Papers by Daniela Petrelli
Human-computer Interaction, 2012
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Elaborating on the result of a field study of Christmas traditions in eight British households, w... more Elaborating on the result of a field study of Christmas traditions in eight British households, we explore the design of technology specifically aimed at augmenting existing practices. Four concepts that favoured playfulness and engagement across generations were discussed in a workshop with eight people who took part in the initial field study. The importance of being connected and spending time
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Journal of The American Society for Information Science and Technology, 2006
A novel and complex form of information access is cross-language information retrieval: searching... more A novel and complex form of information access is cross-language information retrieval: searching for texts written in foreign languages based on native language queries. Although the underlying technology for achieving such a search is relatively well understood, the appropriate interface design is not. The authors present three user evaluations undertaken during the iterative design of Clarity, a cross-language retrieval system for low-density languages, and shows how the user-interaction design evolved depending on the results of usability tests. The first test was instrumental to identify weaknesses in both functionalities and interface; the second was run to determine if query translation should be shown or not; the final was a global assessment and focused on user satisfaction criteria. Lessons were learned at every stage of the process leading to a much more informed view of what a cross-language retrieval system should offer to users.
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User Modeling and User-adapted Interaction, 2006
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The process of document annotation for the Semantic Web is complex and time consuming, as it requ... more The process of document annotation for the Semantic Web is complex and time consuming, as it requires a great deal of manual annotation. Information extraction from texts (IE) is a technology used by some very recent systems for reducing the burden of annotation. The integration of IE systems in annotation tools is quite a new development and there is still the necessity of thinking the impact of the IE system on the whole annotation process. In this paper we initially discuss a number of requirements for the use of IE as support for annotation. Then we present and discuss a model of interaction that addresses such issues and Melita, an annotation framework that implements a methodology for active annotation for the Semantic Web based on IE. Finally we present an experiment that quantifies the gain in using IE as support to human annotators.
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IntroductionIn an &am... more IntroductionIn an "ideal guided visit" to a space (as an exhibition, a museum, an archaeologicalsite, a city, and so on) what a visitor would like to have is a flexiblecompanion that helps him in visiting the museum or town as an informationspace. Of course museums or exhibitions (or towns) are physically organizedin some rigid way. When organizing the physical layout
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New Review of Hypermedia and Multimedia / Hypermedia, 1998
Abstract This paper describes a portable system lo support a new way of visiting cultural and tou... more Abstract This paper describes a portable system lo support a new way of visiting cultural and tourist sites. The perspective is that the visitor moves in a physical space like a museum, while seeking information and guidance through the use of a hand-held electronic guide. ...
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New Review of Hypermedia and Multimedia / Hypermedia, 1998
Abstract This paper describes a portable system lo support a new way of visiting cultural and tou... more Abstract This paper describes a portable system lo support a new way of visiting cultural and tourist sites. The perspective is that the visitor moves in a physical space like a museum, while seeking information and guidance through the use of a hand-held electronic guide. ...
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Personal and Ubiquitous Computing, 2001
One of the hardest points in context-aware applications is deciding what reactions a system has t... more One of the hardest points in context-aware applications is deciding what reactions a system has to a certain context. In this paper, we introduce an architecture used in two context-aware museum guides. We discuss how the context is modelled and we briefly present a rule-based mechanism to trigger system actions. A rule-based system offers the flexibility required to be context-sensitive in the broadest sense since many context features can be considered and evaluated at the same time. This architecture is very flexible and easily supports a fast prototyping approach.
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Papers by Daniela Petrelli