In this article we describe the operationalised Business Intelligence (BI) environment of the Amsterdam-Amstelland Police Department (AAPD) as it presented itself in the spring of...
OLAP (On-Line Analytical Processing) is an important notion in data analysis. Recently, more and more graph or networked data sources come into being. There exists a similar need ...
Web services are self-contained, modular units of application logic which provide business functionality to other applications via Internet connections. Several models have been u...
Decision support systems are important in leveraging information present in data warehouses in businesses like banking, insurance, retail and health-care among many others. The mu...
Maintaining materialized views that have join conditions between arbitrary pairs of data sources possibly with cycles is critical for many applications. In this work, we model vie...