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By Maristella Agosti, Floriana Esposito, Costantino Thanos

This publication constitutes the lawsuits of the sixth Italian examine convention on electronic Libraries held in Padua, Italy, in January 2010.

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Musto et al. 3. Personalization of Results When the user visits the museum, she will enjoy additional intelligent personalized services, based on her own user profile. At last, when the user will visit the museum she will enjoy useful additional services such as filtering of non-relevant item or building of a personalized museum tour according to his preferences. Specifically, we found two situations where personalized access could improve user experience: – when data about user interests are gathered, splitting paintings in two disjoint sets, interesting, and not interesting could be useful to build a personalized tour; – when the user enters into a room, providing suggestions about paintings she can be interested in can be useful.

A group of 30 users has been recruited for the test. The task has been divided in three phases: Integrating a Content-Based Recommender System into Digital Libraries 35 1. Registration and login; 2. Rating the artworks; 3. Tagging the artworks. After the registration, each user rated 45 artworks taken from the Vatican Picture Gallery web site and annotated them with a set of free tags. In order to evaluate the effectiveness of the services, we adopted the Normalized Distancebased Performance Measure (NDPM) [16] that compares the ranking imposed by the user ratings, with that computed by FIRSt.

These permit to realize crosswalks and might be based on the use of some ontology. Crosswalks. A crosswalk is a mapping of the elements, semantics, and syntax from one scheme to another. Currently, crosswalks are by far the most commonly used approach to enable interoperability between and among metadata schemes. Ontology-based Approaches. Ontologies were developed by the the Artificial Intelligence community to facilitate knowledge sharing and reuse. They are largely used for representing domain knowledge.

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