Stefano De Sabbata

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The relevance of geographic information has become an emerging problem in geographic information science due to an enormous increase in volumes of data at high spatial, temporal, and semantic resolution, because of ever faster rates of new data capturing. At the same time, it is not clear whether the concept of relevance developed in information science and(More)
In spatial thinking (thus, in solving many geographic tasks), time is a fundamental element. This has been broadly acknowledged and demonstrated in geographic information science literature for when studying human activities in physical space, or when assessing the environmental impact of geographic processes, temporal aspect is critically important(More)
Wikipedia is one of the largest platforms based on the concept of asynchronous, distributed, collaborative work. A systematic collaborative exploration and assessment of Wik-ipedia content and coverage is however still largely missing. On the one hand editors routinely perform quality and coverage control of individual articles, while on the other hand(More)
Geographic relevance aims to assess the relevance of physical entities (e.g., shops and museums) in geographic space for a mobile user in a given context, thereby shifting the focus from the digital world (the realm of classical information retrieval) to the physical world. We study the elicitation of geographic relevance criteria by means of both a(More)
Geographic information is increasingly used in mobile contexts. Mobility constrains several aspects of this mobile usage, such as limited screen estate, number of desired interactions, or availability due to battery time. As a consequence designers and developers of mobile geographic applications strive to reduce the amount of information delivered to users(More)
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