Mercurial > hg > camir-aes2014
view toolboxes/FullBNT-1.0.7/bnt/inference/dynamic/@pearl_unrolled_dbn_inf_engine/enter_evidence.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
---|---|
date | Tue, 10 Feb 2015 15:05:51 +0000 |
parents | |
children |
line wrap: on
line source
function [engine, loglik, niter] = enter_evidence(engine, evidence, varargin) % ENTER_EVIDENCE Add the specified evidence to the network (loopy_unrolled_dbn) % [engine, loglik, niter] = enter_evidence(engine, evidence, ....) % % evidence{i,t} = [] if if X(i,t) is hidden, and otherwise contains its observed value (scalar or column vector) % % The following optional arguments can be specified in the form of name/value pairs: % [default value in brackets] % % maximize - if 1, does max-product (not yet supported), else sum-product [0] % filename - as in loopy_pearl % % e.g., engine = enter_evidence(engine, ev, 'maximize', 1) maximize = 0; filename = engine.filename; if nargin >= 2 args = varargin; nargs = length(args); for i=1:2:nargs switch args{i}, case 'maximize', maximize = args{i+1}; case 'filename', filename = args{i+1}; end end end [ss T] = size(evidence); if T ~= engine.T bnetT = dbn_to_bnet(bnet_from_engine(engine), T); engine.unrolled_engine = pearl_inf_engine(bnetT, 'protocol', engine.protocol, ... 'max_iter', engine.max_iter_per_slice * T, ... 'tol', engine.tol, 'momentum', engine.momentum); engine.T = T; end [engine.unrolled_engine, loglik, niter] = enter_evidence(engine.unrolled_engine, evidence(:), ... 'maximize', maximize, 'filename', filename);