The development of the Internet in recent years has made it possible and useful to access
many different information systems anywhere in the world to obtain information. While there …

The first edition of this book appeared in 1991 when the technology was new and there were
not too many products. In the Preface to the first edition, we had quoted Michael Stonebraker …

Ethernet, the most widely used commodity network, increasingly moves toward switches as
implementation technology thus replacing buses. This allows to use traffic shaping …

Developing intelligent systems to integrate numerous, autonomous and heterogeneous data
sources in order to give end users an uniform query interface is a great challenging issue …

Data-Providing (DP) services allow query-like access to organizations' data via web
services. The invocation of a DP service results in the execution of a query over data …

Entity matching (EM) finds data instances that refer to the same real-world entity. In 2015, we
started the Magellan project at UW-Madison, joint with industrial partners, to build EM …

The proliferation of spatial data on the Internet is beginning to allow a much wider access to
data currently available in various Geographic Information Systems (GIS). In order to move …

Data integration is the process that gives users access to multiple data sources through
queries against a global schema. The semantic heterogeneity has been identified as the …

As the proliferation of the Internet, especially World Wide Web, numerous information
resources have been constructed. The characteristics of information resources on the …

In the last few years, there has been significant interest in the design of incremental methods
to improve the performance of view maintenance. Despite that, very little analysis or …