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ICML
2007
IEEE
16 years 5 months ago
Bayesian compressive sensing and projection optimization
This paper introduces a new problem for which machine-learning tools may make an impact. The problem considered is termed "compressive sensing", in which a real signal o...
Shihao Ji, Lawrence Carin
ISBI
2004
IEEE
16 years 5 months ago
Optimal Variable-Density k-Space Sampling in MRI
Magnetic resonance imaging (MRI) is often times limited by scan time. To reduce scan time, there have been various efforts to reduce the number of sampling points. In most cases, ...
Jin Hyung Lee, Dwight G. Nishimura, Brad Osgood
ASPLOS
2009
ACM
16 years 5 months ago
3D finite difference computation on GPUs using CUDA
In this paper we describe a GPU parallelization of the 3D finite difference computation using CUDA. Data access redundancy is used as the metric to determine the optimal implement...
Paulius Micikevicius
CHI
2009
ACM
16 years 5 months ago
Studying appropriation of everyday technologies: a cognitive approach
The ways in which users appropriate uses of technology ? or invent new ones ? have attracted interest in CSCW-oriented research, but much less has been written on its cognitive fo...
Antti Salovaara
STOC
2004
ACM
88views Algorithms» more  STOC 2004»
16 years 4 months ago
Expander flows, geometric embeddings and graph partitioning
We give a O( log n)-approximation algorithm for sparsest cut, edge expansion, balanced separator, and graph conductance problems. This improves the O(log n)-approximation of Leig...
Sanjeev Arora, Satish Rao, Umesh V. Vazirani