25189 search results - page 4853 / 5038 » Information Systems Frontiers |
182
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WWW
2005
ACM
16 years 7 months ago
2005
ACM
Computer users are asked to generate, keep secret, and recall an increasing number of passwords for uses including host accounts, email servers, e-commerce sites, and online finan...
174
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WWW
2005
ACM
16 years 7 months ago
2005
ACM
Web performance measurements and availability tests have been carried out using a variety of infrastructures over the last several years. Disruptions in the Internet can lead to W...
187
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WWW
2005
ACM
16 years 7 months ago
2005
ACM
A fair contract signing protocol allows two potentially mistrusted parities to exchange their commitments (i.e., digital signatures) to an agreed contract over the Internet in a f...
196
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WWW
2004
ACM
16 years 7 months ago
2004
ACM
For the manual semantic markup of documents to become widespread, users must be able to express annotations that conform to ontologies (or schemas) that have shared meaning. Howev...
168
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WWW
2003
ACM
16 years 7 months ago
2003
ACM
We propose two new tools to address the evolution of hyperlinked corpora. First, we define time graphs to extend the traditional notion of an evolving directed graph, capturing li...