10. The system of claim 9 , comprising: a segmentation component configured to separate GPS data into the one or more segments of positioning data; and a feature extraction component configured to extract the one or more features for the one or more segments of positioning data.
10. The system of claim 9 , comprising: a segmentation component configured to separate GPS data into the one or more segments of positioning data; and a feature extraction component configured to extract the one or more features for the one or more segments of positioning data. 15. The system of claim 10 , the segmentation component configured to: differentiate between walk segments and non-walk segments; distinguish between certain segments and uncertain segments based on a length of respective segments; and merge uncertain segments into a non-walk segment.