Efficient Permutation Testing
Matlab implementation for efficient permutation testing (http://pages.cs.wisc.edu/~vamsi/pt_fast....).
Permutation testing is a non parametric procedure to estimate the distribution of max null statistic. However it computationally very expensive, particularly in neuroimaging and biostatistics studies where dimensionality of data is on the order of millions. We proposed an efficient procedure to estimate this max null using matrix completion. A speed up of atleast 50 times is achieved while estimating the max null upto a high degree of accuracy. For complete details please refer to the project website (link above).
Please cite the following paper upon usage of the tool.
C. Hinrichs, V. K. Ithapu, Q. Sun, V. Singh, S. C. Johnson, Speeding up Permutation Testing in Neuroimaging, Neural Information Processing Systems (NIPS), 2013
Permutation testing is a non parametric procedure to estimate the distribution of max null statistic. However it computationally very expensive, particularly in neuroimaging and biostatistics studies where dimensionality of data is on the order of millions. We proposed an efficient procedure to estimate this max null using matrix completion. A speed up of atleast 50 times is achieved while estimating the max null upto a high degree of accuracy. For complete details please refer to the project website (link above).
Please cite the following paper upon usage of the tool.
C. Hinrichs, V. K. Ithapu, Q. Sun, V. Singh, S. C. Johnson, Speeding up Permutation Testing in Neuroimaging, Neural Information Processing Systems (NIPS), 2013
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Welcome to Open-Discussion posted by Vamsi Ithapu on Jan 16, 2014
Recent Activity - Files
efficient_pt: Errors corrected (New version) release
Efficient_PT.zip posted by Vamsi Ithapu on Apr 7, 2014
efficient_pt: 2014-01-16 release
Efficient_PT.zip posted by Vamsi Ithapu on Jan 16, 2014
efficient_pt: 2014-01-16 release
Project Webpage posted by Vamsi Ithapu on Jan 16, 2014