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SODA
1996
ACM
101views Algorithms» more  SODA 1996»
13 years 8 months ago
Randomized Robot Navigation Algorithms
We consider the problem faced by a mobile robot that has to reach a given target by traveling through an unmapped region in the plane containing oriented rectangular obstacles. We...
Piotr Berman, Avrim Blum, Amos Fiat, Howard J. Kar...
WSDM
2009
ACM
178views Data Mining» more  WSDM 2009»
14 years 2 months ago
User Browsing Graph: Structure, Evolution and Application
This paper focuses on ‘user browsing graph’ which is constructed with users’ click-through behavior modeled with Web access logs. User browsing graph has recently been adopt...
Yiqun Liu, Min Zhang, Shaoping Ma, Liyun Ru
CDC
2009
IEEE
14 years 7 days ago
Metrics on the space of bounded Keplerian orbits and space situational awareness
— A main difficulty for orbit determination of space debris is the correlation of tracks of data belonging to the same physical object. A sequence of optical measurements of an ...
Jared M. Maruskin, Daniel J. Scheeres
ICDT
1999
ACM
154views Database» more  ICDT 1999»
13 years 11 months ago
Databases for Tracking Mobile Units in Real Time
Abstract. In this paper we consider databases representing information about moving objects (e.g. vehicles), particularly their location. We address the problems of updating and qu...
Ouri Wolfson, Liqin Jiang, A. Prasad Sistla, Sam C...
TRUST
2009
Springer
14 years 2 months ago
Remote Attestation of Attribute Updates and Information Flows in a UCON System
UCON is a highly flexible and expressive usage control model which allows an object owner to specify detailed usage control policies to be evaluated on a remote platform. Assuranc...
Mohammad Nauman, Masoom Alam, Xinwen Zhang, Tamlee...