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Combinaison de systèmes par décodage guidé
Abstract : In this paper, we propose an integrated approach for system combination named Driven Decoding Algorithm (DDA). It consists in guiding the search algorithm of a primary ASR system by the outputs of a auxiliary systems. We first evaluate this method in simple configuration in which the primary search is driven by the one-best hypothesis of a single auxiliary system. Then, we generalize DDA to confusion-network driven decoding and we propose a general combination schemes for multiple system combination. The proposed extended DDA is evaluated using 3 ASR systems from different labs. Results show that generalized-DDA outperforms significantly ROVER method : we obtain a 15.7% relative word error rate improvement with respect to the best single system, as opposed to 8.5% with the ROVER combination.
Cited literature [12 references]
https://hal.archives-ouvertes.fr/hal-01318091
Contributor : Bibliothèque Universitaire Déposants Hal-Avignon Connect in order to contact the contributor
Submitted on : Thursday, November 9, 2017 - 9:21:31 AM
Last modification on : Monday, April 4, 2022 - 9:28:19 AM
Long-term archiving on: : Saturday, February 10, 2018 - 12:48:27 PM
Contributor : Bibliothèque Universitaire Déposants Hal-Avignon Connect in order to contact the contributor
Submitted on : Thursday, November 9, 2017 - 9:21:31 AM
Last modification on : Monday, April 4, 2022 - 9:28:19 AM
Long-term archiving on: : Saturday, February 10, 2018 - 12:48:27 PM
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