一种刊物某年的影响因子是指该刊前 2年发表的论文被当年其它刊物 (称为统计用期刊或来源期刊 ,也包括该刊在内 )所引用的次数与该刊在此 2年内所发表的论文总数之比。一般说来 ,此值越大 ,表明刊物的影响力和学术作用也越大。因此 ,刊物的影响因子是国际上通用的对其质量进行 The impact factor of a journal in a particular year means that the number of papers published in the first two years of the journal is the same as the number quoted in other journals of the current year (referred to as statistical journals or source journals, including the journal) The total number of published papers. In general, the larger the value, the greater the impact and academic impact of the publication. Therefore, the impact factor of a publication is internationally accepted for its quality