Inferring the Parametric Weight of a Bicriteria Routing Model from Trajectories
Johannes Oehrlein, Benjamin Niedermann, Jan‐Henrik Haunert · 2017
Finding a shortest path between two nodes in a graph is a well-studied problem whose applicability in practice crucially relies on the choice of the applied cost function. Especially, for the key application of vehicle routing the cost function may consist of more than one optimization criterion (e.g., distance, travel time, etc.). Finding a good balance between these criteria is a challenging and essential task. We present an approach that learns that balance from existing GPS-tracks. The core of our approach is to find a balance factor α for a given set of GPS-tracks such that the tracks can be decomposed into a minimum number of optimal paths with respect to α.