Yang Li is the co-founder and CTO of Kyligence. He brings with him more than a decade of practical experience in the field of Big Data analytics. He is a co-founder and project management committee member (PMC) for'Apache Kylin, architect, and technical leader. He focuses on cutting-edge technologies including: Big Data analysis, parallel computing, data indexing, relational mathematics, approximation algorithms, and compression algorithms.' Yang is a former Senior Architect, Big Data, for eBay's Global Analytics Infrastructure. He is also a former technical lead for IBM InfoSphere BigInsights, responsible for the Hadoop open source product architecture. During the past 15 years, he has witnessed and participated directly in the development of extreme OLAP technology.