Day 3 of Mobisys 2005

It's a short day for Mobisys, this is the last day, so it's only a morning session. There's only just 2 sessions, one on Location (there) and More Power to You. What's interesting is the Accuracy Characterization for Metropolitan-scale Wi-Fi Localization from Intel Research which is their PlaceLab project. They basically determine location based on gathering traces of signal strength using Wi-Fi and then using Bayesian algorithms for inference on topological maps. In this way, they just use commodity Wi-Fi cards to measure the signal strength. They don't obtain the fine granularity that you would get with GPS systems, but for certain applications, there is no need for such fine granularity, just knowing what room you are in, not the coordinates is quite enough.