985 search results - page 144 / 197 » On the validity of digital signatures |
DELOS
2000
13 years 9 months ago
2000
The acquisition of information is generally thought to be deliberately sought using a search or query mechanism or by browsing or scanning an information space. People, however, f...
ICASSP
2010
IEEE
13 years 8 months ago
2010
IEEE
We investigate the impact of using non-ideal lowpass filters in the modulated wideband (MWC) converter, which is a recent subNyquist sampling system for sparse wideband analog si...
FDL
2008
IEEE
13 years 7 months ago
2008
IEEE
Digital television (DTV) is an advanced broadcasting technology that is spreading fast today. It gives broadcasters the capability to send programs with a better picture and sound ...
JUCS
2008
13 years 7 months ago
2008
: This paper addresses the role of Personal Digital Assistants (PDAs) in electronic meetings. Several real-world scenarios of PDA usage in meetings are defined using a pattern lang...
PRL
2007
13 years 7 months ago
2007
This paper addresses the problem of compensating for lateral chromatic aberration in digital images through colour plane realignment. Two main contributions are made: the derivati...