Compact bag-of-words visual representation for effective linear classification

@inproceedings{Zhuang2013CompactBV,
  title={Compact bag-of-words visual representation for effective linear classification},
  author={Xiaodan Zhuang and Shuang Wu and Pradeep Natarajan},
  booktitle={ACM Multimedia},
  year={2013}
}
Bag-of-words approaches have been shown to achieve state-of-the-art performance in large-scale multimedia event detection. However, the commonly used histogram representation of bag-of-words requires large codebook sizes and expensive nonlinear kernel based classifiers for optimal performance. To address these two issues, we present a two-part generative model for compact visual representation, based on the i-vector approach recently proposed for speech and audio modeling. First, we use a… CONTINUE READING