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Welcome to the public review site of papers appearing in MobiSys 2012. Here you can find the public review written by a PC member for each paper and the authors' rebuttal to it. You can comment on any of them or add your own opinion. Finally you can vote to "like" or "dislike" a paper by clicking the up or down arrows next to its title.

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[–]ConferenceQA 0 points1 point ago

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Q: (Kaist) Is your system energy efficient compared to GPS since you need to do a lot of señor data processing?

A: GPS consumes a lot of energy energy (battery lasts only few hours). In our case we do only accelerometer and fft processing, so much less energy is needed doubling the phone's life time.

[–]ConferenceQA 0 points1 point ago

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Q: (MSR) In some places there are already buses with GPS and providing real time info to users. Can you comment on the utility of your system?

A: GPS might incur cost, and even if buses are equipped with GPS, the companies running the bus system might not want to provide GPS traces to users.

[–]ConferenceQA 0 points1 point ago

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Q: (MIT) Do you tell users in advance when to get to the bus stop in time to catch the bus?

A: We are working on it.

[–]ConferenceQA 0 points1 point ago

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Q: (MSRA) Bus is noisy, can it happen that the system isn't able to detect beeps?

A: The results are robust to noise according to our experiments.

[–]ConferenceQA 0 points1 point ago

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Q: (...) Do the phones need to keep accelerometer and mic always on?

A: The mic is always on and rump up accelerometer sampling rate only when beep detected.

[–]ConferenceQA 0 points1 point ago

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Q: (...) How much does your data capture the variability of traffic at different times of the day or days of the week?

A: There is variability, we are working on figuring out how much data is needed in order to make the application more accurate.