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146
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ICPR
2010
IEEE
15 years 1 months ago
Beyond "Near Duplicates": Learning Hash Codes for Efficient Similar-Image Retrieval
Finding similar images in a large database is an important, but often computationally expensive, task. In this paper, we present a two-tier similar-image retrieval system with the...
Shumeet Baluja, Michele Covell
150
Voted
CORR
2011
Springer
148views Education» more  CORR 2011»
14 years 10 months ago
How well can we estimate a sparse vector?
The estimation of a sparse vector in the linear model is a fundamental problem in signal processing, statistics, and compressive sensing. This paper establishes a lower bound on t...
Emmanuel J. Candès, Mark A. Davenport
145
Voted
CORR
2011
Springer
183views Education» more  CORR 2011»
14 years 10 months ago
Mean-Variance Optimization in Markov Decision Processes
We consider finite horizon Markov decision processes under performance measures that involve both the mean and the variance of the cumulative reward. We show that either randomiz...
Shie Mannor, John N. Tsitsiklis
176
Voted
ECCC
2011
190views ECommerce» more  ECCC 2011»
14 years 7 months ago
Optimal heuristic algorithms for the image of an injective function
The existence of optimal algorithms is not known for any decision problem in NP \ P. We consider the problem of testing the membership in the image of an injective function. We co...
Edward A. Hirsch, Dmitry Itsykson, Valeria Nikolae...
162
Voted
ICDCS
2006
IEEE
15 years 9 months ago
Elastic Routing Table with Provable Performance for Congestion Control in DHT Networks
Distributed hash table (DHT) networks based on consistent hashing functions have an inherent load balancing problem. The problem becomes more severe due to the heterogeneity of ne...
Haiying Shen, Cheng-Zhong Xu