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SIGIR
2002
ACM
15 years 6 months ago
Predicting query performance
We develop a method for predicting query performance by computing the relative entropy between a query language model and the corresponding collection language model. The resultin...
Stephen Cronen-Townsend, Yun Zhou, W. Bruce Croft
TOIS
2002
87views more  TOIS 2002»
15 years 6 months ago
Peer-to-peer data trading to preserve information
Data archiving systems rely on replication to preserve information. This paper discusses how a network of autonomousarchiving sites can trade data to achievethe most reliable repl...
Brian F. Cooper, Hector Garcia-Molina
CVPR
2009
IEEE
1148views Computer Vision» more  CVPR 2009»
17 years 1 months ago
Shape Constrained Figure-Ground Segmentation and Tracking
Global shape information is an effective top-down complement to bottom-up figure-ground segmentation as well as a useful constraint to avoid drift during adaptive tracking. We p...
Zhaozheng Yin, Robert T. Collins
SSS
2010
Springer
139views Control Systems» more  SSS 2010»
15 years 4 months ago
Vulnerability Analysis of High Dimensional Complex Systems
Complex systems experience dramatic changes in behavior and can undergo transitions from functional to dysfunctional states. An unstable system is prone to dysfunctional collective...
Vedant Misra, Dion Harmon, Yaneer Bar-Yam
TMC
2010
109views more  TMC 2010»
15 years 4 months ago
Uncertainty Modeling and Reduction in MANETs
—Evaluating and quantifying trust stimulates collaboration in mobile ad hoc networks (MANETs). Many existing reputation systems sharply divide the trust value into right or wrong...
Feng Li, Jie Wu