@inproceedings{CIKM-2011-OkamotoWNC,
	author        = "Masayuki Okamoto and Nayuko Watanabe and Shinichi Nagano and Kenta Cho",
	booktitle     = "{Proceedings of the 20th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2063576.2064025",
	isbn          = "978-1-4503-0717-8",
	pages         = "2581--2584",
	publisher     = "{ACM}",
	title         = "{Annotating knowledge work lifelog: term extraction from sensor and operation history}",
	year          = 2011,
}