My research: vulnerability dataset quality, label error detection robustness, automated vulnerability repair, and figure-of-speech-aware deception detection — built on a Ph.D. in deep RL for combinatorial optimization from Penn State's Applied AI Lab.

Amutheezan Sivagnanam is a Postdoctoral Fellow at the University of Houston. He works on software vulnerability dataset quality, label error detection robustness, automated software vulnerability repair, and figure-of-speech-aware deception detection.
He earned his Ph.D. in Informatics from The Pennsylvania State University in Summer 2025, where he was a member of the Applied Artificial Intelligence Lab advised by Dr. Aron Laszka. His doctoral research focused on applying artificial intelligence to solve combinatorial optimization problems in transportation domains. He also earned a Master’s degree in Computer Science from the University of Houston in Summer 2022, and completed his Bachelor’s degree in Computer Science and Engineering at the University of Moratuwa, Sri Lanka, in 2017.
Before his doctoral studies, he gained industry experience as a Software Engineering Intern at WSO2 Lanka (Pvt) Ltd, working with the Data Analytics Team from July to December 2016. He later worked as a Software Engineer at LSEG Technology (formerly MillenniumIT Software (Pvt) Ltd), contributing to the Post-Trade Team from January 2018 to July 2019.
Curating and evaluating the data quality of software vulnerability detection datasets.
How robust label error detection tools are to near-duplicate and tampered samples.
Automated repair of software vulnerabilities.
Detecting deceptive intent with methods that account for figures of speech.
Deep RL for sequential decision-making, including actor-critic agents with transformers for variable-dimensional, large discrete action spaces.
Problem formulations and mathematical models for large-scale routing, scheduling, and resource-allocation problems, paired with learning-guided search.
Hierarchical, coordinated multi-agent approaches, such as repositioning emergency responders across regions to reduce response times.
Real-time decision-making for physical infrastructure, including on-demand transit fleets, ambulance stationing, and dynamic vehicle routing.
University of Houston, Department of Computer Science
The Pennsylvania State University
Graduate Research Assistant, Applied Artificial Intelligence Lab, advised by Dr. Aron Laszka. Deep reinforcement learning for combinatorial optimization in transportation.
University of Houston
Graduate Research Assistant, Resilient Networks and Systems Lab, advised by Dr. Aron Laszka.
LSEG Technology, Post-Trade Team
Developed and tested application software for post-trade systems using Java, Python, and C++.
WSO2 Lanka (Pvt) Ltd, Data Analytics Team
Built an HL7 monitoring and disease-outbreak alerting solution on WSO2 ESB, DAS, and BAM.