A data fusion concept for a query language for multiple data sources

Query languages for multiple sensor data sources require a technique that allows fusion of the different types of sensor data that may be part of the queries. A method that generally can carry out the fusion process must therefore be developed. Such a process must be able to collect, transform and organize the information subject to fusion. It is of great importance that the uncertainties in the information are possible to deal with. Besides this, the applied data fusion method should be replaceable. The paper describes a fusion process designed for the query language /spl Sigma/QL.