Observed arrival · 2026-09-13
Srijeet Qazi’s GPS-Free Search for a Destination
An electrical-engineering researcher’s portfolio explains systems that infer where a person or vehicle went from travel time, direction, landmarks, and map data.
Field notes
The portfolio separates vehicle and pedestrian localization projects. Its vehicle workflow builds a reachable road network from travel time, applies directional constraints, and produces a ranked likelihood map; the page says seven parameters were tuned with Bayesian optimization. Reported evaluation includes 79.5% intersection-over-union and retention of the true destination in 94 of 94 trials. The browser demo is illustrative rather than experimental: its trip, roads, percentages, and destination are explicitly fictional.
Observed signals
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