arXiv AI

Spatiotemporal Graph Transformer for Traffic Intelligence in Edge Computing

arXiv:2608. 04075v1 Announce Type: cross Abstract: Accurate traffic forecasting is essential for proactive resource management in edge computing, where service demand evolves dynamically across both space and time.

arXiv AI
Sep 18

FedeRICo: Federated Region-Influenced Coupling for Traffic Flow Prediction

FedeRICo is a federated traffic forecasting framework that addresses heterogeneity across client sensor subgraphs by combining gradient-level collaboration with boundary-aware residual communication. It uses a dual-branch architecture: a globally guided branch for transferable forecasting structure and a private residual branch that preserves client-specific corrections and incorporates boundary residual signals. Experiments on four real-world traffic benchmarks show that FedeRICo outperforms state‑of‑the‑art federated spatial‑temporal baselines while keeping training runtime competitive.

By Fermin Orozco, Man Luo, Johan Wahlstr\"om
arXiv AI
Sep 18

Scene-Conditioned Relation Routing for urban cellular activity forecasting

The paper introduces SCRR-Net, a scene-conditioned spatial relation routing framework designed to forecast urban cellular activity by jointly modeling heterogeneous spatiotemporal signals such as SMS usage, mobile network traffic, and call activity. SCRR-Net integrates a context encoder, a spatial graph expert routing module, a temporal Transformer encoder, and a task knowledge routing module, allowing urban contextual information to control spatial dependency selection and cross-task knowledge transfer. Experiments on Milano and Trento datasets show that SCRR-Net consistently outperforms competing methods across all three forecasting tasks while offering interpretable routing behaviors.

By Qingzhong Li, Jingye Lin, Hui Ma, Yajun Zhang, Xinjun Pei, Ming Yan, Fei Xing
arXiv AI
Sep 15

STHMoE: Hypergraph-Enhanced Heterogeneous Dependency Coordination for LLM-Based Urban Traffic Data Forecasting

STHMoE is a Spatio‑Temporal Hypergraph‑Enhanced Mixture of Experts framework designed for urban traffic forecasting. It separates traffic dynamics into frequency‑, time‑, spatial‑, and higher‑order representations, each handled by a prompt‑guided expert built on a partially frozen large language model. The higher‑order expert uses an adaptive hypergraph module to learn evolving spatial structures, while an entropy‑aware router balances expert usage and fuses outputs, achieving competitive results on ten real‑world traffic benchmarks.

By Jiawen Chen, Qi Shao, Yongjian Chang, Mingtong Zhou, Duxin Chen, Wenwu Yu
arXiv AI
Jun 12

Lightweight and Interpretable Transformer via Mixed Graph Algorithm Unrolling for Traffic Forecast

arXiv:2505. 13102v4 Announce Type: replace-cross Abstract: Unlike conventional "black-box" transformers with classical self-attention mechanism, we build a lightweight and interpretable transformer-like neural net by unrolling a mixed-graph-based optimization algorithm to forecast traffic with spatial and temporal dimensions.

By Ji Qi, Tam Thuc Do, Mingxiao Liu, Zhuoshi Pan, Yuzhe Li, Gene Cheung, H. Vicky Zhao