讲座:http://bdai.ruc.edu.cn/?p=118 Modeling User Engagement for Ad and Search ppt 链接: Dr. Ke(Adam) Zhou work 1: Modeling User Engagement for Ad and Search,文章链接:http://dl.acm.org/citation.cfm?id=2883053 user engagement 一,how to measure: 1, 分析学:CTR,absen…