Classification of Emotional Speech Based on an Automatically Elaborated Hierarchical Classifier
Joint Authors
Chen, Liming
Xiao, Zhongzhe
Dellandrea, Emmanuel
Dou, Weibei
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-02-20
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Electronic engineering
Information Technology and Computer Science
Abstract EN
Current machine-based techniques for vocal emotion recognition only consider a finite number of clearly labeled emotional classes whereas the kinds of emotional classes and their number are typically application dependent.
Previous studies have shown that multistage classification scheme, because of ambiguous nature of affect classes, helps to improve emotion classification accuracy.
However, these multistage classification schemes were manually elaborated by taking into account the underlying emotional classes to be discriminated.
In this paper, we propose an automatically elaborated hierarchical classification scheme (ACS), which is driven by an evidence theory-based embedded feature-selection scheme (ESFS), for the purpose of application-dependent emotions' recognition.
Experimented on the Berlin dataset with 68 features and six emotion states, this automatically elaborated hierarchical classifier (ACS) showed its effectiveness, displaying a 71.38% classification accuracy rate compared to a 71.52% classification rate achieved by our previously dimensional model-driven but still manually elaborated multistage classifier (DEC).
Using the DES dataset with five emotion states, our ACS achieved a 76.74% recognition rate compared to a 81.22% accuracy rate displayed by a manually elaborated multistage classification scheme (DEC).
American Psychological Association (APA)
Xiao, Zhongzhe& Dellandrea, Emmanuel& Dou, Weibei& Chen, Liming. 2011. Classification of Emotional Speech Based on an Automatically Elaborated Hierarchical Classifier. ISRN Signal Processing،Vol. 2011, no. 2011, pp.1-15.
https://search.emarefa.net/detail/BIM-496087
Modern Language Association (MLA)
Xiao, Zhongzhe…[et al.]. Classification of Emotional Speech Based on an Automatically Elaborated Hierarchical Classifier. ISRN Signal Processing No. 2011 (2011), pp.1-15.
https://search.emarefa.net/detail/BIM-496087
American Medical Association (AMA)
Xiao, Zhongzhe& Dellandrea, Emmanuel& Dou, Weibei& Chen, Liming. Classification of Emotional Speech Based on an Automatically Elaborated Hierarchical Classifier. ISRN Signal Processing. 2011. Vol. 2011, no. 2011, pp.1-15.
https://search.emarefa.net/detail/BIM-496087
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-496087