Google China Faculty Summit 瞿裕忠（Yuzhong Qu） yzqu@nju.edu.cn 南京大学计算机科学与技术系

Google’s Mission … Innovation and user benefit Organize the world’s information, to make it accessible for people and benefit users Extend the capability of people, but not in isolation Aggregation of human inputs is exceedingly valuable

Google’s Knowledge Graph When you search, not just looking for a webpage. looking to get answers, understand concepts and explore. Challenge To understand real-world things and the relationships among them. Knowledge Graph A huge collection of the people, places and things in the world and how they're connected to one another.

Google’s Knowledge Graph Map the universe of things, not just web pages The current size of Knowledge Graph 500M entities, 1,500 types 3.5 billion facts, 35,000 properties Reconciliation!

The basis for the Google Knowledge Graph Freebase An online collection of structured data harvested from many sources, including individual 'wiki' contributions. :BaseKB A tool for accessing Freebase data in RDF data model. It might be a milestone for both Freebase and the Semantic Web Size 25M entities, 1,500 types 450M facts, //35,000 properties?

Google’s Search (KG) Search Find the right thing Get the best summary Go deeper and broader

致谢 http://ws.nju.edu.cn/

Reference Kurt D. Bollacker, Colin Evans, Praveen Paritosh, Tim Sturge, Jamie Taylor: Freebase: a collaboratively created graph database for structuring human knowledge. SIGMOD Conference 2008: 1247-1250 Alfred Z. Spector, Peter Norvig, Slav Petrov: Google's hybrid approach to research. Commun. ACM 55(7): 34-37 (2012) Alfred Z. Spector (IBM): Architecting Knowledge Middleware WWW 2002