@inproceedings{ICPR-2012-WuHWT,
	author        = "Zifeng Wu and Yongzhen Huang and Liang Wang and Tieniu Tan",
	booktitle     = "{Proceedings of the 21st International Conference on Pattern Recognition}",
	isbn          = "978-1-4673-2216-4",
	pages         = "1505--1508",
	publisher     = "{IEEE Computer Society}",
	title         = "{Group encoding of local features in image classification}",
	year          = 2012,
}