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For example, the daily smartphone usage time differs by orders of magnitude between users. They observed also that smartphones are used differently in different end user contexts. For example, some applications are clearly more context sensitive than others. The results imply that mobile services and applications need to adapt to user behavior in order to be personalized enough, and that context awareness can indeed be a worthwhile step towards this.<\/p>","DOI":"10.4018\/jhcr.2013010102","type":"journal-article","created":{"date-parts":[[2013,4,9]],"date-time":"2013-04-09T16:04:11Z","timestamp":1365523451000},"page":"15-36","source":"Crossref","is-referenced-by-count":8,"title":["Characterizing Smartphone Usage"],"prefix":"10.4018","volume":"4","author":[{"given":"Tapio","family":"Soikkeli","sequence":"first","affiliation":[{"name":"Department of Communications and Networking, Aalto University, Aalto, Finland"}]},{"given":"Juuso","family":"Karikoski","sequence":"additional","affiliation":[{"name":"Department of Communications and Networking, Aalto University, Aalto, Finland"}]},{"given":"Heikki","family":"H\u00e4mm\u00e4inen","sequence":"additional","affiliation":[{"name":"Department of Communications and Networking, Aalto University, Aalto, Finland"}]}],"member":"2432","reference":[{"key":"jhcr.2013010102-0","unstructured":"Aad, I., & Niemi, V. 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