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Speech & natural language publications October 1, 2004 Conference Paper

Morphology-Based Language Modeling for Arabic Speech Recognition

SRI International October 1, 2004

Abstract

Language modeling is a difficult problem for languages with rich morphology. In this paper we investigate the use of morphology-based language models at different stages in a speech recognition system for conversational Arabic. Class-based and single-stream factored language models using morphological word representations are applied within an N-best list rescoring framework. In addition, we explore the use of factored language models in first-pass recognition, which is facilitated by two novel procedures: the data-driven optimization of a multi-stream language model structure, and the conversion of a factored language model to a standard word-based model. […]

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