91 search results - page 12 / 19 » Aggregate Operators in Constraint Query Languages |
EDBTW
2006
Springer
13 years 11 months ago
2006
Springer
Abstract. Recent research efforts in the fields of data stream processing and data stream management systems (DSMSs) show the increasing importance of processing data streams, e. g...
ICDE
2004
IEEE
14 years 8 months ago
2004
IEEE
Twig queries represent the building blocks of declarative query languages over XML data. A twig query describes a complex traversal of the document graph and generates a set of el...
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 ...
DOLAP
2000
ACM
13 years 11 months ago
2000
ACM
Being able to efficiently answer arbitrary OLAP queries that aggregate along any combination of dimensions over numerical and categorical attributes has been a continued, major co...
CHI
2002
ACM
14 years 7 months ago
2002
ACM
HANDS is a new programming system for children that was designed for usability. This paper examines the effectiveness of three features of HANDS: queries, aggregate operations, an...