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133
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WWW
2009
ACM
16 years 6 months ago
2009
ACM
We present a new CAPTCHA which is based on identifying an image's upright orientation. This task requires analysis of the often complex contents of an image, a task which hum...
156
Voted
WWW
2009
ACM
16 years 6 months ago
2009
ACM
Web 2.0 technologies have enabled more and more people to freely comment on different kinds of entities (e.g. sellers, products, services). The large scale of information poses th...
161
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WWW
2006
ACM
16 years 6 months ago
2006
ACM
Tags have recently become popular as a means of annotating and organizing Web pages and blog entries. Advocates of tagging argue that the use of tags produces a 'folksonomy&#...
145
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WWW
2006
ACM
16 years 6 months ago
2006
ACM
We consider the problem of visualizing the evolution of tags within the Flickr (flickr.com) online image sharing community. Any user of the Flickr service may append a tag to any ...
161
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WWW
2006
ACM
16 years 6 months ago
2006
ACM
Wrapping is the process of navigating a data source, semiautomatically extracting data and transforming it into a form suitable for data processing applications. There are current...