@inproceedings{chai2009ontology,
  title={Ontology-based digital photo annotation using multi-source information},
  author={Chai, Yanmei and Zhu, Xiaoyan and Zhou, Sen and Bian, Yiting and Bu, Fan and Li, Wei and Zhu, Jing},
  booktitle={Computational Intelligence for Measurement Systems and Applications, 2009. CIMSA'09. IEEE International Conference on},
  pages={38--41},
  year={2009},
  organization={IEEE}
}