MOMIS: Overview
The MOMIS (Mediator envirOnment for Multiple Information Sources) is a
framework to perform information extraction and integration from
both structured and semistructured data sources. An object-oriented
language, with an underlying Description Logic, called ODL-I3,
derived from the standard ODMG is introduced for information
extraction. Information integration is then performed in a
semi-automatic way, by exploiting the knowledge in a Common
Thesaurus (defined by the framework) and ODL-I3 descriptions of
source schemas with a combination of clustering techniques and
Description Logics. This integration process gives rise to a
virtual integrated view of the underlying sources (the Global
Schema) for which mapping rules and integrity constraints are
specified to handle heterogeneity. The MOMIS system, based on a
conventional wrapper/mediator architecture, provides methods and
open tools for data management in Internet-based information systems
by using a CORBA-2 interface. MOMIS was developed as a joint
collaboration between the University of Modena and Reggio Emilia and
University of Milano and Brescia, within the INTERDATA national
research project, under the direction of Professor S. Bergamaschi. Now the research activity continues within the SEWASIE European project.
The MOMIS Home Page