%A Shao Zengrong,Li Ying,Fan Tijun %T The Application of Regular Expressions in Online Oil Price Event %0 Journal Article %D 2009 %J Data Analysis and Knowledge Discovery %R 10.11925/infotech.1003-3513.2009.02.14 %P 83-88 %V 3 %N 2 %U {https://manu44.magtech.com.cn/Jwk_infotech_wk3/CN/abstract/article_723.shtml} %8 2009-02-25 %X

With the advantages of regular expression in string manipulation,this paper realizes extraction of oil price information from noisy and irregular Webpages. Points of importance and difficulty in realization are pointed out, and the structural description ability of regular expression in string manipulation is testified.