Mercurial > hg > camir-aes2014
view toolboxes/FullBNT-1.0.7/bnt/general/mk_slice_and_half_dbn.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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function bnet15 = mk_slice_and_half_dbn(bnet, int) % function bnet = mk_slice_and_half_dbn(bnet, int) % function bnet = mk_slice_and_half_dbn(bnet, int) % % Create a "1.5 slice" jtree, containing the interface nodes of slice 1 % and all the nodes of slice 2 % To keep the node numbering the same, we simply disconnect the non-interface nodes % from slice 1, and set their size to 1. % We do this to speed things up, and so that the likelihood is computed correctly. % We do not need to do % this if we just want to compute marginals (i.e., we can include nodes whose potentials will % be left as all 1s). intra15 = bnet.intra; ss = length(bnet.intra); nonint = mysetdiff(1:ss, int); for i=nonint(:)' intra15(:,i) = 0; intra15(i,:) = 0; %assert(~any(bnet.inter(i,:))) end dag15 = [intra15 bnet.inter; zeros(ss) bnet.intra]; ns = bnet.node_sizes(:); ns(nonint) = 1; % disconnected nodes get size 1 obs_nodes = [bnet.observed(:) bnet.observed(:)+ss]; bnet15 = mk_bnet(dag15, ns, 'discrete', bnet.dnodes, 'equiv_class', bnet.equiv_class(:), ... 'observed', obs_nodes(:));