This report provides the formal definition of the query language of the INFOMIX system. The query language of the INFOMIX system will be formally defined. The language is to be fully declarative, highly expressive, and able to deal with semi-structured data to some extent.

The aim of this paper is to present an approach and automated tools for designing knowledge bases describing the contents of information sources in PICSEL knowledgebased mediators. We address two problems: the abstraction problem and the representation problem, when information sources are relational databases. In a first part, we present an architectural overview of the PICSEL mediator showing...

Different approaches are available for the integration of existing health information systems (HIS) in integration projects. Within the PlugIT project in Finland, we have found it necessary to design and implement integration in a collaborative, multidisciplinary and open way. In this paper, we use some generic integration models and relate them to the methods, solutions and experiences of the ...

health databases contain a wide scope of clinical data to explore relationships and patterns that can lead to new medical knowledge.today, the emergence of integrated information systems and growth of information technologies have better highlighted the importance of such databases. data mining is among the technological advances toward data management whose integration with traditional methods...

The problem of data and information integration is widespread and growing in government and industry, and it is getting worse as legacy systems continue to appear. The absence of efficient large-scale practical solutions to the problem, and the promise of especially the information theoretic techniques on comparing sets of data values, make this an extremely rewarding and potentially high-payof...

ATIS (Advanced Travel Information Systems) are complex systems, dealing with a large amount of heterogeneous data from various sources. The exchange and integration of such data is therefore demanding, particularly for small mobility service providers with few IT (Information Technology) resources. To face this problem, this work illustrates an IT infrastructure to support information and servi...