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SAC
2006
ACM
15 years 10 months ago
The impact of sample reduction on PCA-based feature extraction for supervised learning
“The curse of dimensionality” is pertinent to many learning algorithms, and it denotes the drastic raise of computational complexity and classification error in high dimension...
Mykola Pechenizkiy, Seppo Puuronen, Alexey Tsymbal
ICDE
2001
IEEE
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16 years 5 months ago
Overcoming Limitations of Sampling for Aggregation Queries
We study the problem of approximately answering aggregation queries using sampling. We observe that uniform sampling performs poorly when the distribution of the aggregated attrib...
Surajit Chaudhuri, Gautam Das, Mayur Datar, Rajeev...
ICASSP
2008
IEEE
15 years 11 months ago
Optimal stochastic dual resource allocation for cognitive radios based on quantized CSI
The present paper deals with dynamic resource management based on quantized channel state information (CSI) for multi-carrier cognitive radio networks comprising primary and secon...
Antonio G. Marqués, Xin Wang, Georgios B. G...
PVM
2005
Springer
15 years 10 months ago
An Evaluation of Implementation Options for MPI One-Sided Communication
MPI defines one-sided communication operations—put, get, and accumulate—together with three different synchronization mechanisms that define the semantics associated with th...
William D. Gropp, Rajeev Thakur
EUROPAR
2004
Springer
15 years 10 months ago
A Data Structure Oriented Monitoring Environment for Fortran OpenMP Programs
This paper describes a monitoring environment that enables the analysis of memory access behavior of applications in a selective way with a potentially very high degree of detail. ...
Edmond Kereku, Tianchao Li, Michael Gerndt, Josef ...