In standard text retrieval systems, the documents are gathered and indexed on a single server. In distributed information retrieval (DIR), the documents are held in multiple colle...
This paper presents a Flexible Question Answering System (FQAS) for mobile wireless devices. FQAS comprises a fuzzy logic-based Information Retrieval (IR) System together with a q...
Querying and searching the Web is an important research field which has drawn a number of concepts from databases and information retrieval fields, but has added its own models, ...
This paper reports the participation of the XLDB Group from the University of Lisbon in the CLEF 2006 ad-hoc monolingual and bilingual subtasks for Portuguese. We present our IR s...
We explore the use of eye movements as a source of implicit relevance feedback information. We construct a controlled information retrieval experiment where the relevance of each t...