diff options
Diffstat (limited to 'sourcecodes/bnt-master/BNT/examples/dynamic/Old/online2.m')
| -rw-r--r-- | sourcecodes/bnt-master/BNT/examples/dynamic/Old/online2.m | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sourcecodes/bnt-master/BNT/examples/dynamic/Old/online2.m b/sourcecodes/bnt-master/BNT/examples/dynamic/Old/online2.m new file mode 100644 index 00000000..6b141f19 --- /dev/null +++ b/sourcecodes/bnt-master/BNT/examples/dynamic/Old/online2.m @@ -0,0 +1,33 @@ +N = 1; % regular HMM +Q = 2; +ss = 2; +hnodes = 1; +onodes = 2; + +rand('state', 0); +randn('state', 0); +O = 2; +discrete_obs = 1; +bnet = mk_chmm(N, Q, O, discrete_obs); +ns = bnet.node_sizes_slice; + +engine = hmm_inf_engine(bnet, onodes); + +T = 4; +ev = cell(ss,T); +ev(onodes,:) = num2cell(sample_discrete([0.5 0.5], N, T)); + + +engine = dbn_init_bel(engine); +for t=1:T + if t==1 + [engine, ll(t)] = dbn_update_bel1(engine, ev(:,t)); + else + [engine, ll(t)] = dbn_update_bel(engine, ev(:,t-1:t)); + end + % one-step ahead prediction + lag = 1; + engine2 = dbn_predict_bel(engine, lag); + marg = dbn_marginal_from_bel(engine2, 1) + marg = dbn_marginal_from_bel(engine2, 2) +end |