141 search results - page 13 / 29 » Equivalence of queries combining set and bag-set semantics |
ADBIS
2005
Springer
14 years 1 months ago
2005
Springer
In today’s integrating information systems data fusion, i.e., the merging of multiple tuples about the same real-world object into a single tuple, is left to ETL tools and other ...
BMCBI
2008
13 years 8 months ago
2008
Background: The most renowned biological ontology, Gene Ontology (GO) is widely used for annotations of genes and gene products of different organisms. However, there are shortcom...
KRMED
2008
13 years 9 months ago
2008
By constructing local extensions to SNOMED we aim to enrich existing medical and related data stores, simplify the expression of complex queries, and establish a foundation for se...
ICDT
1997
ACM
14 years 17 days ago
1997
ACM
The paper introduces a model of the Web as an in nite, semistructured set of objects. We reconsider the classical notions of genericity and computability of queries in this new con...
PODS
1997
ACM
14 years 18 days ago
1997
ACM
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...