@inproceedings { 1520615,
	title = {Tracking behavior in persuasive apps: is sensor-based detection always better than user self-reporting?},
	booktitle = {CHI EA {\textquoteright}09: Proceedings of the 27th international conference extended abstracts on Human factors in computing systems},
	year = {2009},
	pages = {4045{\textendash}4050},
	publisher = {ACM},
	organization = {ACM},
	address = {New York, NY, USA},
	abstract = {This paper aims to discuss the roles for the two types of tracking user behavior. Considering these two types of tracking, sensor based recognition has a great advantage when sensing human activity, but it is not always adequate when tracking in the real world. In this paper, we compare the benefits and drawbacks of sensor-based tracking versus self-reported data in persuasive applications called EcoIsland.},
	ISBN = {978-1-60558-247-4},
	author = {Miyuki Shiraishi and Yasuyuki Washio and Chihiro Takayama and Vili Lehdonvirta and Hiroaki Kimura and Tatsuo Nakajima}
}