arXiv AI

Online design of dynamic networks

arXiv AI
Oct 12

Looking Ahead and Back: Anticipatory Generative Modeling for Road-Network Trajectories

The paper introduces Anticipatory Generative Modeling, a new graph-constrained approach for generating road‑network trajectories that focuses on behavior modeling rather than simple location simulation. It presents Foresight, a probabilistic model that iteratively anticipates, selects, updates, and re‑anticipates future transitions to produce realistic routes that stay on the road network. Experiments show that Foresight outperforms existing state‑of‑the‑art generative methods.

By Zhenhao Huang, Li Sun, Philip S. Yu
arXiv AI
Aug 19

HLSR: Hybrid Live Forecast Selective Dynamic Vehicle Rerouting for Real-Time Congestion Avoidance

HLSR is a selective hybrid live‑forecast vehicle rerouting framework designed to reduce urban traffic congestion. It combines live edge speeds with short‑horizon forecasts, using dual‑threshold congestion detection, calibrated upstream selection, and driver‑tailored travel‑time prediction. The method introduces approaching‑vehicle expansion, travel‑time‑weighted k‑shortest‑path generation, and a horizon‑dependent hybrid live‑forecast segment speed for multi‑cost route allocation.

By Xiao Wang, Shun Ren Yang, Hui Nien Hung
arXiv AI
Sep 18

Customizable and Jointly Optimized Route Planning: A Deep Architecture Enabling Differentiable Shortest-Path Search

The paper introduces a deep architecture that jointly optimizes cost functions and a route-ranking model to accommodate diverse user preferences in route planning. It first generates a complete set of Pareto‑optimal routes using a multi‑objective Dijkstra algorithm, then employs a neural network that emulates shortest‑path search and ranking in an end‑to‑end differentiable framework. A novel loss function treats route preference as a constrained optimization problem, allowing a single objective to be optimized while other attributes remain constrained, and experiments on real‑world data show significant improvements over existing methods.

By Rui Zhao, Chao Chen, Longfei Xu, Chenguang Ji, Hengbin Cui, Kaikui Liu, Xiaolong Li