Sciweavers

1769 search results - page 262 / 354
» An implementation of argument based discussion
Sort
View
CHI
2005
ACM
16 years 6 months ago
DeDe: design and evaluation of a context-enhanced mobile messaging system
This paper presents the design, implementation and validation of an enhanced mobile phone messaging system (DeDe), allowing the sender to define the context in which the message w...
Younghee Jung, Per Persson, Jan Blom
VLDB
2007
ACM
108views Database» more  VLDB 2007»
16 years 6 months ago
Update Exchange with Mappings and Provenance
We consider systems for data sharing among heterogeneous peers related by a network of schema mappings. Each peer has a locally controlled and edited database instance, but wants ...
Todd J. Green, Grigoris Karvounarakis, Zachary G. ...
SIGMOD
2007
ACM
150views Database» more  SIGMOD 2007»
16 years 6 months ago
Exploiting self-monitoring sample views for cardinality estimation
Good cardinality estimates are critical for generating good execution plans during query optimization. Complex predicates, correlations between columns, and user-defined functions...
Jingren Zhou, Per-Åke Larson, Peter Zabback,...
SIGMOD
2007
ACM
134views Database» more  SIGMOD 2007»
16 years 6 months ago
Updating a cracked database
A cracked database is a datastore continuously reorganized based on operations being executed. For each query, the data of interest is physically reclustered to speed-up future ac...
Stratos Idreos, Martin L. Kersten, Stefan Manegold
SIGMOD
2006
ACM
116views Database» more  SIGMOD 2006»
16 years 6 months ago
Extensible optimization in overlay dissemination trees
We introduce XPORT, a profile-driven distributed data dissemination system that supports an extensible set of data types, profile types, and optimization metrics. XPORT efficientl...
Olga Papaemmanouil, Yanif Ahmad, Ugur Çetin...