The uiuc/uim dataset (v. 2012-01-24)
Dataset of Bluetooth and Wi-Fi traces collected from Android phone users at University of Illinois.
Contributed by Klara Nahrstedt, Long Vu.
This is the dataset of MACs of Bluetooth and Wi-Fi access points collected by the University of Illinois Movement (UIM) framework using Google Android phones.
details of the uiuc/uim dataset (v. 2012-01-24)
- last modified
-
2012-01-24
- reason for most recent change
-
the initial version
- release date
-
2012-01-24
- date/time of measurement start
-
2010-03-01
- date/time of measurement end
-
2010-03-20
- website
-
www.crawdad.org/uiuc/uim
- network type
-
802.11 infrastructure
- network type
-
bluetooth
- collection environment
-
We release the set of Bluetooth and Wifi traces collected by 28 Google Android phone users for 3 weeks in March 2010. These people are staff, faculties, grads, and undergrads at University of Illinois.
- network configuration
-
Each UIM experiment phone encompasses a Bluetooth scanner and a Wi-Fi scanner capturing both Bluetooth MAC addresses and Wi-Fi access point MAC addresses in proximity of the phone.
- data collection methodology
-
The Bluetooth scanner periodically (e.g. every 60 seconds) scans the Bluetooth-enabled devices in the phone's proximity. The Wi-Fi scanner periodically (e.g. every 30 minutes) scans the Wi-Fi access points in the phone's proximity.
- sanitization
-
Detected MACs are hashed with SHA-1.
- limitation
-
You will see that the Bluetooth and Wi-Fi traces may be collected with different frequencies by different users. This is because we tune the frequency when doing trace collection. Higher frequency consumes a lot of energy, and the phone can not last more than 1.5 days. Thus, we have to lower the frequency. However, we can not contact all 28 participants at the same time to tune all the scanning frequencies. Some users are willing to charge their experiment phones a couple of times per day, then they accept higher scaning frequency. Others may not, then we have to lower the frequency for them.
- disruptions to data collection
-
The collected traces may have corrupted and broken info since the phones may not work reliably at all the times. This is the nature of trace collection, and we can not avoid it. Sometimes the user restarts the phone, and the trace gets broken.
- error
-
The timestamps, both in filenames and inside the files, frequently don't match the actual time when the record was made.
This dataset contains the following 2 tracesets:
bluetooth
Traceset of Bluetooth traces collected from Android phone users at University of Illinois.
quick access to download the traceset
- download the uim_exp1_release.tar.gz (from the uiuc/uim/bluetooth trace) file
- from a CRAWDAD mirror: US
UK
size="5.4MB" type="gz" md5="b193038ce818c05fd4e9aa03fcd3e636"
wifi
Traceset of Wi-Fi traces collected from Android phone users at University of Illinois.
quick access to download the traceset
- download the uim_exp1_release.tar.gz (from the uiuc/uim/wifi trace) file
- from a CRAWDAD mirror: US
UK
size="5.4MB" type="gz" md5="b193038ce818c05fd4e9aa03fcd3e636"
2 contributors 
- Klara Nahrstedt
klara@illinois.edu
University of Illinois
Computer Science
Professor
Thomas M. Siebel Center for Computer Science, University of Illinois, MC258, 201 N. Goodwin Avenue, Urbana, IL 61801-2302
217-244-6624
217-244-6869
wiki.engr.illinois.edu/display/monet/Klara+Nahrstedt
- Long Vu
longvu2.uiuc@gmail.com
University of Illinois
Computer Science
Ph.D.
Thomas M. Siebel Center for Computer Science, University of Illinois, MC258, 201 N. Goodwin Avenue, Urbana, IL 61801-2302
illinois.academia.edu/LongVu/About
how to cite this dataset
When writing a paper that uses CRAWDAD datasets, we would appreciate it if you could cite both the authors of the dataset and CRAWDAD itself, and identify the exact dataset using the appropriate version number. For this dataset, this citation would look like:
Klara Nahrstedt, Long Vu, CRAWDAD dataset uiuc/uim (v. 2012‑01‑24), downloaded from https://crawdad.org/uiuc/uim/20120124, https://doi.org/10.15783/C7HG6D, Jan 2012.
We also provide bibliographic information in common citation formats below:
@misc{uiuc-uim-20120124,
author = {Klara Nahrstedt and Long Vu},
title = {{CRAWDAD} dataset uiuc/uim (v. 2012-01-24)},
howpublished = {Downloaded from \url{https://crawdad.org/uiuc/uim/20120124}},
doi = {10.15783/C7HG6D},
month = jan,
year = 2012
}
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TY - DATA
TI - CRAWDAD dataset uiuc/uim (v. 2012-01-24)
UR - https://crawdad.org/uiuc/uim/20120124
PY - 2012/01/24/
AU - Klara Nahrstedt
AU - Long Vu
DO - 10.15783/C7HG6D
ER -
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