2468 search results - page 131 / 494 » Aggregation operators 2003 |
SIGMOD
1995
ACM
14 years 14 days ago
1995
ACM
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...
SIGMOD
2009
ACM
14 years 9 months ago
2009
ACM
Enterprise mashup scenarios often involve feeds derived from data created primarily for eye consumption, such as email, news, calendars, blogs, and web feeds. These data sources c...
EDBT
2008
ACM
14 years 9 months ago
2008
ACM
XML Schema awareness has been an integral part of the XQuery language since its early design stages. Matching XML data against XML types is the main operation that backs up XQuery...
EUROSEC
2010
ACM
14 years 3 months ago
2010
ACM
Fighting global security threats with only a local view is inherently difficult. Internet network operators need to fight global phenomena such as botnets, but they are hampered...
DEXA
2009
Springer
14 years 3 months ago
2009
Springer
Semantic Web technologies facilitate data integration over a large number of sources with decentralised and loose coordination, ideally leading to interlinked datasets which descri...