4051 search results - page 496 / 811 » Aggregation |
152
click to vote
PODS
2002
ACM
16 years 5 months ago
2002
ACM
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
147
click to vote
PODS
2005
ACM
16 years 5 months ago
2005
ACM
In sensor networks, data acquisition frequently takes place at lowcapability devices. The acquired data is then transmitted through a hierarchy of nodes having progressively incre...
189
Voted
EDBT
2004
ACM
16 years 5 months ago
2004
ACM
In recent years, privacy preserving data mining has become an important problem because of the large amount of personal data which is tracked by many business applications. In many...
163
click to vote
EDBT
2006
ACM
16 years 5 months ago
2006
ACM
Traditional content based publish/subscribe (pub/sub) systems allow users to express stateless subscriptions evaluated on individual events. However, many applications such as moni...
128
click to vote
EDBT
2008
ACM
16 years 5 months ago
2008
ACM
XML Schema awareness has been an integral part of the XQuery language since its early design stages. Matching XML data against XML types is the main operation that backs up XQuery...