Extraction and Exploitation of Intensional Knowledge from Heterogeneous Information Sources: Semi-Automatic Approaches and Tools

The problem of integrating multiple information sources into a unified data store is currently one of the most important challenges in data management. Within the field of source integration, the problem of automatically gen- ating an integrated description of the data sources is surely one of the most relevant. The significance of the issue can be best understood if one c- siders the huge number of information sources that an organization has to integrate. Indeed, it is even impossible to ...