Research framework

From Observations to Mobility Representations

01 · Observe

Large-Scale Mobility Data

02 · Represent
Sparse → Structure

PM-Tree

Priority-guided hierarchical trajectory representation

3% observations → 96% structural recovery
Noisy GPS → Road Path

Map Matching

Mobility data to road-network representation

Sup-HMM · uncertainty-aware inference
Trips → Planning Network

Translation

Mobility data to planning-network representation

Observed paths → model-ready demand
03 · Understand

Mobility Intelligence

Reveal how people move, reach opportunities, and organize activities.

ODAccessBehavior
04 · Inform

Planning Insight

Turn empirical mobility evidence into more equitable and reliable planning decisions.

AccessibilityEquityBias