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1 <html>
2 <head>
3 <title>
4 Netlab Reference Manual glmevfwd
5 </title>
6 </head>
7 <body>
8 <H1> glmevfwd
9 </H1>
10 <h2>
11 Purpose
12 </h2>
13 Forward propagation with evidence for GLM
14
15 <p><h2>
16 Synopsis
17 </h2>
18 <PRE>
19
20 [y, extra] = glmevfwd(net, x, t, x_test)
21 [y, extra, invhess] = glmevfwd(net, x, t, x_test, invhess)
22 </PRE>
23
24
25 <p><h2>
26 Description
27 </h2>
28 <CODE>y = glmevfwd(net, x, t, x_test)</CODE> takes a network data structure
29 <CODE>net</CODE> together with the input <CODE>x</CODE> and target <CODE>t</CODE> training data
30 and input test data <CODE>x_test</CODE>.
31 It returns the normal forward propagation through the network <CODE>y</CODE>
32 together with a matrix <CODE>extra</CODE> which consists of error bars (variance)
33 for a regression problem or moderated outputs for a classification problem.
34
35 <p>The optional argument (and return value)
36 <CODE>invhess</CODE> is the inverse of the network Hessian
37 computed on the training data inputs and targets. Passing it in avoids
38 recomputing it, which can be a significant saving for large training sets.
39
40 <p><h2>
41 See Also
42 </h2>
43 <CODE><a href="fevbayes.htm">fevbayes</a></CODE><hr>
44 <b>Pages:</b>
45 <a href="index.htm">Index</a>
46 <hr>
47 <p>Copyright (c) Ian T Nabney (1996-9)
48
49
50 </body>
51 </html>