With the massive advance of electronic document repositories, usable interfaces to these repositories gain importance. While sophisticated information retrieval techniques provide...
In the real world there seem to be essential differences between shops, tourist offices, city halls, theatres and museums. However, when we try to design virtual environments allow...
The IDEX system is a prototype of an interactive dynamic Information Extraction (IE) system. A user of the system expresses an information request in the form of a topic descripti...
A query burst is a period of heightened interest of users on a topic which yields a higher frequency of the search queries related to it. In this paper we examine the behavior of s...
Existing search engines contain the picture of the Web from the past and their ranking algorithms are based on data crawled some time ago. However, a user requires not only relevan...