Chamalka Dharmasiri

Brief description

Chamalka Dharmasiri, currently working as a Lecturer (Probationary) at the Department of Mathematics, Faculty of Science, University of Peradeniya. She commenced my MPhil degree in 2025 at the Department of Mathematics, Faculty of Science, University of Kelaniya, where she is undertaking a full-time research programme under the supervision of Dr. Upeksha Perera. Her research is titled “Neural–Fuzzy Controller for Stabilising Hyper Chaotic Financial Systems with Self-Reinforcing Feedback Loop in Market Sentiment.” This research studies complex financial systems that exhibit chaotic and hyper-chaotic behaviour. The main objective is to design a neural–fuzzy controller to stabilise such systems, particularly when market sentiment includes a self-reinforcing feedback effect. The study combines nonlinear dynamics with intelligent control methods, while ensuring that the proposed algorithms are reliable, robust, and applicable in realistic financial settings.

Supervisor Details: 

Dr. Upeksha Perera 

Senior Lecturer 

Department of Mathematics, Faculty of Science, University of Kelaniya 

Email: upeksha@kln.ac.lk 

Publications: 

● Presented at the Research Colloquium (June 2025) organized by the Research Services Centre, University of Kelaniya, on 11th June 2025, with the proposal presentation titled “Neural Fuzzy Controller for Stabilizing Hyper-Chaotic Financial Systems with Self-reinforcing Feedback Loop in Market Sentiment.” 

● Dharmasiri, C. H., & Perera, B. B. U. P. (2025). Dynamic analysis of a chaotic financial system with self-reinforcing feedback loop in market sentiment. Proceedings of the International Conference on Applied and Pure Sciences, 2025. [Best Presenter Award]. 

● Dharmasiri, C. H., & Perera, B. B. U. P. (2025). Dynamic Analysis of a Chaotic Financial System with Reflexive Market Sentiment. Dynamics, 5(4), 47.  doi:10.3390/dynamics5040047 

● Participated and presented at SIMIODE EXPO 2025 on 15th February 2025, with the presentation titled “Dynamic Analysis of a Hyper-Chaotic Financial System with Self reinforcing Feedback Loop in Market Sentiment.”  

● Participated as a finalist and presented at the NIFS Three Minute Thesis (3MT) Competition 2025, with the presentation titled “Dynamic Analysis of a 4D Hyper Chaotic Financial System with a Self-Reinforcing Feedback Loop in Market Sentiment.” 

Contact Details: 

Email: chamalka.dharmasiri@gmail.com 

Phone: +94 76 859 9950