Rank: 342 based on 188 downloads (last 30 days) and 3 files submitted
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Patrick Tsui

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PAMI research group, University of Waterloo

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Files Posted by Patrick View all
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
06 Mar 2006 Screenshot Fast EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui expectation maximizat..., statistics, probability, em, gaussian mixture 23 4
  • 3.5
3.5 | 6 ratings
06 Mar 2006 Screenshot EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui expectation maximizat..., em, statistics, probability, gaussian mixture 156 39
  • 4.38235
4.4 | 35 ratings
24 Oct 2005 Plot_GM Generate ellipse and landscape plots of Gaussian mixture. Author: Patrick Tsui statistics, probability, gaussian mixture, ellipse plot, meshc plot 9 2
  • 3.5
3.5 | 2 ratings
Comments and Ratings on Patrick's Files View all
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Updated File Comment by Comments Rating
04 Dec 2011 EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui Farley, Alexander

I've written a mixture of Gaussians background subtraction algorithm using this script and it seems to work properly.
24 Nov 2011 EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui Dongsheng

Thx for your code. But I double checked that your likelihood calculation is wrong!
15 Nov 2011 EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui Da, Sam

You did a good job writing it but it has bugs in it. It complains a lot about positive definiteness of matrices on data which produce good results with other similar code.
12 Jun 2011 EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui Zapletal, Petr

What is the time comlexity of your implementation?
06 Feb 2011 Fast EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui CT

Hi Patrick,

I'm using your EM_GM_fast code. Could you please tell me is there the option that permits to estimate Gaussian mixtures with diagonal covariance matrices? Thank you.

Cong-Thanh Do

Top Tags Applied by Patrick
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gaussian mixture, probability, statistics, em, expectation maximization
Files Tagged by Patrick View all
  • 1 - 3 of
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
06 Mar 2006 Screenshot Fast EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui expectation maximizat..., statistics, probability, em, gaussian mixture 23 4
  • 3.5
3.5 | 6 ratings
06 Mar 2006 Screenshot EM_GM An expectation maximization algorithm for learning a multi-dimensional Gaussian mixture. Author: Patrick Tsui expectation maximizat..., em, statistics, probability, gaussian mixture 156 39
  • 4.38235
4.4 | 35 ratings
24 Oct 2005 Plot_GM Generate ellipse and landscape plots of Gaussian mixture. Author: Patrick Tsui statistics, probability, gaussian mixture, ellipse plot, meshc plot 9 2
  • 3.5
3.5 | 2 ratings

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