9. A system comprising: an inference component configured to determine a transportation mode for one or more segments of positioning data based at least in part on one or more features of the one or more segments.
9. A system comprising: an inference component configured to determine a transportation mode for one or more segments of positioning data based at least in part on one or more features of the one or more segments. 13. The system of claim 9 , the one or more features comprising at least one of segment length, velocity data or acceleration data.