Sciweavers

441 search results - page 40 / 89
» Query expansion using random walk models
Sort
View
MCAM
2007
Springer
127views Multimedia» more  MCAM 2007»
14 years 4 months ago
An Optimized Topology Maintenance Framework for P2P Media Streaming
In this paper, we present an optimized topology maintenance framework used in AVStreamer P2P media streaming system. To help new incoming clients get an initial view of the whole n...
Rui Guo, Longshe Huo, Qiang Fu, Shuangjia Chen, We...
SIGIR
2002
ACM
13 years 9 months ago
Cross-lingual relevance models
We propose a formal model of Cross-Language Information Retrieval that does not rely on either query translation or document translation. Our approach leverages recent advances in...
Victor Lavrenko, Martin Choquette, W. Bruce Croft
ANSS
2004
IEEE
14 years 1 months ago
A Spatial Analysis of Mobility Models: Application to Wireless Ad Hoc Network Simulation
We quantatively analyze the differences between a realistic mobility model, TRANSIMS, and several synthetic mobility models. New synthetic models were created by modifying the sta...
D. Charles Engelhart, Anand Sivasubramaniam, Chris...
CRYPTO
2011
Springer
195views Cryptology» more  CRYPTO 2011»
12 years 9 months ago
Time-Lock Puzzles in the Random Oracle Model
Abstract. A time-lock puzzle is a mechanism for sending messages “to the future”. The sender publishes a puzzle whose solution is the message to be sent, thus hiding it until e...
Mohammad Mahmoody, Tal Moran, Salil P. Vadhan
SIGIR
2006
ACM
14 years 3 months ago
Topical link analysis for web search
Traditional web link-based ranking schemes use a single score to measure a page’s authority without concern of the community from which that authority is derived. As a result, a...
Lan Nie, Brian D. Davison, Xiaoguang Qi