Lalitha K. S. Perera's research focuses on the field of computer science, particularly in machine learning and artificial intelligence. She explores innovative algorithms and techniques to improve data analysis and predictive modeling, contributing to advancements in various applications. Additionally, her work often intersects with natural language processing and computer vision, aiming to enhance how machines understand and interpret human language and visual data. Through her studies, Perera seeks to address real-world challenges and improve the efficiency of automated systems in diverse industries.