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ICDE
2004
IEEE
15 years 10 days 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...
ECLIPSE
2006
ACM
14 years 5 months ago
2006
ACM
The popularity of XML has motivated the development of novel XML processing tools many of which embed the XPath language for XML querying, transformation, constraint specificatio...
CLEF
2010
Springer
14 years 2 days ago
2010
Springer
In our participation to the 2010 LogCLEF track we focused on the analysis of the European Library (TEL) logs and in particular we experimented with the identification of the natura...
GIS
1998
ACM
13 years 10 months ago
1998
ACM
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
IDEAS
2005
IEEE
14 years 4 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...