4 papers
Investigating Gender Bias in Touch Biometrics
Joshua Lee, Ben Khant, Rajesh Kumar
Behavioral biometrics offer a promising approach for continuous authentication, but their fairness across demographic groups remains largely unexplored. This paper investigates gen…
How Well Do LLMs Imitate Human Writing Style?
Rebira Jemama, Rajesh Kumar
Large language models (LLMs) can generate fluent text, but their ability to replicate the distinctive style of a specific human author remains unclear. We present a fast, training-…
Active Authentication via Korean Keystrokes Under Varying LLM Assistance and Cognitive Contexts
Dong Hyun Roh, Rajesh Kumar
Keystroke dynamics is a promising modality for active user authentication, but its effectiveness under varying LLM-assisted typing and cognitive conditions remains understudied. Us…
LLM-Assisted Cheating Detection in Korean Language via Keystrokes
Dong Hyun Roh, Rajesh Kumar, An Ngo
This paper presents a keystroke-based framework for detecting LLM-assisted cheating in Korean, addressing key gaps in prior research regarding language coverage, cognitive context,…