Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6951506 | Computer Speech & Language | 2018 | 13 Pages |
Abstract
This paper presents a technique that applies the pairwise variability index (PVI), a rhythm metric that quantifies variability in speech rhythm, to the classification of speech varieties. The technique combines the Particle Swarm Optimization (PSO) algorithm with a generalization of several rhythm metrics that are based on the PVI. The performance of this optimization-oriented classification is compared with classification that uses conventional (both PVI-based and interval-based) rhythm metrics. Application is made to the classification of native and non-native Arabic speech using data are from the West Point Arabic Speech Corpus; experiments are based on segmental durations and use Support Vector Machine (SVM) classification. Results show that the optimization-oriented classification provides a better discrimination between native and non-native speech varieties than classification based of the conventional rhythm metrics. When added to different combinations of these conventional metrics, the optimization-oriented procedure consistently improves classification rates.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Soumaya Gharsellaoui, Sid Ahmed Selouani, Wladyslaw Cichocki, Yousef Alotaibi, Adel Omar Dahmane,