hdv = mlphdotv(net, x, t, v)
hdv = mlphdotv(net, x, t, v) takes an MLP network data structure
net, together with the matrix x of input vectors, the
matrix t of target vectors and an arbitrary row vector v
whose length equals the number of parameters in the network, and
returns the product of the data-dependent contribution to the Hessian
matrix with v. The implementation is based on the R-propagation
algorithm of Pearlmutter.
mlp, mlphess, hesschekCopyright (c) Ian T Nabney (1996-9)