49 search results - page 5 / 10 » Grouping and aggregation in the concept-oriented data model |
ICSNC
2007
IEEE
14 years 1 months ago
2007
IEEE
RFID data are usually regarded as streaming data that are huge and change frequently because they are gathered continuously by numerous readers. RFID middleware filters the data a...
SIGOPSE
2004
ACM
14 years 24 days ago
2004
ACM
Research in sensor networks, continuous queries (CQ), and other domains has been motivated by powerful applications that aim to aggregate, assimilate, and interact with scores of ...
IDEAS
2000
IEEE
13 years 11 months ago
2000
IEEE
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
RTCSA
2007
IEEE
14 years 1 months ago
2007
IEEE
RFID middleware systems collect and filter RFID streaming data gathered continuously by numerous readers to process requests from applications. These requests are called continuou...
MM
2009
ACM
14 years 1 months ago
2009
ACM
As more and more video content is made available and accessed on-demand, content and service providers face challenges of scale. Today’s delivery mechanisms, especially unicast,...