计算机科学文献的老化速度  

The Obsolescence Speed of Computer Science's Documents

作　　者：王春霞[1] 

机构地区：[1]太原理工大学图书馆,山西太原030024

出　　处：《晋图学刊》2004年第3期4-6,75,共4页Shanxi Library Journal

摘　　要：本文以计算机技术学科类具有代表性的10种期刊2001年发表的全部论文为统计对象,收集其引用文献进行该学科的文献老化研究。对该学科引文的时序分布、当年指标、最大引文年限、引文半衰期、普赖斯指数等文献老化量度指标进行统计分析。结果表明:该学科的中、外文文献最大引文年限分别为第3和第4年,引文半衰期为5.5年,普赖斯指数为45.8%,并提出分别以该学科中、外文文献发表后的11年和16年作为文献保存年限参考值,建议把该学科近5年内发表和出版的文献作为文献订购的时限。All articles of ten important journals in the computer science and technology are selected as examples to analyze the time order distribution of citation documents,the current year's index,the biggest quotation age,the half-life of documents and Price's index,etc.And the findings suggests that the biggest quotation age of Chinese and foreign documents is the 3rd and 4th year respectively,the half-life is 5.5 years,and the Price's index is equal to 45.8%.Then we think that the 11th and 16th year of the Chinese and foreign documents can be regard as the reference age of documents preservation.The documents to be ordered had better be restricted in those published in the recent 5 years.

关 键 词：计算机科学 文献老化 半衰期 普赖斯指数 引文分析 

分 类 号：G257.3[文化科学—图书馆学]