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NETWORKING
2008
15 years 8 months ago
Cooperative Replication in Content Networks with Nodes under Churn
In content networks, a replication group refers to a set of nodes that cooperate with each other to retrieve information objects from a distant server. Each node locally replicates...
Eva Jaho, Ioannis Z. Koukoutsidis, Ioannis Stavrak...
NIPS
2007
15 years 8 months ago
Fast and Scalable Training of Semi-Supervised CRFs with Application to Activity Recognition
We present a new and efficient semi-supervised training method for parameter estimation and feature selection in conditional random fields (CRFs). In real-world applications suc...
Maryam Mahdaviani, Tanzeem Choudhury
TRECVID
2008
15 years 8 months ago
Surveillance Event Detection
We have developed and evaluated three generalized systems for event detection. The first system is a simple brute force search method, where each space-time location in the video ...
Mert Dikmen, Huazhong Ning, Dennis J. Lin, Liangli...
SBBD
2003
101views Database» more  SBBD 2003»
15 years 8 months ago
Cherry Picking: A Semantic Query Processing Strategy for the Evaluation of Expensive Predicates
A common requirement of many scientific applications is the ability to process queries involving expensive predicates corresponding to user programs. Optimizing such queries is ha...
Fabio Porto, Eduardo Sany Laber, Patrick Valduriez
CGF
2008
94views more  CGF 2008»
15 years 6 months ago
Statistical optimization of octree searches
This work emerged from the following observation: usual search procedures for octrees start from the root to retrieve the data stored at the leaves. But since the leaves are the fa...
Rener Castro, Thomas Lewiner, Hélio Lopes, ...