I have a broad interest in real world problems related to information retrieval, machine learning and data mining. My primary research interests include Information Retrieval, Recommender Systems,and Bayesian statistical methods. I also have a strong interest in natrual language processing and Database related problems. Please click here to read more about my research.

• First Place Team Winner, BestRank Contest, Microsoft Research Asia, 2006
• Regent Fellowship, University of California Santa Cruz, 2008

• Lei Yang, Kai Yu, Learning Rating Bias in Collaborative Filtering (In progress)
  
  
• Lei Yang, Fan Yang, Interpolation or Backoff: An Aggregation Method in Smoothing Language Models (In progress)
  
  
• Lei Yang, Bin An, Fan Wang, AdRank: Click-based Ad Selection (Finished)
  
  
• Lei Yang, Lei Qi, Yan-Ping Zhao, Bin Gao, Tie-Yan Liu. Link Analysis using Time Series on Web Graph, Proceedings of the 16th ACM International Conference on Information and Knowledge Management(CIKM' 07)
  
  
• Lei Yang, Jian-Yun Shang, Yan-Ping Zhao. An Efficient Dictionary Mechanism Based On Double-Byte, Proceedings of the 10th International Conference on Asian Digital Libraries (ICADL' 07)
  
  
• Lei Yang, Gang Shu, Zhen-Dong Niu. Link Analysis using Gravitation Model, 3rd National Conference on Information Retrieve and Content Safety (NCIRCS' 07)
  

• Research Intern (Jun. 2006 - Jun. 2007)
  Web Search and Mining Group, Microsoft Research Asia, working with Tie-Yan Liu
  
  
• Teaching Assistant (Jan. 2009 - Present)
  University of California Santa Cruz
  CMPS180 Database System, 2009 Winter
  ISM50 Business Information Systems, 2009 Spring
  CMPE16 Applied Discrete Mathematics, 2009 Summer
  CMPS101 Algorithms and Abstract Data Types, 2009 Summer