2859 search results - page 141 / 572 » Querying Complex Structured Databases |
SIGIR
2009
ACM
14 years 2 months ago
2009
ACM
When search is against structured documents, it is beneficial to extract information from user queries in a format that is consistent with the backend data structure. As one step...
ICDT
2012
ACM
11 years 10 months ago
2012
ACM
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
JACM
2000
13 years 8 months ago
2000
We rework parts of the classical relational theory when the underlying domain is a structure with some interpreted operations that can be used in queries. We identify parts of the...
ICDE
1995
IEEE
14 years 9 months ago
1995
IEEE
?In a fuzzy relational database where a relation is a fuzzy set of tuples and ill-known data are represented by possibility distributions, nested fuzzy queries can be expressed in ...
ACTA
2002
13 years 8 months ago
2002
In the constraint database community, FO+poly and FO+linear have been proposed as foundations for spatial database query languages. One of the strengths of this approach is that t...