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SIGIR
2011
ACM
14 years 9 months ago
Utilizing marginal net utility for recommendation in e-commerce
Traditional recommendation algorithms often select products with the highest predicted ratings to recommend. However, earlier research in economics and marketing indicates that a ...
Jian Wang, Yi Zhang
WSDM
2012
ACM
301views Data Mining» more  WSDM 2012»
14 years 1 months ago
Learning evolving and emerging topics in social media: a dynamic nmf approach with temporal regularization
As massive repositories of real-time human commentary, social media platforms have arguably evolved far beyond passive facilitation of online social interactions. Rapid analysis o...
Ankan Saha, Vikas Sindhwani
COMPGEOM
2010
ACM
15 years 11 months ago
The 2-center problem in three dimensions
Let P be a set of n points in R3 . The 2-center problem for P is to find two congruent balls of the minimum radius whose union covers P. We present two randomized algorithms for ...
Pankaj K. Agarwal, Rinat Ben Avraham, Micha Sharir
MC
2003
170views Computer Science» more  MC 2003»
15 years 7 months ago
Social navigation: from the web to the mobile
Social navigation is the alternative way of looking upon navigation in the virtual world: e g instead of navigating the web by maps and hierarchies and search engines, you would n...
Kristina Höök
CVPR
2009
IEEE
1626views Computer Vision» more  CVPR 2009»
17 years 1 months ago
Coded Exposure Deblurring: Optimized Codes for PSF Estimation and Invertibility
We consider the problem of single image object motion deblurring from a static camera. It is well known that deblurring of moving objects using a traditional camera is ill-posed, d...
Amit K. Agrawal, Yi Xu