LJaya optimisation-based channel selection approach for performance improvement of cognitive workload assessment technique

• Published in: Electronics letters 2020-07, Vol.56 (15), p.793-795
• Main Authors: Mohdiwale, S, Sahu, M, Sinha, G.R
• Format: Article
• Language: English
• Subjects: binary optimisation problem; brain analysis; brain cognitive load; cognition; cognitive workload assessment technique; CW analogous; EEG signal; electroencephalography; LJaya optimisation‐based channel selection approach; logical Jaya optimisation; medical signal processing; neurophysiology; optimisation; performance improvement; signal classification; Signal processing
• ISSN: 0013-5194; 1350-911X; 1350-911X
• DOI: 10.1049/el.2020.1011

In this Letter, the Logical Jaya optimisation is proposed as an extension of the Jaya optimisation algorithm to improve the cognitive workload (CW) assessment technique where channel selection for the EEG signal act as a binary optimisation problem. Channel selection is very crucial, time-consuming and requires expertise, specially when brain cognitive load is considered. The proposed approach is designed such that it not only improves the performance of the assessment model of CW but also reduces the computational cost. The approach also helps in the automation of brain analysis. The results obtained show that performance is improved by 22% than existing approaches to an average of >90% accuracy in different scenarios. The channels obtained using the approach also provided accurate active brain regions during CW analogous to previous studies.