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| author | wolffd |
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| date | Tue, 10 Feb 2015 15:05:51 +0000 |
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| 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> |