Mercurial > hg > camir-ismir2012
annotate toolboxes/FullBNT-1.0.7/bnt/inference/dynamic/@hmm_inf_engine/marginal_nodes.m @ 0:cc4b1211e677 tip
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Changeset:
646 (e263d8a21543) added further path and more save "camirversion.m"
| author | Daniel Wolff |
|---|---|
| date | Fri, 19 Aug 2016 13:07:06 +0200 |
| parents | |
| children |
| rev | line source |
|---|---|
| Daniel@0 | 1 function marginal = marginal_nodes(engine, nodes, t, add_ev) |
| Daniel@0 | 2 % MARGINAL_NODES Compute the marginal on the specified query nodes (hmm) |
| Daniel@0 | 3 % marginal = marginal_nodes(engine, nodes, t, add_ev) |
| Daniel@0 | 4 % |
| Daniel@0 | 5 % 'nodes' must be a single node. |
| Daniel@0 | 6 % t is the time slice. |
| Daniel@0 | 7 |
| Daniel@0 | 8 if nargin < 3, t = 1; end |
| Daniel@0 | 9 if nargin < 4, add_ev = 0; end |
| Daniel@0 | 10 |
| Daniel@0 | 11 assert(length(nodes)==1) |
| Daniel@0 | 12 ss = engine.slice_size; |
| Daniel@0 | 13 |
| Daniel@0 | 14 i = nodes(1); |
| Daniel@0 | 15 bigT = engine.one_slice_marginal(:,t); |
| Daniel@0 | 16 dom = i + (t-1)*ss; |
| Daniel@0 | 17 |
| Daniel@0 | 18 ns = engine.eff_node_sizes(:); |
| Daniel@0 | 19 bigdom = 1:ss; |
| Daniel@0 | 20 marginal.T = marg_table(bigT, bigdom + (t-1)*ss, ns(bigdom), dom, engine.maximize); |
| Daniel@0 | 21 |
| Daniel@0 | 22 marginal.domain = dom; |
| Daniel@0 | 23 marginal.mu = []; |
| Daniel@0 | 24 marginal.Sigma = []; |
| Daniel@0 | 25 |
| Daniel@0 | 26 if add_ev |
| Daniel@0 | 27 marginal = add_ev_to_dmarginal(marginal, engine.evidence, engine.node_sizes); |
| Daniel@0 | 28 end |
| Daniel@0 | 29 |