@inproceedings{eventrecognitioninvideosbylearningfrom,
  title = {Event Recognition in Videos by Learning from Heterogeneous Web Sources},
  author = {Lin Chen and Lixin Duan and Dong Xu},
  year = {2013},
  booktitle = {CVPR 2013 6},
  url = {http://openaccess.thecvf.com/content_cvpr_2013/html/Chen_Event_Recognition_in_2013_CVPR_paper.html},
}