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SIGMOD
2008
ACM
118views Database» more  SIGMOD 2008»
15 years 10 months ago
Freebase: a collaboratively created graph database for structuring human knowledge
Freebase is a practical, scalable tuple database used to structure general human knowledge. The data in Freebase is collaboratively created, structured, and maintained. Freebase c...
Kurt D. Bollacker, Colin Evans, Praveen Paritosh, ...
CORR
2012
Springer
209views Education» more  CORR 2012»
13 years 5 months ago
Aggregation in Probabilistic Databases via Knowledge Compilation
This paper presents a query evaluation technique for positive relational algebra queries with aggregates on a representation system for probabilistic data based on the algebraic s...
Robert Fink, Larisa Han, Dan Olteanu
SSDBM
1999
IEEE
86views Database» more  SSDBM 1999»
15 years 2 months ago
A Query System in a Biological Database
In this paper, we present a query system that has been implemented in a practical biological database - GPCRDB. Distinguishing features of this system include: smart query relaxat...
Dunren Che, Yangjun Chen, Karl Aberer
COOPIS
2003
IEEE
15 years 3 months ago
Ontology Based Query Processing in Database Management Systems
The use of semantic knowledge in its various forms has become an important aspect in managing data in database and information systems. In the form of integrity constraints, it ha...
Chokri Ben Necib, Johann Christoph Freytag
DAWAK
1999
Springer
15 years 2 months ago
Implementation of Multidimensional Index Structures for Knowledge Discovery in Relational Databases
Efficient query processing is one of the basic needs for data mining algorithms. Clustering algorithms, association rule mining algorithms and OLAP tools all rely on efficient quer...
Stefan Berchtold, Christian Böhm, Hans-Peter ...