Our paper on understanding mobile information supply has been accepted for publication at NordiCHI2018. We investigate mobile information supply by assessing smartphones as information channels and apply concepts of information theory for estimating the amount of information that they supply. The paper results from the master thesis of David Petersen.

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Abstract: Smartphones became powerful tools for interacting with information anytime and anyplace. This paper investigates mobile information supply by assessing smartphones as information channels. We apply concepts of information theory for estimating the amount of information that smartphones supply. We contribute a measure of mobile information supply and describe a large-scale study analyzing data from more than 790 participants. Our main findings are that our participants’ smartphones supply about 13 bytes of information per second and 1143 bytes per session. Further, within device sessions mobile information supply peaks at the beginning and the end. Our data also shows differences between sessions regarding the ratio of supplying old content vs. new content.

David Petersen, Matthias Böhmer: Understanding Mobile Information Supply: Studying the Amount of Textual Information Smartphones Provide. In: Proceedings of NordiCHI 2018, ACM, Forthcoming.

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