Mediterranean Archaeology and Archaeometry, Vol. 14, No 4, pp. 117-123 Copyright © 2014 MAA Printed in Greece. All rights reserved. EDUCATIONAL ENHANCING OF VIRTUAL EXPOSITIONS. TOWARDS VISITOR-CENTERED STORYTELLING DIGITAL MUSEOLOGY Ioannis Kanellos, Simona Antin, Orestis Dimou and Maria-Anastasia Kanellos Computer Science Department, Télécom Bretagne, CS 83818, 29238 Brest Cedex 3, France Received: 09/12/2013 Accepted: 22/06/2014 Corresponding author: Ioannis Kanellos (ioannis.kanellos@telecom-bretagne.eu) ABSTRACT We present here some basic ideas and functions of a system developed for cultural, sci- entific and technical mediations of a good quality but still affordable adapted storytelling. The adaptation concerns mainly the topic variety and the knowledge deepness. In the first part we discuss the origins of the storytelling approach, its interest in mediation tasks; we also handle the problem of transformation of some narrative functions into op- erational categories of analysis by means of adequate metadata. In the second part, we give some elements of the knowledge organization underlying such a system and precise the notions of learning profile and of point of view, for a case study concerning a video- based presentation of a Renaissance painting; in our case, we distinguish three profiles and nine points of view. We then give some examples illustrating the capacity of the sys- tem to build abundant adapted stories about the chosen painting; we also argue in favour of the local-ontology construction, which supports the whole system, both at the back- and the front-office levels. We finally conclude with some educational enhancements we currently develop (storytelling generalization containing complementary mediation modes, as Problem Resolution and Serious Games, integration of stereoscopic 3D videos, intelligent track of an end-user during her/his reading process as well as customized contextual assistance to her/him reading goal). KEYWORDS: digital museology, storytelling, cultural and educational mediation, adap- tive systems, variable deepness knowledge representation, user profile, points of view, ontologies, reading and interpretation strategy