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Research Area: Machine Learning, Computational Advertising |
Profile
Deepak Agarwal is currently a senior research scientist at Yahoo! Research. Prior to joining Yahoo!, he was a member of the statistics department at AT&T Research.
He obtained a Ph.D in statistics from the University of Connecticut under the guidance of Professor Alan Gelfand. At AT&T, he worked on methods for mining massive graphs, statistical models for social network analysis, anomaly detection using a time series approach and computational approaches for scaling spatial scan statistic to large data sets.
His current research interests at Yahoo! include large scale regression for massive, sparse and noisy data via "feature aggregation", anomaly detection in high dimensional spaces, multi-armed bandit problems for learning taxonomies and statistical methods for social network analysis.
Deepak won a best research paper award at Joint Statistical Meetings 2001 for his thesis work which studied deforestation patterns in Madagascar using a two-stage spatial regression model, the best applications paper award at Siam Data Mining 2004 for his Bayesian modeling work on large sparse social networks via stochastic blockmodels and more recently the best research paper award at KDD 2007 for his work that propose a general class of models for large sparse dyadic data. He regularly serves on program committees of prestigious data mining conferences like KDD, SDM and has organized several invited sessions at Joint Statistical Meetings. He thrives working on applied statistical problems that involve analyzing massive amounts of data.
Recent Publications, Projects and News
- Contextual Advertising by Combining Relevance with Click Feedback Deepayan Chakrabarti; Deepak Agarwal; Vanja Josifovski, WWW, 2008
- Multi-armed Bandit Problems with Dependent Arms S. Pandey; D. Chakrabarti; D. Agarwal, ICML, 2007
- Estimating Rates of Rare Events at Multiple Resolutions D. Agarwal; A. Broder; D. Chakrabarti; D. Diklic; V. Josifovski; M. Sayyadian, KDD, 2007
- Detecting anomalies in cross-classified streams: a Bayesian approach Agarwal, Deepak, Knowl. Inf. Syst., 2007
- Bandits for Taxonomies: A Model-based Approach Pandey, Sandeep ; Agarwal, Deepak ; Chakrabarti, Deepayan ; Josifovski, Vanja, SDM, 2007
- Efficient and effective explanation of change in hierarchical summaries Agarwal, Deepak ; Barman, Dhiman ; Gunopulos, Dimitrios ; Young, Neal E. ; Korn, Flip ; Srivastava, Divesh, KDD, 2007
- Parsimonious Explanations of Change in Hierarchical Data Barman, Dhiman ; Korn, Flip ; Srivastava, Divesh ; Gunopulos, Dimitrios ; Young, Neal E. ; Agarwal, Deepak, ICDE, 2007
- Predictive discrete latent factor models for large scale dyadic data Agarwal, Deepak ; Merugu, Srujana, KDD, 2007
- Building an Effective Representation for Dynamic Networks S.Hill, ; Agarwal, D. ; R.Bell, ; C.Volinsky,, Journal of Computational and Graphical Statistics, 2006
- The hunting of the bump: on maximizing statistical discrepancy Agarwal, Deepak ; Phillips, Jeff M. ; Venkatasubramanian, Suresh, SODA, 2006
- Spatial scan statistics: approximations and performance study Agarwal, Deepak ; McGregor, Andrew ; Phillips, Jeff M. ; Venkatasubramanian, Suresh ; Zhu, Zhengyuan, KDD, 2006
- Tropical deforestation in Madagascar: Analysis using hierarchical, spatially explicit, Bayesian regression models Agarwal, Deepak ; Silander, J.J.A ; A.E.Gelfand, ; Mickeson, J.J.G, Ecological Modeling, 2005
- Slice Sampling with Application to Spatial Data Agarwal, Deepak ; Gelfand, Alan, Statistics and Computing, 2005
- An Empirical Bayes Approach to Detect Anomalies in Dynamic Multidimensional Arrays Agarwal, Deepak K., ICDM, 2005
- Zero-inflated models with application to spatial count data Agarwal, Deepak ; Gelfand, Alan ; Pousty, Steven-Citron, Environmental and Ecological Statistics, 2004
- Enhancing Communities of interest using Bayesing Stochastic Blockmodels D.Agarwal, ; D.Pregibon,, SDM, 2004
- Applications of sampling and fractional factorial designs to model-free data squashing DuMouchel, William ; Agarwal, Deepak K., KDD, 2003

