Nonnegative Matrix Factorization applied to reordered pixels of single images based on patches to achieve structured nonnegative dictionaries. - Richard M. Charles; Kye M. Taylor; James H. Curry (CoRR, 2015)

Mitigating Trojanized Prompt Chains in Educational LLM Use Cases: Experimental Findings and Detection Tool Design. - Richard M. Charles; James H. Curry; Richard B. Charles (CoRR, 2025)