@InPrceedings{chen2009 
  author = {Ya-Xi Chen},
  title  = "{User Query Behavior: Implications for the Design of Image Retrieval Systems}",
  booktitle = {Proceedings of IADIS International Conference on WWW/Internet, ICWI 2009, Rome, Italy, November 19-22, 2009.},
  year =   {2009}
  }