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Junfeng He, Regunathan Radhakrishnan, Shih-Fu Chang, Claus Bauer. Compact Hashing with Joint Optimization of Search Accuracy and Time. In IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), oral session, June 2011.

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Similarity search, namely, finding approximate nearest neighborhoods, is the core of many large scale machine learning or vision applications. Recently, many research results demonstrate that hashing with compact codes can achieve promising performance for large scale similarity search. However, most of the previous hashing methods with compact codes only model and optimize the search accuracy. Search time, which is an important factor for hashing in practice, is usually not addressed explicitly. In this paper, we develop a new scalable hashing algorithm with joint optimization of search accuracy and search time simultaneously. Our method generates compact hash codes for data of general formats with any similarity function. We evaluate our method using diverse data sets up to 1 million samples (e.g., web images). Our comprehensive results show the proposed method significantly outperforms several state-of-the-art hashing approaches


Junfeng He
Shih-Fu Chang

BibTex Reference

   Author = {He, Junfeng and Radhakrishnan, Regunathan and Chang, Shih-Fu and Bauer, Claus},
   Title = {Compact Hashing with Joint Optimization of Search Accuracy and Time},
   BookTitle = {IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), oral session},
   Month = {June},
   Year = {2011}

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