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» SQLST: A Spatio-Temporal Data Model and Query Language
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BTW
2007
Springer
93views Database» more  BTW 2007»
15 years 10 months ago
Towards an Integrated Model for Data, Metadata, and Operations
: Information integration requires manipulating data and metadata in ways that in general go beyond a single existing transformation formalism. As a result, a complete source-to-ta...
Jürgen Göres, Stefan Dessloch
IDEAS
2000
IEEE
108views Database» more  IDEAS 2000»
15 years 8 months ago
Plug and Play with Query Algebras: SECONDO-A Generic DBMS Development Environment
We present SECONDO, a new generic environment supporting the implementation of database systems for a wide range of data models and query languages. On the one hand, this framewor...
Stefan Dieker, Ralf Hartmut Güting
SEMWEB
2009
Springer
15 years 10 months ago
Queries to Hybrid MKNF Knowledge Bases through Oracular Tabling
An important issue for the Semantic Web is how to combine open-world ontology languages with closed-world (non-monotonic) rule paradigms. Several proposals for hybrid languages all...
José Júlio Alferes, Matthias Knorr, ...
JMLR
2012
13 years 6 months ago
Active Clustering of Biological Sequences
Given a point set S and an unknown metric d on S, we study the problem of efficiently partitioning S into k clusters while querying few distances between the points. In our model...
Konstantin Voevodski, Maria-Florina Balcan, Heiko ...
SIGIR
1996
ACM
15 years 8 months ago
A Deductive Data Model for Query Expansion
We present a deductive data model for concept-based query expansion. It is based abstraction levels: the conceptual, the expression and the occurrence level. Concepts and their re...
Kalervo Järvelin, Jaana Kristensen, Timo Niem...