diff options
Diffstat (limited to 'sourcecodes/bnt-master/BNT/inference/dynamic/@hmm_inf_engine/find_mpe.m')
| -rw-r--r-- | sourcecodes/bnt-master/BNT/inference/dynamic/@hmm_inf_engine/find_mpe.m | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sourcecodes/bnt-master/BNT/inference/dynamic/@hmm_inf_engine/find_mpe.m b/sourcecodes/bnt-master/BNT/inference/dynamic/@hmm_inf_engine/find_mpe.m new file mode 100644 index 00000000..ba2cba74 --- /dev/null +++ b/sourcecodes/bnt-master/BNT/inference/dynamic/@hmm_inf_engine/find_mpe.m @@ -0,0 +1,16 @@ +function mpe = find_mpe(engine, evidence) +% FIND_MPE Find the most probable explanation (Viterbi) +% mpe = enter_evidence(engine, evidence, ...) +% +% evidence{i,t} = [] if if X(i,t) is hidden, and otherwise contains its observed value (scalar or column vector) +% + +obslik = mk_hmm_obs_lik_matrix(engine, evidence); +path = viterbi_path(engine.startprob, engine.transprob, obslik); +bnet = bnet_from_engine(engine); +ns = bnet.node_sizes_slice; +ns(bnet.observed) = 1; +ass = ind2subv(ns, path); +mpe = num2cell(ass'); +mpe(bnet.observed,:) = evidence(bnet.observed,:); + |
