No need to war-drive: unsupervised indoor localization

@inproceedings{Wang2012NoNT,
  title={No need to war-drive: unsupervised indoor localization},
  author={Junyu Wang and Souvik Sen and Ahmed Elgohary and Moustafa Farid and Moustafa Youssef and Romit Roy Choudhury},
  booktitle={MobiSys},
  year={2012}
}
We propose UnLoc, an unsupervised indoor localization scheme that bypasses the need for war-driving. Our key observation is that certain locations in an indoor environment present identifiable signatures on one or more sensing dimensions. An elevator, for instance, imposes a distinct pattern on a smartphone's accelerometer; a corridor-corner may overhear a unique set of WiFi access points; a specific spot may experience an unusual magnetic fluctuation. We hypothesize that these kind of… CONTINUE READING
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Pinpoint: An asynchronous time-based location determination system

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