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EUROSYS
2011
ACM
12 years 11 months ago
Increasing performance in byzantine fault-tolerant systems with on-demand replica consistency
Traditional agreement-based Byzantine fault-tolerant (BFT) systems process all requests on all replicas to ensure consistency. In addition to the overhead for BFT protocol and sta...
Tobias Distler, Rüdiger Kapitza
GI
2005
Springer
14 years 29 days ago
Towards Update Relevance Checks in a Context Aware Mobile Information System
: In order to reduce transmission cost mobile information system clients often cache data retrieved in a context aware manner. In the case of updates it may happen that this data b...
Hagen Höpfner
ICDE
2007
IEEE
125views Database» more  ICDE 2007»
14 years 8 months ago
Collecting and Maintaining Just-in-Time Statistics
Traditional DBMSs decouple statistics collection and query optimization both in space and time. Decoupling in time may lead to outdated statistics. Decoupling in space may cause s...
Amr El-Helw, Ihab F. Ilyas, Wing Lau, Volker Markl...
PDP
2005
IEEE
14 years 1 months ago
FOBr: A Version-Based Recovery Protocol For Replicated Databases
Within the field of databases that are deployed in distributed environments there is a need to guarantee consistency among replicas and availability among nodes despite of networ...
Francisco Castro-Company, Luis Irún-Briz, F...
MSWIM
2003
ACM
14 years 21 days ago
Randomized location service in mobile ad hoc networks
Mobile Ad-Hoc Networks (MANETS) are networks of mobile nodes that do not have a fixed infrastructure. Recent research in this field addresses ways of solving existing problems i...
Sangeeta Bhattacharya