Rank: 1943 based on 76 downloads (last 30 days) and 6 files submitted
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Hanan Shteingart

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PhD student in computational neuroscinece


 

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29 Apr 2014 Levenshtein Distance Fast (MEX) C++ Computing the Levenstein distance between strings fast in matlab using external mex c++ code Author: Hanan Shteingart levenshtein distance, mex, c, fast 11 1
10 Jan 2014 Parallel Analysis (PA) to for determining the number of components to retain from PCA. component is retained if the associated eigenvalue is bigger than the 95th of the distribution of ei Author: Hanan Shteingart pca 16 1
  • 5.0
5.0 | 1 rating
03 Sep 2013 Tests against the null hyptothesis of whiteness Tests whether a given signal is white (delta function in autocorrelation) Author: Hanan Shteingart whiteness, random, noise, test, hypothesis testing 12 0
29 Jul 2013 test periodicity Test for signal periodicity using Fisher's g-statistics (see references below) Author: Hanan Shteingart periodicity, gstatistics, fisher, sinusoidal, periodogram 22 2
11 Jun 2013 cellfunfun cellfunfun is identical to cellfun but takes care for uniformOutput parameter Author: Hanan Shteingart cellfun 5 0
Comments and Ratings by Hanan Shteingart View all
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19 Oct 2014 Deep Learning Toolbox Deep Belief Nets, Stacked Autoencoders, Convolutional Neural Nets and more. With examples. Author: Rasmus Berg Palm

poor documentation makes this hardly usable.

for example:
function scae = scaesetup(cae, x, opts)
x = x{1};

code starts straight away without any parameter explaining. what is x? opts? cae?
you can look at the example code but it is hard to reverse engineer it.

12 Oct 2013 queryMySQL Platform independent MySQL database solution with blob support. Author: Jonathan Karr

files which are not part of clean matlab installation are missing:

mkconstarray.m
padarray.m
checkstrs.m

You can find them over the web.

30 Jul 2013 test periodicity Test for signal periodicity using Fisher's g-statistics (see references below) Author: Hanan Shteingart

Dear Nora,
The bug is in taking only 3 terms from the original series in Fisher's paper. At non significant samples g is small resulting in a sum over many large terms. This results in numerical errors which in turn fails to estimate the true p-value. In my submission I bypassed it by finding first the 5% significance g value and set it as a threshold below which p value is 1.

18 Jul 2013 Fast and efficient spectral clustering Perform fast and efficient spectral clustering algorithms Author: Ingo

does this package supports "large" datasets of 100,000 rows on 500 columns?

Comments and Ratings on Hanan Shteingart's Files View all
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22 Sep 2014 Parallel Analysis (PA) to for determining the number of components to retain from PCA. component is retained if the associated eigenvalue is bigger than the 95th of the distribution of ei Author: Hanan Shteingart Rodolphe

Thanks for the script. It unfortunately produces an error when there is missing data (presence of NaNs).
Is there a way to fix that problem?

12 May 2014 Levenshtein Distance Fast (MEX) C++ Computing the Levenstein distance between strings fast in matlab using external mex c++ code Author: Hanan Shteingart Oleg Komarov

Tested against other m-code implementations. It's more that two orders of magnitude faster.

However, it would be great if an .m file with the help was added.

30 Jul 2013 test periodicity Test for signal periodicity using Fisher's g-statistics (see references below) Author: Hanan Shteingart Hanan Shteingart

Dear Nora,
The bug is in taking only 3 terms from the original series in Fisher's paper. At non significant samples g is small resulting in a sum over many large terms. This results in numerical errors which in turn fails to estimate the true p-value. In my submission I bypassed it by finding first the 5% significance g value and set it as a threshold below which p value is 1.

30 Jul 2013 test periodicity Test for signal periodicity using Fisher's g-statistics (see references below) Author: Hanan Shteingart Nora

Would you mind telling me what is the bug that you detect in:
http://www.mathworks.com/help/signal/ug/significance-testing-for-periodic-component.html

Thanks!

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