Job Description
1. 建设并持续优化上个性化推荐服务和商品搜索服务
2. 深入挖掘用户行为日志、商品订单数据并建立洞察，完善用户/会员体系，完善指标体系，挖掘优化机会点，提取用户特征，建设用户画像
3. 通过特征优化、模型升级、策略调优等持续优化线上服务的转化效果
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