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VLDB
2003
ACM
107views Database» more  VLDB 2003»
16 years 6 months ago
A performance study of four index structures for set-valued attributes of low cardinality
The efficient retrieval of data items on set-valued attributes is an important research topic that has attracted little attention so far. We studied and modified four index structu...
Sven Helmer, Guido Moerkotte
ICASSP
2009
IEEE
16 years 1 months ago
Rate efficient remote video file synchronization
Video file synchronization between remote users is an important task in many applications. Re-transmission of a video that has been only slightly modified is expensive, wasteful...
Hao Zhang, Chuohao Yeo, Kannan Ramchandran
ASIACRYPT
2000
Springer
15 years 10 months ago
Security of Signed ElGamal Encryption
Assuming a cryptographically strong cyclic group G of prime order q and a random hash function H, we show that ElGamal encryption with an added Schnorr signature is secure against ...
Claus-Peter Schnorr, Markus Jakobsson
USENIX
2007
15 years 8 months ago
Implementation and Performance Evaluation of Fuzzy File Block Matching
The fuzzy file block matching technique (fuzzy matching for short), was first proposed for opportunistic use of Content Addressable Storage. Fuzzy matching aims to increase the ...
Bo Han, Peter J. Keleher
ICIP
2009
IEEE
15 years 4 months ago
A compressive-sensing based watermarking scheme for sparse image tampering identification
In this paper we describe a robust watermarking scheme for image tampering identification and localization. A compact representation of the image is first produced by assembling a...
Giuseppe Valenzise, Marco Tagliasacchi, Stefano Tu...