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S. Gabrielli

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S. Gabrielli

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Publications by S. Gabrielli (bibliography)

» 2004 «

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Mirabella, V., Kimani, S., Gabrielli, S. and Catarci, Tiziana (2004): Accessible e-learning material: a no-frills avenue for didactical experts. In New Review of Hypermedia and Multimedia, 10 (2) pp. 165-180

“Different organizations adopt accessibility for various and diverse reasons. Interesting and inspiring as such reasons may be, it is important to ensure that the motivation for supporting accessibility is that it is the right thing to do, i.e. a commitment to the provision of equal opportunities for accessing resources for people with special needs. Among the various efforts for supporting the development of accessible e-learning material, most of them propose guidelines that prevalently address technical accessibility issues (such as the format and navigation of learning material) with little or no consideration for the didactical experts, and thus their didactical experience, in developing learning material. Moreover, the aforementioned guidelines tend to provide generic indications on alternative forms of didactical content for equivalent access to it. None the less, the sole provision of equivalent forms does not guarantee the retention of desirable user interface aspects and may therefore have a negative impact on learning effectiveness. While this paper acknowledges the role of such guidelines, it does propose that the didactical experts be provided with a non-technical recourse, improving their development of accessible e-learning content. By tapping into the experience of the didactical experts, this work provides them with an avenue leading to enhance the accessibility of e-learning material.”

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» 1996 «

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Agosti, M., Bandiera, R., Bazo, F., Colotti, R. and Gabrielli, S. (1996): OLISTICO: An Evaluation Environment for Interactive IR Applications. In: Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 1996. p. 342. Available online

“OLISTICO is an experimental evaluation environment where different methodological tools can be applied to evaluate the effectiveness of various types of interactive IR applications and systems. Problems of measuring system performance at interaction level with real users are addressed. Understanding of methodological consequences of taking an evaluation user-oriented paradigm, and developing of a conceptual framework within which collect and integrate qualitative and quantitative data on user information-seeking behaviour are faced. In the context of DUO-OPAC and Legal Documents hypertext HyperLaw2 evaluation studies OLISTICO made use of online questionnaires to identify user's profiles and interface effectiveness, transaction log to analyse different navigation strategies through available semantic structures, and ASL way of search length measuring in Hypertext IR systems. An "activity-centred" methodology is going to be embodied in the environment to establish if specific applications fit users real information needs as they emerge in the everyday practice, and evaluate expert workers interaction with IR tools, in their natural settings, as a way of accomplishing their typical working tasks. Therefore a new HIR system which implements HyperLaw2 model but with capabilities of managing different and new types of document collections is under development. Repeating the experiments with a more generalised system gives opportunities of evaluating the HIR model the systems are based on, and making the used evaluation methods more general and independent of any knowledge domain. Furthermore this study is giving insights on how to develop applications to enhance the quality of user-tasks performance within the context of computer-supported working activities.”

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