5205 search results - page 790 / 1041 » Tilings and model theory |
269
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ICDT
2009
ACM
16 years 7 months ago
2009
ACM
We continue the study of approximating the number of distinct elements in a data stream of length n to within a (1? ) factor. It is known that if the stream may consist of arbitra...
168
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WWW
2008
ACM
16 years 7 months ago
2008
ACM
Most models for online advertising assume that an advertiser's value from winning an ad auction, which depends on the clickthrough rate or conversion rate of the advertisemen...
181
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WWW
2006
ACM
16 years 7 months ago
2006
ACM
The mechanisms for personalisation used in web applications are currently the subject of much debate amongst researchers from many diverse subject areas. One of the most contempor...
187
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WWW
2004
ACM
16 years 7 months ago
2004
ACM
This paper investigates how the vision of the Semantic Web can be carried over to the realm of email. We introduce a general notion of semantic email, in which an email message co...
196
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MOBIHOC
2009
ACM
16 years 7 months ago
2009
ACM
In this paper, we present a Gaussian mixture model based approach to capture the spatial characteristics of any target signal in a sensor network, and further propose a temporally...