Integration of multiple heterogeneous data sources continues to be a critical problem for many application domains and a challenge for researchers world-wide. With the increasing ...
Advanced object-oriented applications require the management of schema versions, in order to cope with changes in the structure of the stored data. Two types of versioning have be...
Fabio Grandi, Federica Mandreoli, Maria Rita Scala...
We discuss the main features of a multilevel dictionary based on a metamodel approach. The application is an implementation of ModelGen, the model management operator that translat...
Paolo Atzeni, Paolo Cappellari, Philip A. Bernstei...
Schema mappings are declarative specifications that describe the relationship between two database schemas. In recent years, there has been an extensive study of schema mappings a...
A new class of associations (polynomial itemsets and polynomial association rules) is presented which allows for discovering nonlinear relationships between numeric attributes wit...