Welcome to Dong Wang's homepage

I'm a software engineer at Pinterest.

I got my M.S. degree in Computer Science Department, University of California, Los Angeles. Previously, I got my Bachelor degree in computer science from Tsinghua University.

Phone: 1-310-962-8192        E-mail: dongw89@gmail.com

Schedule a meeting? See my calendar here.

I usually collect some interest sites here.


Working Experiences: linkedin

Pinterest Feb, 2013 ~ Now

  Working in search and suggestions team.

Google    Jun, 2012 ~ Sep, 2012

  Working on related ads links.

  Waiting for updates.

MSRA    April, 2009 ~ Jun, 2011

  Intern in MSRA, Machine Learning group.

  Project includes: parallel machine learning algorithm, learning to rank, click model.


Project:

2012 CoWhere

  A software for multiply people commenting and drawing on PDF (pdf, ppt, image) file in realtime.

  Co-founder of http://cowhere.com

2011 Motion Poster

  Second places in Yahoo Hackyou competition. Develop an Android application that recognize poster automatically and playing trailer for corresponding poster.


Publication:

Understanding Click Noise: A Noise-aware Click Model for Web Search
Weizhu Chen, Dong Wang, Yuchen Zhang, Qiang Yang
ACM International Conference on Web Search and Data Mining (WSDM), 2012. (full paper)

User-click Modeling for Understanding and Predicting Search-behavior
Yuchen Zhang, Weizhu Chen, Dong Wang, Qiang Yang
ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), 2012. (full paper)

Learning Click Model via Probit Bayesian Inference
Yuchen Zhang, Dong Wang, Gang Wang, Weizhu Chen, Zhihua Zhang, Li Zhang.
In Proceeding of ACM Conference on Information and Knowledge Management (CIKM), 2010. (full paper)

Explore click models for search ranking
Dong Wang, Weizhu Chen, Gang Wang, Yuchen Zhang, Botao Hu.
In Proceeding of ACM Conference on Information and Knowledge Management (CIKM), 2010. (short paper)

Incorporating Post-Click Behaviors Into a Click Model
Feimin Zhong, Dong Wang, Gang Wang, Weizhu Chen, Yuchen Zhang, Zheng Chen, Haixun Wang.
In Proceeding of International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), 2010. (full paper)

Co-optimization of Multiple Relevance Metrics in Web Search
Dong Wang, Chenguang Zhu, Weizhu Chen, Gang Wang, Zheng Chen.
International World Wide Web Conference (WWW), 2010. (short paper)

A General Magnitude-Preserving Boosting Algorithm for Search Ranking
Chenguang Zhu, Weizhu Chen, Zeyuan Allen Zhu, Gang Wang, Dong Wang, Zheng Chen.
ACM Conference on Information and Knowledge Management (CIKM), 2009. (full paper)


Awards:

2008 ACM/ICPC World Finals, 6th place, Silver Medal, Banff Canada.
2007 ACM/ICPC Changchun Regional, 1st place, Gold Medal, Changchun China.
2007 ACM/ICPC programming contest, 2nd place, Gold Medal, Nanjing China.
2007 Scholarship for distinguished freshman, Tsinghua University
2006 18th International Olympiad in Informatics, Gold Medal, Mexico, ranked the 13th.
2005 National Olympiad in Informatics, Gold Medal, selected into National Team.


Research Interest:

Large scale parallel machine learning algorithm:
  Efficient and effective machine learning algorithms are needed when we meet large scale data on the internet. I'm interested in designing and implementing parallel machine learning algorithms running on the MPI-based clusters, Azure, and Map-reduce clusters.

Learning to rank:
  Learning to rank is a hot topic. I'm interested in the optimization problem of search ranking. It is about finding appropriate loss metrics effective use of available data for ranking, and co-optimization of multiple relevance metrics in web search.

Click model:
  Click-through data provides valuable information about user needs, document estimated relevance and search performance. We propose click models which are capable of automatically inferring document relevance accurately based on click-through data.