Differences in smartphone usage: Validating, evaluating, and predicting mobile user intimacy

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• 作者：Mattia Gustarini^a ; ^{Mattia.Gustarini@unige.ch} ; Marcello Paolo Scipioni^b ; ^{marcello.paolo.scipioni@usi.ch} ; Marios Fanourakis^a ; ^{Marios.Fanourakis@unige.ch} ; Katarzyna Wac^a ; ^c ; ^wac@di.ku.dk
• 关键词：User smartphone engagement ; User context ; User location ; People around user ; RPC ranking classification
• 刊名：Pervasive and Mobile Computing
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：33
• 期：Complete
• 页码：50-72
• 全文大小：1934 K
• 卷排序：33

文摘

We analyze the users’ intimacy to investigate the differences in smartphone usage, considering the user’s location and number and kind of people physically around the user. With a first user study we (1) validate the intimacy concept, (2) evaluate its correlation to smartphone usage features and (3) we computationally model it. Shorter, more frequent, and less engaging interactions take place when intimacy is lower, while longer, less frequent, and engaging interactions when intimacy is higher. With a second user study, we investigate the intimacy predictability in practice. Location–time features are predictive for the intimacy, and other smartphone-based features can improve the intimacy prediction accuracy.