# 13 max m1 q q q q1 1 and for t 2 3 t

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Unformatted text preview: e them using only the max marginals. pm (DQ1:T (1, 1)) = (9.13) max m1 (q ) ∗ q |q =q1 (1) and for t ∈ {2, 3, . . . , T } ∗ pm (DQ1:T (1, t)) = max mt−1,t (qt−1 (1), q ) ∗ (9.14) q =qt (1) Prof. Jeﬀ Bilmes EE596A/Winter 2013/DGMs – Lecture 9 - Feb 6th, 2013 page 9-18 (of 180) k-best without the penalty Island Summary Scratch Find the block with the maximum score Deﬁne block scores, for each t ∈ {1, 2, . . . , T }, the following: ∆ pm (DQ1:T (1, t)) = max q1:T ∈DQ1:T (1,t) (9.12) p(q1:T , x1:T ) ¯ can compute them using only the max marginals. pm (DQ1:T (1, 1)) = (9.13) max m1 (q ) ∗ q |q =q1 (1) and for t ∈ {2, 3, . . . , T } ∗ pm (DQ1:T (1, t)) = max mt−1,t (qt−1 (1), q ) ∗ (9.14) q =qt (1) Finding the maximum block score then is easy: ∗ p(q1:T (2), x1:T ) = max pm (DQ1:T (1, t)) ¯ (9.15) t Prof. Jeﬀ Bilmes EE596A/Winter 2013/DGMs – Lecture 9 - Feb 6th, 2013 page 9-18 (of 180) k-best without the penalty Island Summary Scratch The maximum score block Suppose t(2) ∈ argmaxt pm (DQ1:T (1, t)) is...
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## This document was uploaded on 04/05/2014.

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