As the volume of information on the Web grows, it has become increasingly difficult to find
web pages that are relevant to a specific domain or topic. In this paper, we explore the …

As the information era progresses, the sheer volume of information calls for sophisticated
retrieval systems. Evaluating them holds the key to ensuring the reliability and relevance of …

Dynamic search is an information retrieval task that involves a sequence of queries for a
complex information need (eg searching for one-week tour plans in Italy). It is characterized …

This thesis proposes a novel model for automatically generate topic map for a document
corpus with no supervision. We extend a previous approach to discovery of lexical relations …

In der vorliegenden Arbeit sollen neue Methoden entwickelt werden, um die explorative
Suche zu erleichtern, indem Kontextinformationen aus dem gesamten Suchprozess des …

In the early years of the internet, search engines did not distinguish between their users: the
same query generated the same search results for everyone, independent of any contextual …