159 search results - page 19 / 32 » Performing grouping and aggregate functions in XML queries |
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Many algorithms have been proposed to approximate holistic aggregates, such as quantiles and heavy hitters, over data streams. However, little work has been done to explore what t...
PVLDB
2010
13 years 5 months ago
2010
In this paper, we present SnipSuggest, a system that provides onthe-go, context-aware assistance in the SQL composition process. SnipSuggest aims to help the increasing population...
DOLAP
2003
ACM
14 years 20 days ago
2003
ACM
Motivated by the need for more flexible OLAP systems, this paper presents work on logical integration of external data in OLAP databases, carried out in cooperation between the D...
TKDE
2002
13 years 7 months ago
2002
Since WWW encourages hypertext and hypermedia document authoring (e.g. HTML or XML), Web authors tend to create documents that are composed of multiple pages connected with hyperl...
ICDT
2011
ACM
12 years 11 months ago
2011
ACM
Distributed data management systems consist of peers that store, exchange and process data in order to collaboratively achieve a common goal, such as evaluate some query. We study...