5 papers
Assessing GPTZero's Accuracy in Identifying AI vs. Human-Written Essays
Selin Dik, Osman Erdem, Mehmet Dik
As the use of AI tools by students has become more prevalent, instructors have started using AI detection tools like GPTZero and QuillBot to detect AI written text. However, the re…
Lipschitz Bounds for Persistent Laplacian Eigenvalues under One-Simplex Insertions
Le Vu Anh, Mehmet Dik, Nguyen Viet Anh
Persistent Laplacians are matrix operators that track how the shape and structure of data transform across scales and are popularly adopted in biology, physics, and machine learnin…
MicroRicci: A Greedy and Local Ricci Flow Solver for Self-Tuning Mesh Smoothing
Le Vu Anh, Nguyen Viet Anh, Mehmet Dik +1
Real-time mesh smoothing at scale remains a formidable challenge: classical Ricci-flow solvers demand costly global updates, while greedy heuristics suffer from slow convergence or…
RePCS: Diagnosing Data Memorization in LLM-Powered Retrieval-Augmented Generation
Le Vu Anh, Nguyen Viet Anh, Mehmet Dik +1
Retrieval-augmented generation (RAG) has become a common strategy for updating large language model (LLM) responses with current, external information. However, models may still re…
Spectral Contraction of Boundary-Weighted Filters on delta-Hyperbolic Graphs
Le Vu Anh, Mehmet Dik, Nguyen Viet Anh
Hierarchical graphs often exhibit tree-like branching patterns, a structural property that challenges the design of traditional graph filters. We introduce a boundary-weighted oper…