Track Similarity
Requires measuring distance between two trajectories for possible
"alignments" and choosing minimum.
Trajectory distance was tested by:
- creating 80 widely-varied trajectories
- choosing 10 of these as "queries"
- asking 10 users to give similarity for 79 against each query
- measuring distances using distance function
- comparing measured distance rank with user-assigned distance rank
Found: reasonable precision/recall performance for threshold 70%
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