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» Sparse collective operations for MPI
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ICIP
2007
IEEE
14 years 1 months ago
Locally Competitive Algorithms for Sparse Approximation
Practical sparse approximation algorithms (particularly greedy algorithms) suffer two significant drawbacks: they are difficult to implement in hardware, and they are inefficie...
Christopher J. Rozell, Don H. Johnson, Richard G. ...
CCGRID
2006
IEEE
13 years 9 months ago
Integrating Logical and Physical File Models in the MPI-IO Implementation for "Clusterfile"
This paper presents the design and implementation of the MPI-IO interface for the Clusterfile parallel file system. The approach offers the opportunity of achieving a high corelat...
Florin Isaila, David E. Singh, Jesús Carret...
ICDCS
2012
IEEE
11 years 9 months ago
Tiresias: Online Anomaly Detection for Hierarchical Operational Network Data
Operational network data, management data such as customer care call logs and equipment system logs, is a very important source of information for network operators to detect prob...
Chi-Yao Hong, Matthew Caesar, Nick G. Duffield, Ji...
IJHPCA
2010
113views more  IJHPCA 2010»
13 years 6 months ago
Accurate Heterogeneous Communication Models and a Software Tool for Their Efficient Estimation
In this paper, we analyze restrictions of traditional communication performance models affecting the accuracy of analytical prediction of the execution time of collective communic...
Alexey L. Lastovetsky, Vladimir Rychkov, Maureen O...
SINOBIOMETRICS
2004
Springer
14 years 24 days ago
Face Recognition Under Varying Lighting Based on Derivates of Log Image
This paper considers the problem of recognizing faces under varying illuminations. First, we investigate the statistics of the derivative of the irradiance images (log) of human f...
Laiyun Qing, Shiguang Shan, Wen Gao