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Ensemble of machine learning algorithms for cognitive and physical speaker load detection
Conference paper

Ensemble of machine learning algorithms for cognitive and physical speaker load detection

How Jing, Ting-Yao Hu, Hung-Shin Lee, Wei-Chen Chen, Chi-Chun Lee, Yu Tsao and Hsin-Min Wang
Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH, pp.447-451
2014

Abstract

Classification models Cognitive load detection Neural network Physical load detection
We present our methods and results on participating in the Interspeech 2014 Computational Paralinguistics ChallengE (Com- ParE) of which the goal is to detect certain type of load of a speaker using acoustic features. There are in total seven classification models contributing to our final prediction, namely, neural network with rectified linear unit and dropout (ReLUNet), conditional restricted Boltzmann machine (CRBM), logistic regression (LR), support vector machine (SVM), Gaussian discriminant analysis (GDA), k-nearest neighbors (KNN), and random forest (RF). When linearly blending the predictions of these models, we are able to get significant improvements over the challenge baseline. Copyright © 2014 ISCA.

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