9588 search results - page 419 / 1918 » Service Value Networks |
168
Voted
ATAL
2005
Springer
16 years 7 days ago
2005
Springer
Context-aware information systems for mobile users have to cope with a variety of requirements in order to be able to provide an added value that goes beyond simply location-based...
202
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PET
2004
Springer
16 years 4 days ago
2004
Springer
There are a variety of well-known models for access control developed for purposes like formally modeling the access rights on files, databases, and web resources. However, the ex...
179
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ATAL
2008
Springer
15 years 8 months ago
2008
Springer
In this paper, we deal with the sequential decision making problem of agents operating in computational economies, where there is uncertainty regarding the trustworthiness of serv...
186
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USS
2010
15 years 4 months ago
2010
Reverse Turing tests, or CAPTCHAs, have become an ubiquitous defense used to protect open Web resources from being exploited at scale. An effective CAPTCHA resists existing mechan...
168
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ACNS
2006
Springer
16 years 23 days ago
2006
Springer
A coupon is an electronic data that represents the right to access a service provided by a service provider (e.g. gift certificates or movie tickets). Recently, a privacyprotectin...