CRAWDAD metadata: hope/nh_amd (v. 2010-07-18)

RFID tracking data was collected at The Next HOPE (Hackers On Planet Earth) conference that was held July 16-18, 2010. Conference attendees received active RFID badges that uniquely identified and tracked them across the conference space.
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Note: This metadata was prepared by the CRAWDAD team and verified by the data set (or tool) authors. We have made every effort to ensure its accuracy, but urge all users to consider the metadata and data carefully and be sure that their use in research is consistent with the nature and limitations of the data. We welcome any corrections. This metadata was prepared based on the following reference(s):


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[Dataset] hope/nh_amd (v. 2010-07-18)

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version v. 2010-07-18
changes
the initial version
bibtex
@MISC{hope-nh_amd-2010-07-18,
  author = {Travis Goodspeed and Nathaniel Filardo},
  title = {{CRAWDAD} data set hope/nh_amd (v. 2010-07-18)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/hope/nh_amd},
  month = jul,  
  year = 2010
}
					
metadata last modified2011-03-12
summary
RFID tracking data was collected at The Next HOPE (Hackers On Planet Earth) 
conference that was held July 16-18, 2010. Conference attendees received active
RFID badges that uniquely identified and tracked them across the conference 
space.
release date2010-07-18
measurement start 2010-07-16
measurement end 2010-07-18
authorsTravis Goodspeed
Nathaniel Filardo
web site http://www.crawdad.org/hope/nh_amd
wiki go to the wiki page for this data set
keywordtcpdump, location, packet trace, sensor network, signal strength, RFID
measurement purposesUser Mobility Characterization
Positioning Systems
Educational Use
Location-aware Computing
Human Behavior Modeling
Energy-efficient Wireless Network
Network Security
Localization
Opportunistic Connectivity
network typesensor network
network typeRFID
environment
Hotel Pennsylvania in Manhattan, New York City, the site of the biannual 
"Hackers on Planet Earth" (HOPE) conference.
network
This record comes from three days of the conference, by TCPDump from OpenBeacon
PoE receivers.  Each UDP packet represents one radio packet, as forwarded from 
the receiver to an aggregation server.  Positions may be inferred from the 
packet error rate at a given receiver, as well as the broadcast signal strength
which is included as a field of the packet.
collection
Data was collected using tcpdump on an aggregation server. The packets exist in
their raw state, with no preprocessing of any kind.
sanitization
The only unique information contained within a badge is its serial number,
which was optionally correlated with an attendee's name or handle by a social 
networking site. The database of the social networking site has not been 
included in this database, and it is believed that no private information was 
included. Additionally, attendees received badges separately from batteries, 
being told to insert the battery only if the collection of data was not a 
problem.
limitation
The packet capture is known to be somewhat damaged -- in particular, the last
bzip2 block is corrupt ("file ends unexpectedly") and the contained pcap stream
therefore does not parse correctly ("pcap_loop: bogus savefile header").  The
aggregation machine was rather violently brought offline (somebody tripped over
its power cable during cleanup; happens to the best of us). We thought it 
better to just release everything as we got it than try any processing to clean
it up.
hole
As attendees were provided with development kits and source code to the badges,
some enterprising individuals took it upon themselves to reprogram their badges
to impersonate others.  The doppelganger badges can be identified by 0xFFFF 
replacing the final field of the packet, which contains calibration data that 
was destroyed during badge reprogramming.
tracesets included hope/nh_amd/tcpdump (v. 2010-07-18)

[Traceset] hope/nh_amd/tcpdump (v. 2010-07-18)

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version v. 2010-07-18
changes
the initial version.
bibtex
@MISC{hope-nh_amd-tcpdump-2010-07-18,
  author = {Travis Goodspeed and Nathaniel Filardo},
  title = {{CRAWDAD} trace set hope/nh_amd/tcpdump (v. 2010-07-18)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/hope/nh_amd/tcpdump},
  month = jul,  
  year = 2010
}
					
metadata last modified2011-02-22
summary
RFID tracking data was collected at The Next HOPE (Hackers On Planet Earth) 
conference that was held July 16-18, 2010. Conference attendees received active
RFID badges that uniquely identified and tracked them across the conference 
space.
release date2010-07-18
measurement start 2010-07-16
measurement end 2010-07-18
measurement purposesUser Mobility Characterization
Positioning Systems
Educational Use
Location-aware Computing
Human Behavior Modeling
Energy-efficient Wireless Network
Network Security
Localization
Opportunistic Connectivity
methodology
We collected three days worth of packets sent by conference attendees badges to
the aggregator.
download urlDownload (3.1GB directory) from US UK AU
parent datahope/nh_amd (v. 2010-07-18)
traces included hope/nh_amd/tcpdump/bz2 (v. 2010-07-18)

[Trace] hope/nh_amd/tcpdump/bz2 (v. 2010-07-18)

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version v. 2010-07-18
changes
the initial version
bibtex
@MISC{hope-nh_amd-tcpdump-bz2-2010-07-18,
  author = {Travis Goodspeed and Nathaniel Filardo},
  title = {{CRAWDAD} trace hope/nh_amd/tcpdump/bz2 (v. 2010-07-18)}, 
  howpublished = {Downloaded from http://crawdad.cs.dartmouth.edu/hope/nh_amd/tcpdump/bz2},
  month = jul,  
  year = 2010
}
					
metadata last modified2011-02-22
summary
This is the working directory of the OpenAMD project's estimator from The Next
Hope, as well as the complete packet dump for obtained during our collection.

The collection starts at Friday 12:23:34.714999 and ends at Sunday
16:04:53.403616.  It contains, all told, 200123338 packets.  Almost all of
these are well-formed packets from TNH badges; there are known to be some TLH
badges in there (which the localizer knows how to decrypt) and maybe some
surprises.  Just for clarity, the aggregator was only ever on the private VLAN
for the readers, so there should be no attendee data (i.e. only attendee
metadata ^^) in this file.
derivedfalse
release date2010-07-18
measurement start 2010-07-16
measurement end 2010-07-18
configuration
The conference badges were sending packets to the aggregation server.
format
The collection contains the following files.

capture**.bz2 : The packet archive itself, split into 33 pcap files and bzip2'd.
README        : Description of the collection and links to relevant tools.
HOWTO_RUN_ME  : The commands used to bring up the estimator and the Cassandra 
                bridge.
areaspt.txt   : A Space Partition Tree file mapping positions onto area name.
               See localizer/spaceparttree.h for format documentation.
readers.txt   : A map from reader IPv4 address to its position in space.
               Coordinates, left to right, are X and Y in meters and Z in 
               floors. The origin is the corner with the hammock space. Y 
               increases towards the operations center. The coordinate system 
               is left-handed.
parent datahope/nh_amd/tcpdump (v. 2010-07-18)

[Author] Travis Goodspeed

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emailtravis@radiantmachines.com
web site http://travisgoodspeed.com
related data/toolshope/nh_amd (v. 2010-07-18)

[Author] Nathaniel Filardo

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emailnwf@cs.jhu.edu
institutionJohns Hopkins University
departmentDepartment of Computer Science
positionPh.D. student
addressCenter for Language and Speech Processing Computer Science Department Whiting School of Engineering Johns Hopkins University 3400 North Charles Street Baltimore, MD 21218
phone(513)-652-3052
web site http://www.cs.jhu.edu/~nwf/
related data/toolshope/nh_amd (v. 2010-07-18)