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Publication
Timeliness for dynamic source selection in situated public displays
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Advisor(s)
Abstract(s)
Dynamic sources, which make regularly updated data available for use by other applications, are
increasingly a key enabling feature of the web. They are extensively used in all sorts of social media
applications where they are re-combined in multiple ways to generate new aggregate services. Public
situated displays are an emergent area where dynamic sources can also play a key role in providing situated
and frequently updated content. However, the specificities of public displays raise the need for automated
selection of the most relevant sources to present. This study addresses relevance from the perspective of
timeliness. We propose a timeliness model that supports the most common types of dynamic source. To
validate that model, we set an experiment with a public display exhibiting content from dynamic sources
and receiving from users feedback on its timeliness. The results from this experiment suggest a reasonable
match between our model and the users’ perspectives on timeliness. The results also show that the model is
able to make comparative calculations of timeliness for different types of dynamic source. These results
enable us to conclude that timeliness functions may help to significantly increase the relevance of content
automatically selected from dynamic sources.
Description
Keywords
Dynamic sources Information integration Timeliness Public displays Situated displays Social information systems Web information filtering and retrieval Web 2.0.
Pedagogical Context
Citation
RIBEIRO, F. Reinaldo; JOSÉ, Rui - Timeliness for dynamic source selection in situated public displays. In International Conference on Web Information Systems and Technologies, 5, Lisboa, 23-26 Março. Lisboa: INSTICC, 2009. p. 1-6