We present a valid-time extension of SQL and investigate its efficient implementation on an Object-Relational database system. We propose an approach where temporal queries are ex...
We study (collapsible) higher-order pushdown systems -- theoretically robust and well-studied models of higher-order programs -- along with their natural subclass called (collapsi...
Abstract. Topological relationships between spatial objects in the twodimensional space have been investigated for a long time in a number of disciplines like artificial intellige...
Pervasive applications rely on data captured from the physical world through sensor devices. Data provided by these devices, however, tend to be unreliable. The data must, therefor...
Shawn R. Jeffery, Gustavo Alonso, Michael J. Frank...
While there are many proposals for spatio-temporal data models and query languages, there is a lack of research into application development using spatio-temporal database systems....
Tony Griffiths, Norman W. Paton, Alvaro A. A. Fern...