We study fundamental aspects related to the efficient processing of the SPARQL query language for RDF, proposed by the W3C to encode machine-readable information in the Semantic W...
Motivation: Database search programs such as FASTA, BLAST or a rigorous Smith–Waterman algorithm produce lists of database entries, which are assumed to be related to the query....
Abstract. The natural and surrogate key architectures are two competing approaches to specifying keys in relational databases. We analyze the performance of these approaches with r...
Slavica Aleksic, Milan Celikovic, Sebastian Link, ...
We consider queries which originate from a mobile unit and whose result depends on the location of the user who initiates the query. Example of such a query is How many people are ...
Sanjay Kumar Madria, Bharat K. Bhargava, Evaggelia...
: Moving Objects Databases have become an important research issue in recent years. For and querying moving objects, there exists a comprehensive framework of abstract data types t...
Ralf Hartmut Güting, Victor Teixeira de Almeida, ...