I am an Applied Econometrician with a Ph.D. in Economics from the University of Wisconsin at Madison. I am interested in the following areas of research: multivariate forecasting, causality based modeling, and game theoretic insights into behavior on social networks.
Rishiraj Saha Roy, Ritwik Sinha, Niyati Chhaya, Shiv K. Saini(May 18, 2015)
Cookies and log in-based authentication often provide incomplete data for stitching website visitors across multiple sources, necessitating probabilistic deduplication. We address this challenge by formulating the problem as a binary classification task for pairs of anonymous visitors. We compute visitor proximity vectors by converting categorical variables like IP addresses, product search keywords and URLs with very high cardinalities to continuous numeric variables using the Jaccard coefficient for each attribute. Our method achieves about 90% AUC and F-scores in identifying whether two cookies map to the same visitor, while providing insights on the relative importance of available features in Web analytics towards the deduplication process.
24th International World Wide Web Conference (WWW '15) Posters
Ritwik Sinha, Anandhavelu Natarajan, Shiv Saini(Oct 30, 2014)
International Conference on Behavior, Economic and Social Computing (BESC)