no code implementations • 9 Jul 2018 • Aiyou Chen, David Chan, Mike Perry, Yuxue Jin, Yunting Sun, Yueqing Wang, Jim Koehler
Evaluating the return on ad spend (ROAS), the causal effect of advertising on sales, is critical to advertisers for understanding the performance of their existing marketing strategy as well as how to improve and optimize it.
Applications
no code implementations • 10 Jul 2012 • Arash A. Amini, Aiyou Chen, Peter J. Bickel, Elizaveta Levina
Many algorithms have been proposed for fitting network models with communities, but most of them do not scale well to large networks, and often fail on sparse networks.
no code implementations • 23 Feb 2012 • Peter J. Bickel, Aiyou Chen, Elizaveta Levina
Probability models on graphs are becoming increasingly important in many applications, but statistical tools for fitting such models are not yet well developed.
Statistics Theory Statistics Theory
no code implementations • 14 Apr 2011 • Donghui Yan, Aiyou Chen, Michael. I. Jordan
The search for good local clusterings is guided by a cluster quality measure kappa.