AMW
2010
13 years 5 months ago
2010
APCCM
2008
13 years 5 months ago
2008
Modeling is core software engineering practice. Conceptual models are constructed to establish an abstract understanding of the domain among stakeholders. These are then refined i...
AMW
2010
13 years 5 months ago
2010
Based on practical observations on rule-based inference on RDF data, we study the problem of redundancy elimination in RDF in the presence of rules (in the form of Datalog rules) a...
APCCM
2008
13 years 5 months ago
2008
This paper considers conceptual modelling for three purposes namely data modelling, knowledge modelling and ontology modelling. It differentiates between the nature of the concept...
AMW
2010
13 years 5 months ago
2010
We consider incomplete specifications of XML documents in the presence of schema information and integrity constraints. We show that integrity constraints such as keys and foreign ...
AMW
2010
13 years 5 months ago
2010
We address the problem of answering conjunctive queries over knowledge bases, specified by sets of first-order sentences called tuple-generating dependencies (TGDs). This problem i...
AMW
2010
13 years 5 months ago
2010
In this work we present in-network techniques to improve the efficiency of spatial aggregate queries. Such queries are very common in a sensornet setting, demanding more targeted t...
APCCM
2008
13 years 5 months ago
2008
We identify established tableaux techniques as an invaluable tool for semantic knowledge acquisition in the design process of relational databases. Sample databases allow users an...
AMW
2010
13 years 5 months ago
2010
Abstract. A large volume of data with complex structures is currently represented in GML (Geography Markup Language) for storing and exchanging geographic information. As the size ...
APCCM
2008
13 years 5 months ago
2008
There is an increasing community of researchers trying to draw attention to the importance of evaluation issues. Some approaches can be followed to evaluate the quality of softwar...