Name: GUILHERME BUTZKE SCHREIBER GERING
Publication date: 20/12/2019
Examining board:
Name |
Role |
|---|---|
| EVANDRO OTTONI TEATINI SALLES | Advisor * |
| JORGE LEONID ACHING SAMATELO | External Examiner * |
Summary: Speech emotion recogntion is important in areas such as health, psychology, and telemedicine for information about an individuals states of emotions. Speech emotion recogntion is commonly performed in categorical classes, such as sadness or joy. According to Russells map of affection, emotions can also be classified by arousal (excitation), valence, and quadrants. In this work is proposed a method to increase the performance of speech emotion
recogntion in categorical classes using classifiers that perform intermediate classification in the classes of valence, excitation and quadrants using a multiview approach. Moreover, three types of classifiers perform the same task, using different features extracted from the voice signal, which combine in one Ensemble they tend to increase individual results. To combine these results and obtain the final classification, a decision tree is proposed and that increases F1 metrics from 0.61 by Ensemble of three kinds of classifiers to 0.63 in a public database.
