AI技术在eBay有哪些信誉好的足球投注网站平台的应用.PDF

AI技术在eBay有哪些信誉好的足球投注网站平台的应用 Hua Yang, Steven Xin, Dingxian Wang, Jason Jiang eBay China Center of Excellence hyang2@ 4/12/2018 EBAY CHINA CENTER of EXCELLENCE EBAY CHINA CENTER of EXCELLENCE A Glance of eBay Search Platform • 60+% of all eBay traffic • 1.5 billions of active items • 300+ millions search queries daily • Global reach: 41 sites, 224 countries • Cassini – eBay’s 3rd generation search engine – Live in 2014 – A highly scalable, available search engine – 20000+ machines in 3 data centers (7 clusters for active items) – NRT (near real time) updates • Cutting-edge machine learning algorithms – Large-scale machine learning platform – ML algorithms in query understanding, ranking, SPAM, etc. • Search as a service (SaaS) EBAY CHINA CENTER of EXCELLENCE 3 What’s Special about eBay Search? • Near real-time update •Search ranking algorithms – Relevance – Conversion • Sales • Spectrum of values (diversity) – Quality How to find the perfect choice from billions of items? EBAY CHINA CENTER of EXCELLENCE eBay Queries and Items • Queries – Brand name: • Michael Kors, Nike – Products, product types, or specific models: • Michael Kors Watch, Jaguar smart key, MK5865, Nike shoe – Products with attributes: • Michael Kors gold Watch, 2015 accord battery tray, 1g gold bar, 1gb, 8gb sd card, honda 15hp • Item Titles – New Michael Kors Womens Parker MK5865 Rose-Gold Stainless-Steel Fashion Watch – NWT Michael Kors Abbey Large Backpack $398.00 • NWT – New With Tags – 1 Carat Round Cut Diamond Engagement Ring SI1/D White Gold 14k • SI1 – clarity score; D – color notation Need to und