367 search results - page 29 / 74 » Algorithms for selecting materialized views in a data wareho... |
AAAI
2000
13 years 10 months ago
2000
Selective sampling, a form of active learning, reduces the cost of labeling training data by asking only for the labels of the most informative unlabeled examples. We introduce a ...
SAC
2008
ACM
13 years 8 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
PODS
2003
ACM
14 years 9 months ago
2003
ACM
We consider the view selection problem for XML content based routing: given a network, in which a stream of XML documents is routed and the routing decisions are taken based on re...
JIIS
2006
13 years 8 months ago
2006
A join of two relations in real databases is usually much smaller than their cartesian product. This means that most of the combinations of tuples in the crossproduct of the respe...
SIGMOD
1997
ACM
14 years 29 days ago
1997
ACM
: The read-mostly environment of data warehousing makes it possible to use more complex indexes to speed up queries than in situations where concurrent updatesare present. The curr...