Public archives contain large and continuously growing volumes of electronically available text documents. In many countries, public authorities are required by law to publish certain data to satisfy the information needs of the general public. In contrast to plain text documents, semantically tagged XML documents along with appropriate query languages largely facilitate searching and browsing ...

Cyber-infrastructures have transformed the practice of research. Researchers can now access distributed data worldwide with the help of cyber-infrastructures. User support services play an important role to facilitate researchers to accomplish their research goals with the help of cyber-infrastructures. However, the current user-support practices in cyberinfrastructures are not properly organiz...