Work place: Faculty of Pure and Applied Science, Department of Computing, Jomo Kenyatta University of Agriculture and Technology Nairobi, Kenya
E-mail: kodhiambo@scit.jkuat.ac.ke
Website:
Research Interests:
Biography
Dr. Kennedy Ogada: PhD, co-Author, is Lecturer at Jomo Kenyatta University of Agriculture and Technology (JKUAT), Faculty of Pure and Applied Science, Department of Computing with Interests in Project Management, Penetration Testing, Quality Assurance, IT Audit and Strategy Development.
By Simon Kipyatich Kiptoo Kennedy Ogada Tobias Mwalili
DOI: https://doi.org/10.5815/ijisa.2025.06.04, Pub. Date: 8 Dec. 2025
This paper presents an ensemble model in the determination of manifestation of emotion intensities from audio-dataset. An emotion denotes the mental state of the human mind or/and thought processes that represents a recognizable pattern of an entity like emotion arousal having a good similarity with its manifestation of vocal, facial or/and bodily signals. In this paper, we propose a stacking, late fusion approach where the best experimental outcome from two base models build from Random Forests and Extreme Gradient Boost are combined using simple majority voting. RAVDESS audio datasets, a public gender balanced dataset built by Ryerson University of Canada for the purpose of emotion study was used. 80% of the dataset was used for training while 20% was used for testing. Two features, MFCC and Chroma were introduced to the base models in a series of experimental setups and the outcome evaluated using confusion matrix, precision, recall and F1-Score. It was then compared to two state-of-the-art works done on KBES and RAVDESS datasets. This approach yielded an overall classification accuracy of 93%.
[...] Read more.Subscribe to receive issue release notifications and newsletters from MECS Press journals