comparison toolboxes/FullBNT-1.0.7/nethelp3.3/mdnerr.htm @ 0:e9a9cd732c1e tip

first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
parents
children
comparison
equal deleted inserted replaced
-1:000000000000 0:e9a9cd732c1e
1 <html>
2 <head>
3 <title>
4 Netlab Reference Manual mdnerr
5 </title>
6 </head>
7 <body>
8 <H1> mdnerr
9 </H1>
10 <h2>
11 Purpose
12 </h2>
13 Evaluate error function for Mixture Density Network.
14
15 <p><h2>
16 Synopsis
17 </h2>
18 <PRE>
19 e = mdnerr(net, x, t)
20 </PRE>
21
22
23 <p><h2>
24 Description
25 </h2>
26
27 <CODE>e = mdnerr(net, x, t)</CODE> takes a mixture density network data
28 structure <CODE>net</CODE>, a matrix <CODE>x</CODE> of input vectors and a matrix
29 <CODE>t</CODE> of target vectors, and evaluates the error function
30 <CODE>e</CODE>. The error function is the negative log likelihood of the
31 target data under the conditional density given by the mixture model
32 parameterised by the MLP. Each row of <CODE>x</CODE> corresponds to one
33 input vector and each row of <CODE>t</CODE> corresponds to one target vector.
34
35 <p><h2>
36 See Also
37 </h2>
38 <CODE><a href="mdn.htm">mdn</a></CODE>, <CODE><a href="mdnfwd.htm">mdnfwd</a></CODE>, <CODE><a href="mdngrad.htm">mdngrad</a></CODE><hr>
39 <b>Pages:</b>
40 <a href="index.htm">Index</a>
41 <hr>
42 <p>Copyright (c) Ian T Nabney (1996-9)
43 <p>David J Evans (1998)
44
45 </body>
46 </html>