Sciweavers

843 search results - page 159 / 169
» Generic Schema Mappings
Sort
View
ICASSP
2011
IEEE
14 years 1 months ago
Basis pursuit for spectrum cartography
A nonparametric version of the basis pursuit method is developed for field estimation. The underlying model entails known bases, weighted by generic functions to be estimated fro...
Juan Andrés Bazerque, Gonzalo Mateos, Georg...
VLDB
2005
ACM
125views Database» more  VLDB 2005»
15 years 10 months ago
Sync your data: update propagation for heterogeneous protein databases
The traditional model of bench (wet) chemistry in many life sciences domain is today actively complimented by computer-based discoveries utilizing the growing number of online data...
Kajal T. Claypool, Elke A. Rundensteiner
PODS
2006
ACM
137views Database» more  PODS 2006»
15 years 9 months ago
Data exchange: computing cores in polynomial time
Data exchange deals with inserting data from one database into another database having a different schema. We study and solve a central computational problem of data exchange, nam...
Georg Gottlob, Alan Nash
ICDE
2010
IEEE
408views Database» more  ICDE 2010»
15 years 4 months ago
Hive - a petabyte scale data warehouse using Hadoop
— The size of data sets being collected and analyzed in the industry for business intelligence is growing rapidly, making traditional warehousing solutions prohibitively expensiv...
Ashish Thusoo, Joydeep Sen Sarma, Namit Jain, Zhen...
EDBT
2010
ACM
185views Database» more  EDBT 2010»
15 years 4 months ago
Optimizing joins in a map-reduce environment
Implementations of map-reduce are being used to perform many operations on very large data. We examine strategies for joining several relations in the map-reduce environment. Our ...
Foto N. Afrati, Jeffrey D. Ullman