分析,对指标的使用价值做较为全面和客观的评价,为altmetrics的深入研究和实践利用提供借鉴和参考。结果/结论] 数据分析结果表明altmetrics指标来源广泛、形式多样,在覆盖率、稳定性和时效性上存在差异,反映了不同维度的文献价值,评价工作中需要根据指标自身的优势、劣势和适用范围,并考虑指标之间的交叉性,合理构建全面的指标体系,满足当前科研评价的需求。

Analysis on the Usability of Altmetrics Indicators Based on PLOS ALM

Purpose/significance] Altmetrics is the good supplement for the current academic evaluation system. But altmetrics has disadvantages of easy manipulated data, accidental users' behaviors and unstable data sources, so its usability is questioned. Method/process] Based on the PLOS ALM dataset, this paper analyzes the coverage ratio, stability, timeliness and intersectionality of altmetrics indicators, to make a comprehensive and objective evaluation for its usability, and provide subjective and valuable information for its deep study and usage. Result/conclusion] After the empirical analysis, it draws the conclusion that different indicators both have their own advantages and disadvantages. They perform differently in coverage ratio, stability, timeliness and continuity. Their reflections for scientific values vary and sometimes replicate. All the indicators should be used together as a system, to meet the needs of academic evaluation.