87 search results - page 4 / 18 » Using hashing to solve the dictionary problem |
CRYPTO
2004
Springer
13 years 11 months ago
2004
Springer
Abstract. In this paper, we study the existence of multicollisions in iterated hash functions. We show that finding multicollisions, i.e. r-tuples of messages that all hash to the...
ICIP
2008
IEEE
14 years 8 months ago
2008
IEEE
Hashes can be used to provide authentication of multimedia contents. In the case of images, a hash can be used to detect whether the data has been modified in an illegitimate way....
CVPR
2008
IEEE
13 years 6 months ago
2008
IEEE
We propose a joint representation and classification framework that achieves the dual goal of finding the most discriminative sparse overcomplete encoding and optimal classifier p...
SIGMOD
2010
ACM
13 years 11 months ago
2010
ACM
Similarity search methods are widely used as kernels in various data mining and machine learning applications including those in computational biology, web search/clustering. Near...
ICIP
2010
IEEE
13 years 4 months ago
2010
IEEE
We propose a motion deblurring algorithm that exploits sparsity constraints of image patches using one single frame. In our formulation, each image patch is encoded with sparse co...