Title
A Forward Backward Algorithm For Ml State And Sequence Estimation
Abstract
The classical Viterbi algorithm is used to estimate the maximum likelihood state sequence from a block of observed data. It achieves this by maximising a forward path probability measure. In an analogous manner a backward path probability measure can be generated which leads to the development of a Viterbi forward-backward algorithm. This algorithm computes an ''a posteriori maximum path probability'' for each state at a given time. The resulting probability distribution across all possible state at time t can be used as a soft output for further processing. Maximising a posteriori maximum path probability at each time gives the same state sequence as obtained from the classical Viterbi algorithm.
Year
Venue
Keywords
1996
ISSPA 96 - FOURTH INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND ITS APPLICATIONS, PROCEEDINGS, VOLS 1 AND 2
forward backward algorithm,probability measure,viterbi algorithm,maximum likelihood,probability distribution,probability,maximum likelihood estimation,adaptive systems,robustness
Field
DocType
Citations 
Forward algorithm,Pattern recognition,Expectation–maximization algorithm,Soft output Viterbi algorithm,Probability measure,Probability distribution,Artificial intelligence,Maximum likelihood sequence estimation,Iterative Viterbi decoding,Mathematics,Viterbi algorithm
Conference
2
PageRank 
References 
Authors
0.96
4
3
Name
Order
Citations
PageRank
Gary D. Brushe132.01
Robert E. Mahony21691162.83
JOHN B. MOORE341284.61