Hidden Markov Models

p(A) p(B<-A) p(B)
p(A<-A) p(B<-B)
P(A<-B)
P(X<-A) P(Y<-A) P(X<-B) P(Y<-B)
 
p(A1) = p(A1<-A0)*p(A0) + p(A1<-B0)*p(B0)
= (*) + (*)
 
p(B1) = p(B1<-B0)*p(B0) + p(B1<-A0)*p(A0)
= (*) + (*)
 
p(X1) = p(X1<-A1)*p(A1) + p(X1<-B1)*p(B1)
= (*) + (*)
 
p(A1<-X1) = p(X1<-A1) * p(A1) / p(X1)
= * /
 
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*  Campurile marcate cu steluta sunt obligatorii.