3 papers
cs.LG2025
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…
cs.LG2025
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…
math.MG2025
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…