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Paper Abstract and Keywords
Presentation 2015-03-03 09:30
CoHear: Co-location Detection of Mobile Devices using Ambient Sound
Hiroyuki Satoh, Kei Iwamoto, Makoto Suzuki, Hiroyuki Morikawa (Tokyo Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The co-location detection of mobile devices is valuable for various
applications such as ad-hoc information sharing and analysis of human
communication. Ideally, a co-location detection solution should be easy to deploy, accurate, energy efficient, scalable, and privacy・security protective. In this paper, tackling these criteria, we show the system called CoHear which uses ambient sound for co-location detection of mobile devices. CoHear extracts the ambient sound feature considering microphone's frequency response characteristic and stationaly sound. Experimental evaluation using 5 different model devices shows that CoHear discriminates 8 places with 0.86 F-measure. We also show experimental results about the energy consumption and the number of devices which can be accommodated.
Keyword (in Japanese) (See Japanese page) 
(in English) Ambient Sound / Mobile Device / Co-location Detection / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 479, MoNA2014-97, pp. 145-150, March 2015.
Paper # MoNA2014-97 
Date of Issue 2015-02-23 (MoNA) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee MoNA ASN IPSJ-MBL IPSJ-UBI  
Conference Date 2015-03-02 - 2015-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Shibaura Institute of Technology(Toyosu Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Ad hock Network, Field Sensing, Mobile Application, Ubiquitous Service, Ubiquitous System, etc. 
Paper Information
Registration To MoNA 
Conference Code 2015-03-MoNA-ASN-MBL-UBI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) CoHear: Co-location Detection of Mobile Devices using Ambient Sound 
Sub Title (in English)  
Keyword(1) Ambient Sound  
Keyword(2) Mobile Device  
Keyword(3) Co-location Detection  
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1st Author's Name Hiroyuki Satoh  
1st Author's Affiliation The University of Tokyo (Tokyo Univ.)
2nd Author's Name Kei Iwamoto  
2nd Author's Affiliation The University of Tokyo (Tokyo Univ.)
3rd Author's Name Makoto Suzuki  
3rd Author's Affiliation The University of Tokyo (Tokyo Univ.)
4th Author's Name Hiroyuki Morikawa  
4th Author's Affiliation The University of Tokyo (Tokyo Univ.)
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Speaker
Date Time 2015-03-03 09:30:00 
Presentation Time 25 
Registration for MoNA 
Paper # IEICE-MoNA2014-97 
Volume (vol) IEICE-114 
Number (no) no.479 
Page pp.145-150 
#Pages IEICE-6 
Date of Issue IEICE-MoNA-2015-02-23 


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