04:00
2026-09-24
arxiv.org
machine-learning
QUARTET: Quad-branch cross-Attention and Random-walk Traces for Enhancing Transformers on Relational Graphs
Researchers introduced QUARTET, a graph transformer architecture that combines a Causal Random Walk (CRW) sampler built on recency-truncated Personalized PageRank (PPR) with a quad-branch cross-attent…