gōng sī / lì yòng / shù jù / wā jué / fēn xī / yòng hù / de / gòu mǎi / jì lù / yǐ / gǎi jìn / tuī jiàn / xì tǒng公司利用数据挖掘分析用户的购买记录,以改进推荐系统。The company uses data mining to analyze users' purchase records and improve its recommendation system.