%A Chen Shiji, Shi Liwen, Li Dongmei, Zuo Wenge %T Review on Normalization Methods of Citation Counts %0 Journal Article %D 2012 %J Data Analysis and Knowledge Discovery %R 10.11925/infotech.1003-3513.2012.04.09 %P 54-60 %V 28 %N 4 %U {https://manu44.magtech.com.cn/Jwk_infotech_wk3/CN/abstract/article_3552.shtml} %8 2012-04-25 %X Citation counts is the most representative indicator in citation analysis,which is also used in research performance as an indicator of the impact. Since citation counts is sensitive on field, document type and publish year, it needs normalize for the cross-field comparison. In this paper,various methods of citation counts normalization are demonstrated and some problems on citation indicator in practice are also discussed.