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A classifier model for detecting pronunciation errors regarding the Nasa Yuwe language's 32 vowels
Modelo de clasificación para la detección de errores en la pronunciación de las 32 vocales de la lengua Nasa Yuwe
DOI:
https://doi.org/10.15446/ing.investig.v32n2.31944Keywords:
Classifier model, Nasa Yuwe language, pronunciation correction, pattern recognition, computer-assisted language learning (CALL) (en)modelos de clasificación, lengua nasa yuwe, corrección de la pronunciación, reconocimiento de patrones, CALL (Computer Assisted Language Learning) (es)
The Nasa Yuwe language has 32 oral and nasal vowels thereby leading to one being used instead of the other; such confusion can change the meaning of the spoken word in Nasa Yuwe. A set of classifier models have been developed to support correct learning of this language which is in danger of extinction aimed at detecting confusion in the pronunciation of the 32 vowels; about 85% were obtained after experimenting with a variety of linear and nonlinear classifiers, rates of sensitivity, specificity and accuracy. A support software prototype was designed with these trained classifiers for the correct pronunciation of the language's vowels.
La lengua nasa yuwe tiene 32 vocales, dividas en orales y nasales, lo que lleva a confusiones en las que una vocal es utilizada en lugar de otra. En nasa yuwe esta confusión puede cambiar el significado de las palabras pronunciadas. Con el fin de apoyar el aprendizaje correcto de esta lengua en peligro de extinción se ha desarrollado un conjunto de modelos de clasificación que permitan detectar tales confusiones de pronunciación de las 32 vocales. Luego de experimentar con una variedad de clasificadores lineales y no lineales, las tasas de sensibilidad, especificidad y precisión que se obtuvieron están alrededor del 85%. Con los clasificadores entrenados se construyó un prototipo de herramienta de software diseñada para apoyar la práctica de la correcta pronunciación de las vocales de esta lengua.
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Copyright (c) 2012 Roberto Carlos Naranjo Cuervo, Gloria Inés Álvarez Vargas
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