43 search results - page 3 / 9 » Authenticated Index Structures for Aggregation Queries |
ICDE
2008
IEEE
14 years 7 months ago
2008
IEEE
Given a record set D and a query score function F, a top-k query returns k records from D, whose values of function F on their attributes are the highest. In this paper, we investi...
EDBT
2004
ACM
14 years 6 months ago
2004
ACM
XML makes data flexible in representation and easily portable on the Web but it also substantially inflates data size as a consequence of using tags to describe data. Although many...
EDBT
2002
ACM
14 years 6 months ago
2002
ACM
Abstract. Aggregate window queries return summarized information about objects that fall inside a query rectangle (e.g., the number of objects instead of their concrete ids). Tradi...
WAIM
2009
Springer
14 years 21 days ago
2009
Springer
Large amount of uncertain data is inherent in many novel and important applications such as sensor data analysis and mobile data management. A probabilistic threshold range aggrega...
SIGMOD
2002
ACM
14 years 6 months ago
2002
ACM
In this paper, we ask if the traditional relational query acceleration techniques of summary tables and covering indexes have analogs for branching path expression queries over tr...