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WWW
2008
ACM
14 years 11 months ago
2008
ACM
It is crucial for a web crawler to distinguish between ephemeral and persistent content. Ephemeral content (e.g., quote of the day) is usually not worth crawling, because by the t...
KDD
2008
ACM
14 years 11 months ago
2008
ACM
Social networks are of interest to researchers in part because they are thought to mediate the flow of information in communities and organizations. Here we study the temporal dyn...
KDD
2007
ACM
14 years 11 months ago
2007
ACM
Characterising the differences between two databases is an often occurring problem in Data Mining. Detection of change over time is a prime example, comparing databases from two b...
KDD
2006
ACM
14 years 11 months ago
2006
ACM
In this paper, we consider the evolution of structure within large online social networks. We present a series of measurements of two such networks, together comprising in excess ...
IUI
2009
ACM
14 years 7 months ago
2009
ACM
In this study, we argue that modality planning in multimodal presentation systems needs to consider the modality characteristics at not only the presentational level but also the ...