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ICPR
2010
IEEE
15 years 8 months ago
Compressing Sparse Feature Vectors Using Random Ortho-Projections
In this paper we investigate the usage of random ortho-projections in the compression of sparse feature vectors. The study is carried out by evaluating the compressed features in ...
Esa Rahtu, Mikko Salo, Janne Heikkilä
ACMSE
2010
ACM
15 years 1 months ago
Learning to rank using 1-norm regularization and convex hull reduction
The ranking problem appears in many areas of study such as customer rating, social science, economics, and information retrieval. Ranking can be formulated as a classification pro...
Xiaofei Nan, Yixin Chen, Xin Dang, Dawn Wilkins
CHI
2006
ACM
16 years 7 months ago
Using intelligent task routing and contribution review to help communities build artifacts of lasting value
Many online communities are emerging that, like Wikipedia, bring people together to build community-maintained artifacts of lasting value (CALVs). Motivating people to contribute ...
Dan Cosley, Dan Frankowski, Loren G. Terveen, John...
CHI
2006
ACM
16 years 7 months ago
Zone and polygon menus: using relative position to increase the breadth of multi-stroke marking menus
We present Zone and Polygon menus, two new variants of multi-stroke marking menus that consider both the relative position and orientation of strokes. Our menus are designed to in...
Shengdong Zhao, Maneesh Agrawala, Ken Hinckley
CHI
2005
ACM
16 years 7 months ago
Understanding email use: predicting action on a message
Email consumes significant time and attention in the workplace. We conducted an organizational survey to understand how and why people attend to incoming email messages. We examin...
Laura A. Dabbish, Robert E. Kraut, Susan R. Fussel...