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comparison matlab/flstViterbiUpdate.m @ 1:4283604499f8 tip

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added mini probability to delta (not sure if this is a good idea, but I did it)
author matthiasm
date Mon, 10 Nov 2014 19:38:49 +0000
parents 1df4a6fb0d22
children
comparison
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0:1df4a6fb0d22 1:4283604499f8
34 if (currentValue > d.delta(toState)) 34 if (currentValue > d.delta(toState))
35 d.delta(toState) = currentValue; % will be multiplied by the right obs later! 35 d.delta(toState) = currentValue; % will be multiplied by the right obs later!
36 tempPsi(toState) = fromState; 36 tempPsi(toState) = fromState;
37 end 37 end
38 end 38 end
39 d.delta = d.delta .* obsLik; 39 % d.delta = d.delta .* obsLik;
40 d.delta = d.delta .* obsLik + eps;
40 deltaSum = sum(d.delta); 41 deltaSum = sum(d.delta);
41 42
42 if deltaSum > 0 43 if deltaSum > 0
43 d.oldDelta = d.delta / deltaSum; % normalise (scale) 44 d.oldDelta = d.delta / deltaSum; % normalise (scale)
44 d.scale(d.memory) = 1.0/deltaSum; 45 d.scale(d.memory) = 1.0/deltaSum;