Mercurial > hg > camir-aes2014
diff toolboxes/FullBNT-1.0.7/bnt/CPDs/@tabular_kernel/Old/tabular_kernel.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
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date | Tue, 10 Feb 2015 15:05:51 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toolboxes/FullBNT-1.0.7/bnt/CPDs/@tabular_kernel/Old/tabular_kernel.m Tue Feb 10 15:05:51 2015 +0000 @@ -0,0 +1,45 @@ +function K = tabular_kernel(fg, self) +% TABULAR_KERNEL Make a table-based local kernel (discrete potential) +% K = tabular_kernel(fg, self) +% +% fg is a factor graph +% self is the number of a representative domain +% +% Use 'set_params_kernel' to adjust the following fields +% table - a q[1]xq[2]x... array, where q[i] is the number of values for i'th node +% in this domain [default: random values from [0,1], which need not sum to 1] + + +if nargin==0 + % This occurs if we are trying to load an object from a file. + K = init_fields; + K = class(K, 'tabular_kernel'); + return; +elseif isa(fg, 'tabular_kernel') + % This might occur if we are copying an object. + K = fg; + return; +end +K = init_fields; + +ns = fg.node_sizes; +dom = fg.doms{self}; +% we don't store the actual domain since it may vary due to parameter tieing +K.sz = ns(dom); +K.table = myrand(K.sz); + +K = class(K, 'tabular_kernel'); + + +%%%%%%% + + +function K = init_fields() +% This ensures we define the fields in the same order +% no matter whether we load an object from a file, +% or create it from scratch. (Matlab requires this.) + +K.table = []; +K.sz = []; + +