4078 search results - page 70 / 816 » The COMPASS Location System |
137
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MOBISYS
2007
ACM
16 years 3 months ago
2007
ACM
The broadcast and tetherless nature of wireless networks and the widespread deployment of Wi-Fi hotspots makes it easy to remotely locate a user by observing her wireless signals....
148
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NTMS
2008
IEEE
15 years 10 months ago
2008
IEEE
—We propose an access control model that extends RBAC (Role-Based Access Control) to take time and location into account, and use term rewriting systems to specify access control...
131
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AINA
2009
IEEE
15 years 9 months ago
2009
IEEE
—The paper first discusses motivations why taking into account location information in authentication and access control is important. The paper then surveys current approaches t...
134
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ECCV
1992
Springer
15 years 8 months ago
1992
Springer
Abstract. This paper presents viewpoint-dependent constraints that relate image features such as t-junctions and inflections to the pose of curved 3D objects. These constraints can...
151
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SSDBM
2008
IEEE
15 years 10 months ago
2008
IEEE
Abstract. Existing approaches to the management of streaming positional updates generally assume that all active user requests have equal importance, ignoring the possibility of an...