Sciweavers

198 search results - page 28 / 40
» Efficient Bit Allocation for Dependent Video Coding
Sort
View
SIGMOD
2007
ACM
179views Database» more  SIGMOD 2007»
15 years 9 months ago
How to barter bits for chronons: compression and bandwidth trade offs for database scans
Two trends are converging to make the CPU cost of a table scan a more important component of database performance. First, table scans are becoming a larger fraction of the query p...
Allison L. Holloway, Vijayshankar Raman, Garret Sw...
COMCOM
2004
130views more  COMCOM 2004»
14 years 9 months ago
An OVSF code assignment scheme utilizing multiple RAKE combiners for W-CDMA
Orthogonal variable spreading factor (OVSF) codes have been proposed as the channelization codes used in the wideband CDMA access technology of IMT-2000. OVSF codes have the advant...
Li-Hsing Yen, Ming-Chun Tsou
CORR
2008
Springer
147views Education» more  CORR 2008»
14 years 9 months ago
Impact of CSI on Distributed Space-Time Coding in Wireless Relay Networks
We consider a two-hop wireless network where a transmitter communicates with a receiver via M relays with an amplify-and-forward (AF) protocol. Recent works have shown that sophis...
Mari Kobayashi, Xavier Mestre
ICS
2010
Tsinghua U.
15 years 6 months ago
Non-Malleable Codes
We introduce the notion of "non-malleable codes" which relaxes the notion of error-correction and errordetection. Informally, a code is non-malleable if the message cont...
Stefan Dziembowski, Krzysztof Pietrzak, Daniel Wic...
CPM
1998
Springer
209views Combinatorics» more  CPM 1998»
15 years 1 months ago
A Fast Bit-Vector Algorithm for Approximate String Matching Based on Dynamic Programming
The approximate string matching problem is to find all locations at which a query of length m matches a substring of a text of length n with k-or-fewer differences. Simple and prac...
Gene Myers