ebay的专栏

Author:Wei Min, Jason Wang1. IntroductionClicks contain information about user satisfaction with search results and provide a measurement of item relevance/quality. However, the observed click

Author:Li ZhongGartner Predicts Mobile Web Beats PC by 2013.By 2013, mobile phones will overtake PCs as the most common Web access device worldwide. According to Gartner's PC installed bas

Machine Learning Method In eBay Bot DetectionZhao Kevin, Pengju Yan Data Services and SolutionsSeptember 4, 2014Bot/Internet bot is a software application that runs automated tasks ove

Author:Zhang FelixIntroductionIn the age of internet, online shopping has created a revolution for consumers, growing rapidly year by year and offering a Golden Age of shopping. User account s

a/b测试是ebay主要使用的算法优化方法。由于交易数据的长尾特性，用以比较测试组和控制组的 t假设检验方法敏感度不高。本文通过事后分层的统计分析方法，对a/b测试中的用户按照试验前线上行为的相似度进行分组，通过减少组内行为差异而减少试验方差，进而提高测试敏感度，改进试验效率。