709 search results - page 16 / 142 » Efficient Evaluation of All-Nearest-Neighbor Queries |
IDEAS
2005
IEEE
14 years 1 months ago
2005
IEEE
We introduce and study a new class of queries that we refer to as ACMA (arithmetic constraints on multiple attributes) queries. Such combinatorial queries require the simultaneous...
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...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Complex queries often contain common or similar subexpressions, either within a single query or among multiple queries submitted as a batch. If so, query execution time can be imp...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
XML is widely praised for its flexibility in allowing repeated and missing sub-elements. However, this flexibility makes it challenging to develop a bulk algebra, which typically ...
ICDE
2000
IEEE
13 years 11 months ago
2000
IEEE
Increasing application demands are pushing database management systems (DBMSs) towards providing adequate and efficient support for content-based retrieval over multimedia objects...