173 search results - page 6 / 35 » Consistent Query Answering in Data Warehouses |
DKE
1999
13 years 9 months ago
1999
A Data Warehouse DW is a database that collects and stores data from multiple remote and heterogeneous information sources. When a query is posed, it is evaluated locally, without...
EDBT
2009
ACM
13 years 7 months ago
2009
ACM
A typical online Business Intelligence (BI) workload consists of a combination of short, less intensive queries, along with long, resource intensive queries. As such, the longest ...
ER
2004
Springer
14 years 3 months ago
2004
Springer
Abstract. As several mature implementations of data warehousing systems are fully operational, a crucial role in preserving their up-to-dateness is played by the ability to manage ...
VLDB
2002
ACM
14 years 9 months ago
2002
ACM
The view selection problem is to choose a set of views to materialize over a database schema, such that the cost of evaluating a set of workload queries is minimized and such that ...
DEXAW
2004
IEEE
14 years 1 months ago
2004
IEEE
Many applications refer to moving objects or phenomena and require spatio-temporal modelling and specific analysis. Unlike conventional data where attributes are simple values (nu...