منابع مشابه
Isotropic Hashing
Most existing hashing methods adopt some projection functions to project the original data into several dimensions of real values, and then each of these projected dimensions is quantized into one bit (zero or one) by thresholding. Typically, the variances of different projected dimensions are different for existing projection functions such as principal component analysis (PCA). Using the same...
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In recent years, a lot of attention has been devoted to efficient nearest neighbor search by means of similarity-preserving hashing. One of the plights of existing hashing techniques is the intrinsic trade-off between performance and computational complexity: while longer hash codes allow for lower false positive rates, it is very difficult to increase the embedding dimensionality without incur...
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1 Helsinki Institute for Information Technology, Department of Computer Science, Aalto University, Finland. [email protected]. Supported by the Academy of Finland, Grants 252083 and 256287. 2 Helsinki Institute for Information Technology, Department of Computer Science University of Helsinki, Finland. [email protected] Supported by the Academy of Finland, Grant 125637. 3 Utrecht Univ...
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ژورنال
عنوان ژورنال: IPSJ Transactions on Computer Vision and Applications
سال: 2013
ISSN: 1882-6695
DOI: 10.2197/ipsjtcva.5.40