摘要
本文在分析研究了实际引文数据和Ｂｒｏｏｋｅｓ引文年代分布数学模型的基础上，建立了新的引文年代分布动态数学模型（４）和静态数学模型（５），并引用三组数据进行了实际验征。提出了引文中统计年发表的文章其引文年龄为０．５５年和文献老化的半衰期的计算公式为ｔ＝ｌｎ（２／λ），简要分析讨论了模型中有关参数的计算和解释。
Based on the studies of actual citation data and the Brookes′mathemati-cal model for citation time distribution.this paper sets up the dynamic andstatic mathematical models for the citation time distribution [(4),(5)].The new model is tested by actual data. It is considered that the citation time ofpublished papers in estimated year is 0.55 year, the half-life of literatureaging is t=Ln2/λ. The paper also discusses the calculation and explanationof the parameters used in the model.
出处
《情报学报》
CSSCI
北大核心
1994年第6期421-429,共9页
Journal of the China Society for Scientific and Technical Information
