Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/84340
Title: Understanding Urban interactions from bluetooth phone contact traces
Authors: Natarajan, A. 
Motani, M. 
Srinivasan, V. 
Issue Date: 2007
Source: Natarajan, A.,Motani, M.,Srinivasan, V. (2007). Understanding Urban interactions from bluetooth phone contact traces. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 4427 LNCS : 115-124. ScholarBank@NUS Repository.
Abstract: The increasing sophistication of mobile devices has enabled several mobile social software applications, which are based on opportunistic exchange of data amongst devices in proximity of each other. Examples include Delay Tolerant Networking (DTN) and PeopleNet. In this context, understanding user interactions is essential to designing algorithms which are efficient and enhance the user experience. In our experiment, users were handed Bluetooth enabled phones and asked to carry them all the time to log information about other devices in their proximity. Data was logged over several months, with over 350,000 contacts logged and over 10,000 unique devices discovered in this period.1 This paper analyzes this data by charactering the distributions of metrics such as contact time and inter-pair-contact time, and introducing several other important metrics useful for understanding user interactions. We find that most metrics follow a power law, except for inter-pair-contact time. We also look for patterns in user interactions, with the hope that these can be exploited for better algorithm design. © Springer-Verlag Berlin Heidelberg 2007.
Source Title: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
URI: http://scholarbank.nus.edu.sg/handle/10635/84340
ISBN: 9783540716167
ISSN: 03029743
Appears in Collections:Staff Publications

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