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Diffstat (limited to 'sourcecodes/bnt-master/BNT/examples/static/Models/mk_qmr_bnet.m')
| -rw-r--r-- | sourcecodes/bnt-master/BNT/examples/static/Models/mk_qmr_bnet.m | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sourcecodes/bnt-master/BNT/examples/static/Models/mk_qmr_bnet.m b/sourcecodes/bnt-master/BNT/examples/static/Models/mk_qmr_bnet.m new file mode 100644 index 00000000..1532ae4c --- /dev/null +++ b/sourcecodes/bnt-master/BNT/examples/static/Models/mk_qmr_bnet.m @@ -0,0 +1,41 @@ +function bnet = mk_qmr_bnet(G, inhibit, leak, prior, tabular_findings, onodes) +% MK_QMR_BNET Make a QMR model +% bnet = mk_qmr_bnet(G, inhibit, leak, prior) +% +% G(i,j) = 1 iff there is an arc from disease i to finding j +% inhibit(i,j) = inhibition probability on i->j arc +% leak(j) = inhibition prob. on leak->j arc +% prior(i) = prob. disease i is on +% tabular_findings = 1 means multinomial leaves (ignores leak/inhibit params) +% = 0 means noisy-OR leaves (default = 0) + +if nargin < 5, tabular_findings = 0; end + +[Ndiseases Nfindings] = size(inhibit); +N = Ndiseases + Nfindings; +finding_node = Ndiseases+1:N; +ns = 2*ones(1,N); +dag = zeros(N,N); +dag(1:Ndiseases, finding_node) = G; +if nargin < 6, onodes = finding_node; end +bnet = mk_bnet(dag, ns, 'observed', onodes); + +for d=1:Ndiseases + CPT = [1-prior(d) prior(d)]; + bnet.CPD{d} = tabular_CPD(bnet, d, CPT'); +end + +for i=1:Nfindings + fnode = finding_node(i); + ps = parents(G, i); + if tabular_findings + bnet.CPD{fnode} = tabular_CPD(bnet, fnode); + else + bnet.CPD{fnode} = noisyor_CPD(bnet, fnode, leak(i), inhibit(ps, i)); + end +end + + + + + |
