2027 search results - page 36 / 406 » An Adaptive Query Execution System for Data Integration |
MOBIHOC
2003
ACM
14 years 7 months ago
2003
ACM
Spatial query execution is an essential functionality of a sensor network, where a query gathers sensor data within a specific geographic region. Redundancy within a sensor networ...
Publication
This paper presents a framework for building and continuously maintaining spatio-temporal histograms (ST-Histograms, for short). ST-Histograms are used for selectivity estimation o...
DOLAP
2003
ACM
14 years 29 days ago
2003
ACM
Motivated by the need for more flexible OLAP systems, this paper presents work on logical integration of external data in OLAP databases, carried out in cooperation between the D...
COMPSAC
2007
IEEE
14 years 2 months ago
2007
IEEE
In a component-based system components are basic computation units implementing specific business functions, and their interactions are explicitly represented by connectors. If th...
WIDM
2005
ACM
14 years 1 months ago
2005
ACM
In order to formulate a meaningful XML query, a user must have some knowledge of the schema of the XML documents to be queried. The query will succeed only if the schema of the ac...