This paper proposes a new relevance feedback approach to collaborative information retrieval based on a confidence's network, which performs propagation relevance between annotations terms. The main contribution of our approach is to extract relevant terms to reformulate the initial user query...

Traditional information search approaches do not explicitly capture the meaning of a keyword query, but provide a good way for the user to express his or her information needs based on the keywords. In principle, semantic search aims to produce better results than traditional keyword search, but...

The event extraction task consists in determining and classifying events within an open-domain text. It is very new for the Arabic language, whereas it attained its maturity for some languages such as English and French. Events extraction was also proved to help Natural Language Processing tasks...

In dieser Arbeit wird ein Datenmodell für Shared Annotationsvorgestellt. Basierend auf einem bereits existierenden Datenmodell fürAnnotationen, wird dieses erweitert um die Möglichkeit der Modellierung vonShared Annotations. Daraufhin werden Funktionen von Shared Annotationserläutert, die...