53 search results - page 7 / 11 » Optimizing joins in a map-reduce environment |
COMAD
2009
13 years 8 months ago
2009
Stream grids are wide-area grid computing environments that are fed by a set of stream data sources. Such grids are becoming more wide-spread due to the large scale deployment of ...
SEMWEB
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
We consider the problem of pipelined filters, where a continuous stream of tuples is processed by a set of commutative filters. Pipelined filters are common in stream applications...
ICDE
2006
IEEE
14 years 1 months ago
2006
IEEE
Although the ant metaphor has been successfully applied to routing of data packets both in wireless and fixed networks, little is yet known about its applicability to the task of...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Commercial enterprise data warehouses are typically implemented on parallel databases due to the inherent scalability and performance limitation of a serial architecture. Queries ...