Look-Ahead Techniques For Fast Beam Search

Look-Ahead Techniques For Fast Beam Search (1997)

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by S. Ortmanns , H. Ney , N. Coenen , A. Eiden

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Datum	Value	Source
TITLE	Look-Ahead Techniques For Fast Beam Search	user correction - Legacy Corrections
AUTHOR NAME	S. Ortmanns	SVM HeaderParse 0.1
AUTHOR AFFIL	Lehrstuhl fur Informatik VI, RWTH Aachen-- University of Technology,	SVM HeaderParse 0.2
AUTHOR ADDR	D-52056 Aachen, Germany	SVM HeaderParse 0.1
AUTHOR NAME	H. Ney	SVM HeaderParse 0.1
AUTHOR AFFIL	Lehrstuhl fur Informatik VI, RWTH Aachen-- University of Technology,	SVM HeaderParse 0.2
AUTHOR ADDR	D-52056 Aachen, Germany	SVM HeaderParse 0.1
AUTHOR NAME	N. Coenen	SVM HeaderParse 0.1
AUTHOR AFFIL	Lehrstuhl fur Informatik VI, RWTH Aachen-- University of Technology,	SVM HeaderParse 0.2
AUTHOR ADDR	D-52056 Aachen, Germany	SVM HeaderParse 0.1
AUTHOR NAME	A. Eiden	SVM HeaderParse 0.1
AUTHOR AFFIL	Lehrstuhl fur Informatik VI, RWTH Aachen-- University of Technology,	SVM HeaderParse 0.2
AUTHOR ADDR	D-52056 Aachen, Germany	SVM HeaderParse 0.1
ABSTRACT	this paper, we present two efficient look-ahead pruning techniques in beam search for large vocabulary continuous speech recognition. Both techniques, the language model look-ahead and the phoneme look-ahead, are incorporated into the word conditioned search algorithm using a bigram language model and a lexical prefix tree [5]. The paper present the following novel contributions: ffl We describe a method for language model (LM) look-ahead pruning which is similar to [1, 9]. We show special techniques to reduce the memory and computational requirements. These techniques are based on a compressed LM look-ahead tree. To compute the LM look-ahead tree probabilites in an efficient way, we present a backward dynamic programming scheme	user correction - Legacy Corrections
YEAR	1997	user correction - Legacy Corrections
CITATIONS	9 found	ParsCit 1.0