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| author | ziejd2 | 2018-03-14 23:23:33 -0500 |
|---|---|---|
| committer | GitHub | 2018-03-14 23:23:33 -0500 |
| commit | 1ff6baa44e22b91eefb48aea6f3befa078c0489b (patch) | |
| tree | e0fd79d2e32fd2aedda2eadaed0f19af3514c520 /sourcecodes/bnt-master/nethelp3.3/demgmm5.htm | |
| parent | 6882395afdadf4e982b25b5215071a0932730950 (diff) | |
| parent | c80226899f5cdd9f11c163817d59445213f5bef0 (diff) | |
| download | BNW-1ff6baa44e22b91eefb48aea6f3befa078c0489b.tar.gz | |
Merge pull request #1 from ziejd2/octave_php_separate
Octave php separate
Diffstat (limited to 'sourcecodes/bnt-master/nethelp3.3/demgmm5.htm')
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diff --git a/sourcecodes/bnt-master/nethelp3.3/demgmm5.htm b/sourcecodes/bnt-master/nethelp3.3/demgmm5.htm new file mode 100644 index 00000000..ed3caf1e --- /dev/null +++ b/sourcecodes/bnt-master/nethelp3.3/demgmm5.htm @@ -0,0 +1,55 @@ +<html> +<head> +<title> +Netlab Reference Manual demgmm5 +</title> +</head> +<body> +<H1> demgmm5 +</H1> +<h2> +Purpose +</h2> +Demonstrate density modelling with a PPCA mixture model. + +<p><h2> +Synopsis +</h2> +<PRE> +demgmm5</PRE> + + +<p><h2> +Description +</h2> + +The problem consists of modelling data generated +by a mixture of three Gaussians in 2 dimensions with a mixture model +using full covariance matrices. The priors are 0.3, 0.5 and 0.2; the +centres are (2, 3.5), (0, 0) and (0,2); the variances are (0.16, 0.64) +axis aligned, (0.25, 1) rotated by 30 degrees and the identity +matrix. The first figure contains a scatter plot of the data. + +<p>A mixture model with three one-dimensional PPCA components is trained +using EM. The parameter vector is printed before training and after +training. The parameter vector consists of priors (the column), and +centres (given as (x, y) pairs as the next two columns). + +<p>The second figure is a 3 dimensional view of the density function, +while the third shows the axes of the 1-standard deviation ellipses +for the three components of the mixture model together with the one +standard deviation along the principal component of each mixture +model component. + +<p><h2> +See Also +</h2> +<CODE><a href="gmm.htm">gmm</a></CODE>, <CODE><a href="gmminit.htm">gmminit</a></CODE>, <CODE><a href="gmmem.htm">gmmem</a></CODE>, <CODE><a href="gmmprob.htm">gmmprob</a></CODE>, <CODE><a href="ppca.htm">ppca</a></CODE><hr> +<b>Pages:</b> +<a href="index.htm">Index</a> +<hr> +<p>Copyright (c) Ian T Nabney (1996-9) + + +</body> +</html> \ No newline at end of file |