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IEICE TRANSACTIONS on Information

Automatic Allocation of Training Data for Speech Understanding Based on Multiple Model Combinations

Kazunori KOMATANI, Mikio NAKANO, Masaki KATSUMARU, Kotaro FUNAKOSHI, Tetsuya OGATA, Hiroshi G. OKUNO

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Summary :

The optimal way to build speech understanding modules depends on the amount of training data available. When only a small amount of training data is available, effective allocation of the data is crucial to preventing overfitting of statistical methods. We have developed a method for allocating a limited amount of training data in accordance with the amount available. Our method exploits rule-based methods for when the amount of data is small, which are included in our speech understanding framework based on multiple model combinations, i.e., multiple automatic speech recognition (ASR) modules and multiple language understanding (LU) modules, and then allocates training data preferentially to the modules that dominate the overall performance of speech understanding. Experimental evaluation showed that our allocation method consistently outperforms baseline methods that use a single ASR module and a single LU module while the amount of training data increases.

Publication
IEICE TRANSACTIONS on Information Vol.E95-D No.9 pp.2298-2307
Publication Date
2012/09/01
Publicized
Online ISSN
1745-1361
DOI
10.1587/transinf.E95.D.2298
Type of Manuscript
PAPER
Category
Speech and Hearing

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