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ICIAR
2004
Springer
14 years 3 months ago
Lossless Compression of Color-Quantized Images Using Block-Based Palette Reordering
Abstract. It is well-known that the lossless compression of color-indexed images can be improved if a suitable reordering of the palette is performed before encoding the images. In...
António J. R. Neves, Armando J. Pinho
HPCN
1999
Springer
14 years 2 months ago
A Parallel Implementation of the Block Preconditioned GCR Method
Abstract. The parallel implementation of GCR is addressed, with particular focus on communication costs associated with orthogonalization processes. This consideration brings up qu...
C. Vuik, Jason Frank
SPDP
1993
IEEE
14 years 2 months ago
Architectural Support for Block Transfers in a Shared-Memory Multiprocessor
This paper examines how the performance of a shared-memory multiprocessor can be improved by including hardware support for block transfers. A system similar to the Hector multipr...
Steven J. E. Wilton, Zvonko G. Vranesic
STACS
2000
Springer
14 years 1 months ago
On the Many Faces of Block Codes
Abstract. Block codes are first viewed as finite state automata represented as trellises. A technique termed subtrellis overlaying is introduced with the object of reducing decoder...
Kaustubh Deshmukh, Priti Shankar, Amitava Dasgupta...
DAGSTUHL
2007
13 years 11 months ago
A Collision-Resistant Rate-1 Double-Block-Length Hash Function
This paper proposes a construction for collision resistant 2n-bit hash functions, based on n-bit block ciphers with 2n-bit keys. The construction is analysed in the ideal cipher mo...
Stefan Lucks