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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/18116

Title: Two-stage dimensional emotion recognition by fusing predictions of acoustic and text networks using SVM
Authors: Atmaja, Bagus Tris
Akagi, Masato
Keywords: Automatic speech emotion recognition
Affective computing
Late fusion
Bimodal fusion
Dimensional emotion
Issue Date: 2020-11-19
Publisher: Elsevier
Magazine name: Speech Communication
Volume: 126
Start page: 9
End page: 21
DOI: 10.1016/j.specom.2020.11.003
Abstract: Automatic speech emotion recognition (SER) by a computer is a critical component for more natural human-machine interaction. As in human-human interaction, the capability to perceive emotion correctly is essential to taking further steps in a particular situation. One issue in SER is whether it is necessary to combine acoustic features with other data such as facial expressions, text, and motion capture. This research proposes to combine acoustic and text information by applying a late-fusion approach consisting of two steps. First, acoustic and text features are trained separately in deep learning systems. Second, the prediction results from the deep learning systems are fed into a support vector machine (SVM) to predict the final regression score. Furthermore, the task in this research is dimensional emotion modeling, because it can enable deeper analysis of affective states. Experimental results show that this two-stage, late-fusion approach, obtains higher performance than that of any one-stage processing, with a linear correlation from one-stage to two-stage processing. This late-fusion approach improves previous early fusion result measured in concordance correlation coefficients score.
Rights: Copyright (C)2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license (CC BY-NC-ND 4.0). [http://creativecommons.org/licenses/by-nc-nd/4.0/] NOTICE: This is the author’s version of a work accepted for publication by Elsevier. Changes resulting from the publishing process, including peer review, editing, corrections, structural formatting and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Bagus Tris Atmaja, Masato Akagi, and Peter Birkholz, Speech Communication, 126, 2020, 9-21, https://doi.org/10.1016/j.specom.2020.11.003
URI: http://hdl.handle.net/10119/18116
Material Type: author
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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