Publications

Published

Evaluating Fine-Scale Air-Quality Heterogeneity Using a Low-Cost Multipollutant Sensor Network in Twin Cities, Minnesota

A. Yatawara et al.

ACS ES&T Air, 2025

Income-Based Exposure Disparities Across California Counties, 2000–2023: A Generalizable Statistical Framework

A. Yatawara, K. Ko, C. Rodriguez

Environmental Research: Health, 2025

WIP: Structured AI Tutoring in Engineering Education

A. Cruz, A. Yatawara, et al.

IEEE Frontiers in Education Conference (FIE), 2025

Computer-Aided Instruction for K–12 Teachers: A Cognitive Apprenticeship Approach to LLM Integration

A. Cruz, A. Yatawara, et al.

IEEE Frontiers in Education Conference (FIE), 2025

Under Review

From Answer Generators to Thinking Partners: Scaffolded LLM Tutors in Statistics Education

A. Yatawara, J. Wang, A. Cruz, M. Mishra

Submitted to Journal of Statistics and Data Science Education (JSDSE), 2025

Conference Proceedings

A Multiplicative Factor Multi-Frequency Exponential GARCH Model

A. Yatawara, V.A. Samaranayake

JSM Proceedings — Business and Economic Statistics Section, 2022

An Asymmetric Hyperbolic Generalized Autoregressive Conditional Heteroscedastic Model

A. Yatawara, V.A. Samaranayake

JSM Proceedings — Business and Economic Statistics Section, 2021

Dissertation

The Multiplicative Factor Multi-Frequency Exponential GARCH ((MF)²EGARCH)

A. Yatawara

Ph.D. Dissertation, Missouri University of Science and Technology, 2023

Working Papers

The Shape of Volatility Memory: Sub-Exponential ARCH(∞) Kernels Across 100+ Financial Assets In production

A. Yatawara

Target: Journal of Business & Economic Statistics

MF2V-GARCH: Augmenting Multi-Factor Volatility with Smoothed Trading Volume In production

A. Yatawara

Target: Journal of Forecasting

MF2-GARCH-A: Volatility Modelling with a Sign-Sensitive Long-Run Component Near completion

A. Yatawara, V.A. Samaranayake

Target: International Journal of Forecasting

The Multiplicative Factor Multi-Frequency Exponential GARCH (MF2-EGARCH) Near completion

A. Yatawara, V.A. Samaranayake

Target: International Journal of Forecasting

Multiple Regime Hyperbolic GARCH (MR-HYGARCH): A Regime-Switching Asymmetric Long-Memory Model Near completion

A. Yatawara, V.A. Samaranayake

Target: TBD

Improving Influenza Forecasting: A GRU-CNN Hybrid Model with Yeo-Johnson Scaling In preparation

A. Yatawara, N. Gallego, I. Ratnayake

Target: TBD

Selected Presentations

Year Title Venue
2025 Hybrid LSTM Deep Learning Model for Forecasting Influenza-Like Illnesses JSM, Nashville, TN (Contributed Paper)
2025 Findings from ELEVATE AI in Education Day, UC Berkeley (Invited Panel)
2025 Build Your AI Teaching Assistant NextTech Kern (Session Lead)
2022 A Multiplicative Factor Multi-Frequency Exponential GARCH Model JSM, Washington DC (Contributed Paper)
2021 The Asymmetric Hyperbolic GARCH Model JSM Virtual (Speed Presentation)