As a software engineer, I work on both real time and batch data processing. ----1. Real time insight about our 60m members' streaming experience.----2. Real time mining of the logs generated from one third of the internet traffic.----3. Maintain both realtime and batch data pipeline.As a data scientist, I use data to help improve customers' viewing experience.----1. Mining user viewing behavior to guide our streaming algorithm design.----2. Mining massive system logs to help improve current streaming algorithm.

Collaborate with streaming platform team to improve video streaming experience.- Mining network logs to improve streaming algorithm.- Mining network logs to understand customer engagement.- Network traffic visualization.

Working on 3D TV and Smart TV projects.- Learning based image and video super-resolution.- Video watermarking for H.264 streams.- GPU accelerated Optical Flow motion estimation.- GPU accelerated interactive image and video matting.- Dense disparity estimation.

Working on many interesting problems.- Image segmentation and matting.- Shape analysis using differential geometry and topology techniques.- Level set methods and numerical simulation.- Efficient inference algorithm in Markov Random Field.