Nicola Ferro

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This article is a study of the themes and issues concerning the annotation of digital contents, such as textual documents, images, and multimedia documents in general. These digital contents are automatically managed by different kinds of digital library management systems and more generally by different kinds of information management systems. Even though(More)
We describe the objectives and organization of the CLEF 2008 ad hoc track and discuss the main characteristics of the tasks offered to test monolingual and cross-language textual document retrieval systems. The track was changed considerably this year with the introduction of new document collections consisting of library catalog records derived from The(More)
Today managing textual resources and providing full-text search capabilities on them is a relevant issue also for database management systems. Stemming is part of the indexing and searching processes, when we deal with textual resources. In this paper we present a languageindependent probabilistic model which can automatically generate stemmers for several(More)
After being a pilot track in 2005, GeoCLEF advanced to be a regular track within CLEF 2006. The purpose of GeoCLEF is to test and evaluate cross-language geographic information retrieval (GIR): retrieval for topics with a geographic specification. For GeoCLEF 2006, twenty-five search topics were defined by the organizing groups for searching English,(More)
GeoCLEF ran as a regular track for the second time within the Cross Language Evaluation Forum (CLEF) 2007. The purpose of GeoCLEF is to test and evaluate cross-language geographic information retrieval (GIR): retrieval for topics with a geographic specification. GeoCLEF 2007 consisted of two sub tasks. A search task ran for the third time and a query(More)
This paper discusses two kinds of search strategies supported by the Flexible Annotation Service Tool (FAST), an annotation service that can be used by different Digital Library Management Systems (DLMSs). The first strategy concerns the search and retrieval of annotations, considered as stand-alone documents; while, the second one regards how to exploit(More)