Various kinds of data are processed in workflow management systems: from case data to control data, from internal data to access to external databases or documents exchanged in int...
Christian Dreier, Johann Eder, Marek Lehmann, Amir...
The World Wide Web no longer consists just of HTML pages. Our work sheds light on a number of trends on the Internet that go beyond simple Web pages. The hidden Web provides a wea...
Fabian M. Suchanek, Aparna S. Varde, Richi Nayak, ...
Armstrong databases are a popular tool in example-based database design. An Armstrong database for a given constraint set from a fixed constraint class Z satisfies precisely those ...
We study the problem of querying data sources that accept only a limited set of queries, such as sources accessible by Web services which can implement very large (potentially inf...
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...