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影响因子在被应用于对期刊和科研活动的评价时,已表现出一定的局限性。为克服影响因子只能反映期刊近期影响力问题,引入累计影响因子概念,同时对影响因子和累计影响因子进行标准化转换,以克服影响因子及累计影响因子的学科限制。对标准化影响因子和标准化累计影响因子进行综合,从而给出期刊的近期影响力和中期影响力。这样得出的综合指标对于各种科技期刊具有相同内涵,因此可以用来进行直接比较。
Impact factors have been used to evaluate journals and research activities, has shown some limitations. In order to overcome the influence factor, it can only reflect the issue of the recent influence of the journal. The concept of cumulative influence factor is introduced. At the same time, the conversion of the influencing factor and the cumulative influencing factor is standardized so as to overcome the limitation of the influencing factors and the cumulative influencing factors. The standardization of the impact of factors and standardized cumulative impact factor to give the journal’s immediate impact and medium-term influence. The resulting composite indicators have the same implications for various scientific journals and can therefore be used for direct comparison.