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IJNSEC
2008
126views more  IJNSEC 2008»
15 years 6 months ago
A Hybrid Group Key Management Protocol for Reliable and Authenticated Rekeying
We present a hybrid group key management protocol that incorporates both a centralized and a contributory scheme for key management, and a tree-based Elliptic Curve Diffie-Hellman...
Depeng Li, Srinivas Sampalli
IJON
2006
85views more  IJON 2006»
15 years 6 months ago
From outliers to prototypes: Ordering data
We propose simple and fast methods based on nearest neighbors that order objects from high-dimensional data sets from typical points to untypical points. On the one hand, we show ...
Stefan Harmeling, Guido Dornhege, David M. J. Tax,...
IPM
2006
151views more  IPM 2006»
15 years 6 months ago
Document clustering using nonnegative matrix factorization
A methodology for automatically identifying and clustering semantic features or topics in a heterogeneous text collection is presented. Textual data is encoded using a low rank no...
Farial Shahnaz, Michael W. Berry, V. Paul Pauca, R...
IVC
2006
87views more  IVC 2006»
15 years 6 months ago
On the relation between Memon's and the modified Zeng's palette reordering methods
Palette reordering has been shown to be a very effective approach for improving the compression of color-indexed images by general purpose continuous-tone image coding techniques....
Armando J. Pinho, António J. R. Neves
SIGIR
2008
ACM
15 years 6 months ago
Term clouds as surrogates for user generated speech
User generated spoken audio remains a challenge for Automatic Speech Recognition (ASR) technology and content-based audio surrogates derived from ASR-transcripts must be error rob...
Manos Tsagkias, Martha Larson, Maarten de Rijke