David Cai   蔡伟


I am currently starting a new venture in Beijing, working on big and exciting problems that make people's lives better.

Previously I was an experienced computer vision engineer at Google, working at the intersection of computer vision technologies and Google products. Our team has been working on web scale image and video annotation using deep learning, which is a main component of the search and organization of the Google Photos. We have also been developing the state-of-the-art image search and retrieval technologies that have significant impact to several products including Google Image Search, Search by Image, and Cloud Vision API.

I hold 8 US patents on web-scale computer vision and machine learning systems and have authored of a number of top-tier peer-reviewed scientific papers (my Google Scholar page). I also won the Best Student Paper Award at the British Machine Vision Conference in 2010.

I received my B.Eng in EE from Tsinghua University, master in CS from Georgia Institute of Technology and M.B.A from Stanford Graduate School of Business. Before M.B.A I also briefly worked on investment management at GSR Ventures Palo Alto office, focusing on early stage AI companies.

I love technology and enjoy using them to make people's life better. It is for this reason that I co-founded VisualGraph, a cloud-based visual shopping platform in 2013. While there I developed computer vision modules for visual search engine. It was acquired by Pinterest in 2014. I believe everyone can do something dazzling as long as you have ambition, big vision, execution and persistence. I build and invest in products that innovate at the intersection of creative technology, excellent product, and sustained business model.

In my free time I love reading books and watching NBA games (Rockets fan for more than a decade). I also do some trading/investing mainly on US stocks. I used to be a pure O'Neil style investor but now I also focus more on deep value analysis. I really enjoy doing research on both public and private companies. Their ups and downs could provide tremendous business insights for me. I believe in the investing precision is much more important than recall, and the blind diversification is the mother of mediocrity.

What's New...

2019.6     I co-founded DeepDot in Beijing.

2017.9     I joined Stanford GSB's M.B.A program.

2017.8     U.S. Patent 15/491,951 "Object based image based search" has been granted.

2017.5     I joined GSR Ventures in Palo Alto.

2015.5     The new Google Photos launched in Google I/O.

2013.12   VisualGraph was acquired by Pinterest.

2013.11  I joined Google as a Software Engineer.

2013.9    One paper accepted by TMM, one paper accepted by ICCV 2013.

2013.1    I co-founded VisualGraph and worked as an engineer.

2012.11  I will be on leave from my PhD program during academic year 2013.

2012.1   One paper accepted by IJCV.

2011.6   One paper accepted by ICCV 2011.

Page last updated 06/2019