research

Security of learning systems and software systems, and explainable fuzzy inference.

Kennesaw State University logo

Backdoor Attacks in Large Language Model Reasoning

Kennesaw State University, USA · Supervisor: Dr. Honghui Xu · July 2026 – Present

Investigating how the reasoning process of large language models can be compromised, combining chain-of-thought analysis with trigger-injection techniques.

University of Maryland - Baltimore County logo

Security Analysis of Federated Learning and Split Learning

University of Maryland - Baltimore County, USA · Supervisor: Dr. Md Tariqul Islam · January 2026 – Present

Systematizing whether attacks and defenses established for federated learning transfer to split learning, and where the architectural split invalidates the assumptions each relies on (SoK manuscript in preparation for IEEE S&P 2027).

Samsung R&D Institute Bangladesh logo

Improving Security of Systems Integrated in Ultrasound Devices

Samsung R&D Institute Bangladesh · August 2026 – Present

Developing a contract-based method to automatically scope security re-verification to only the modules an update could affect, instead of retesting the entire ultrasound software stack.

University of Dhaka logo

Interval Type-2 Fuzzy Sets: Behavior and Performance

University of Dhaka · Supervisor: Dr. Shaily Kabir · March 2023 – January 2024

Designed the Interval Creation Approach (ICA), a method for constructing interval type-2 fuzzy sets from type-1 fuzzy set, leading to a first-author paper at FUZZ-IEEE 2024, as a part of IEEE WCCI 2024.