DBN, inference algorithms and unrolling

[saifjamal]

Thank you shooltz

[saifjamal]

Hi

I have unrolled my DBN to 5 time slices. I have entered evidences for the 5 time slices and performed the inference using the Polytree algorithm. Is the inference considered Filtering in this case P(Xt|y1:t)?

Regards

[Martijn]

Depends on your model structure, but assuming you set evidence for "evidence nodes" and are looking at the "hidden nodes", I'd say yes if you are looking a the hidden node x in time slice 5.

[saifjamal]

Thanks Martijn