Data integration is a pervasive challenge faced in applications that need to query across
multiple autonomous and heterogeneous data sources. Data integration is crucial in large …

The problem of defining global views of heterogeneous data sources to support querying
and cooperation activities is becoming more and more important due to the availability of …

Develo** intelligent tools for the integration of information extracted from multiple
heterogeneous sources is a challenging issue to effectively exploit the numerous sources …

The Web is becoming the main information dissemination means in private and public
organizations. As a consequence, several applications at both internet and intranet level …

Author-X is a Java-based system that addresses the security issues of access control and
policy design for XML document administration. Author-X supports the specification of …

E-commerce, web-based booking systems, and on-line auction systems are only a few
examples that demonstrate how web sites are evolving from essentially read-only …

The rapid growth of the Web and the ease with which data can be accessed facilitate the
distribution and sharing of information. Information dissemination often takes the form of …

XML (eXtensible Markup Language) is becoming the most relevant standardization effort in
the area of document representation through markup languages. Through XML, it is possible …

To support the development of uniform query interfaces over distributed and heterogeneous
databases, tools for the analysis and reconciliation of database conceptual schemas are …

A critical issue for P2P systems is to perform an effective content retrieval taking into account
semantic properties of what is searched. Important requirements to be considered for …