Lidan Wang 3126 A.V. Williams Building Computer Science Department University of Maryland College Park, MD 20742 Email: lidan@cs.umd.edu About Me I am an applied researcher at Microsoft. I received my Ph.D. in Computer Science from the University of Maryland, College Park, working with Prof. Jimmy Lin. My research interests include information retrieval, machine learning, and text mining, with an emphasis on efficient and scalable methods for managing, learning, and retrieving information from large-scale data. I have a Master's degree from the Computer Science Department, University of Wisconsin, Madison, and a Bachelor's degree from the Computer Science and Engineering Department, University of Florida. News 8/14/12 Paper "Robust Ranking Models via Risk-Sensitive Optimization" won the Best Paper Honorable Mention Award at SIGIR 2012. 4/10/12 Invited talk at Microsoft Research, Redmond 2/20/12 Invited talk at Johns Hopkins University 4/7/11 Paper "A Cascade Ranking Model for Efficient Ranked Retrieval" is accepted to SIGIR 2011. 3/7/11 I will be doing a summer internship at Microsoft Research, Redmond. 11/29/10 Thesis proposal: Learning to efficiently rank 10/27/10 Presented paper "Ranking under Temporal Constraints" at CIKM 2010 10/24/10 Source code of my CIKM 2010 paper has been released in Ivory 7/20/10 Presented paper "Learning to Efficiently Rank" at SIGIR 2010 7/19/10 Source code of my SIGIR 2010 paper has been released in Ivory Refereed Conference Publications Robust Ranking Models via Risk-Sensitive Optimization Lidan Wang, Paul N. Bennett, Kevyn Collins-Thompson Proceedings of SIGIR, 2012 pdf Best Paper Honorable Mention Award A Cascade Ranking Model for Efficient Ranked Retrieval Lidan Wang, Jimmy Lin, Donald Metzler Proceedings of SIGIR, 2011 pdf Ranking under Temporal Constraints Lidan Wang, Donald Metzler, Jimmy Lin Proceedings of CIKM, 2010 pdf Best paper award finalist Learning to Efficiently Rank Lidan Wang, Jimmy Lin, Donald Metzler Proceedings of SIGIR, 2010 pdf Context-based Message Expansion for Disentanglement of Interleaved Text Conversations Lidan Wang, Douglas Oard Proceedings of NAACL/HLT, 2009 pdf Matching Person Names Through Name Transformation Jun Gong, Lidan Wang, Douglas Oard Proceedings of CIKM, 2009 pdf Personal Name-Matching Through Name Transformation Jun Gong, Lidan Wang, Douglas Oard Proceedings of JCDL, 2009 pdf Predictive Modeling-based Data Collection in Sensor Networks Lidan Wang, Amol Deshpande Proceedings of EWSN, 2008 pdf Best Paper Award Workshop and Technical Reports Of Ivory and Smurfs: Loxodontan MapReduce Experiments for Web Search Jimmy Lin, Donald Metzler, Tamer Elsayed, Lidan Wang Proceedings of TREC, 2009 pdf UMD and USC/ISI: TREC 2010 Web Track Experiments with Ivory Tamer Elsayed, Nima Asadi, Donald Metzler, Lidan Wang, and Jimmy Lin Proceedings of TREC, 2010 pdf Badger: An Entropy-based Web Search Clustering System with Randomization and Voting Lidan Wang, Chloe Schulze Technical Report 1537, Computer Science Department, University of Wisconsin, Madison, 2005 pdf Aggregate Sharing in Stream Databases Lidan Wang, Jeffrey Freschl Technical Report 1536, Computer Science Department, University of Wisconsin, Madison, 2005 pdf Experience Graduate Research Assistant, Computer Science Dept., Univ. of Maryland, College Park, Aug '06-now Research Intern, Microsoft Research, Redmond, Summer 2011 Research & Teaching Assistant, Computer Science Dept., Univ. of Wisconsin, Madison, Aug '03-May '06 Research and Design Intern, IBM Silicon Valley Lab, Summer 2006 Professional Activities Program Committee Member: SIGIR 2012, CIKM 2012, NAACL-HLT 2012, ECIR 2012, SIGIR 2011 Journal Reviewer: ACM Transactions on Information Systems (TOIS). Other Academics Information Relevant courses taken CMSC723 - Computational Linguistic CMSC828G - Link Mining and Dynamic Network Analysis CMSC858K - Optimization Algorithms CMSC828K - Data Streams and Sensor Data Management CS760 - Machine Learning STAT610 - Statistical Inference CS776 - Advanced Bioinformatics CS730 - Nonlinear Optimization CS764 - Databases Management Systems Courses served as TA for CMSC131 - Object-Oriented Programming (at Maryland) CS576 - Introduction to Bioinformatics (at Wisconsin) CS776 - Advanced Bioinformatics (at Wisconsin)