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168
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SACMAT
2003
ACM
16 years 1 days ago
2003
ACM
This paper presents an approach that uses special purpose RBAC constraints to base certain access control decisions on context information. In our approach a context constraint is...
174
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DOLAP
2000
ACM
15 years 11 months ago
2000
ACM
With the use of data warehousing and online analytical processing (OLAP) for decision support applications new security issues arise. The goal of this paper is to introduce an OLA...
174
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CIKM
2000
Springer
15 years 11 months ago
2000
Springer
The complexity of deploying high-performance spatial structures in transactional DBMS environments has motivated researchers to experiment with the idea of reusing the effort inve...
164
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EEE
2004
IEEE
15 years 10 months ago
2004
IEEE
In this paper, we propose a new efficient and secure micro-payment scheme, named e-coupons, which can provide the users the facility of delegating their spending capability to oth...
200
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IC
2004
15 years 8 months ago
2004
Recent popularity of web-enabled mobile devices such as handheld devices and PDAs has made mobile Internet access very popular. However, considering the limitation of mobile devic...