Yurena Gutiérrez-González


2016

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On the Use of a Serious Game for Recording a Speech Corpus of People with Intellectual Disabilities
Mario Corrales-Astorgano | David Escudero-Mancebo | Yurena Gutiérrez-González | Valle Flores-Lucas | César González-Ferreras | Valentín Cardeñoso-Payo
Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC'16)

This paper describes the recording of a speech corpus focused on prosody of people with intellectual disabilities. To do this, a video game is used with the aim of improving the user’s motivation. Moreover, the player’s profiles and the sentences recorded during the game sessions are described. With the purpose of identifying the main prosodic troubles of people with intellectual disabilities, some prosodic features are extracted from recordings, like fundamental frequency, energy and pauses. After that, a comparison is made between the recordings of people with intellectual disabilities and people without intellectual disabilities. This comparison shows that pauses are the best discriminative feature between these groups. To check this, a study has been done using machine learning techniques, with a classification rate superior to 80%.

2014

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On the use of a fuzzy classifier to speed up the Sp_ToBI labeling of the Glissando Spanish corpus
David Escudero | Lourdes Aguilar-Cuevas | César González-Ferreras | Yurena Gutiérrez-González | Valentín Cardeñoso-Payo
Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)

In this paper, we present the application of a novel automatic prosodic labeling methodology for speeding up the manual labeling of the Glissando corpus (Spanish read news items). The methodology is based on the use of soft classification techniques. The output of the automatic system consists on a set of label candidates per word. The number of predicted candidates depends on the degree of certainty assigned by the classifier to each of the predictions. The manual transcriber checks the sets of predictions to select the correct one. We describe the fundamentals of the fuzzy classification tool and its training with a corpus labeled with Sp TOBI labels. Results show a clear coherence between the most confused labels in the output of the automatic classifier and the most confused labels detected in inter-transcriber consistency tests. More importantly, in a preliminary test, the real time ratio of the labeling process was 1:66 when the template of predictions is used and 1:80 when it is not.