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KDD
2007
ACM
168views Data Mining» more  KDD 2007»
16 years 5 months ago
Finding tribes: identifying close-knit individuals from employment patterns
We present a family of algorithms to uncover tribes--groups of individuals who share unusual sequences of affiliations. While much work inferring community structure describes lar...
Lisa Friedland, David Jensen
CCS
2007
ACM
15 years 9 months ago
Efficient policy analysis for administrative role based access control
Administrative RBAC (ARBAC) policies specify how Role-Based Access Control (RBAC) policies may be changed by each administrator. It is often difficult to fully understand the effe...
Scott D. Stoller, Ping Yang, C. R. Ramakrishnan, M...
KDD
2007
ACM
132views Data Mining» more  KDD 2007»
16 years 5 months ago
A scalable modular convex solver for regularized risk minimization
A wide variety of machine learning problems can be described as minimizing a regularized risk functional, with different algorithms using different notions of risk and different r...
Choon Hui Teo, Alex J. Smola, S. V. N. Vishwanatha...
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WSNA
2003
ACM
15 years 10 months ago
The coverage problem in a wireless sensor network
One fundamental issue in sensor networks is the coverage problem, which reflects how well a sensor network is monitored or tracked by sensors. In this paper, we formulate this pr...
Chi-Fu Huang, Yu-Chee Tseng
ICCV
2003
IEEE
16 years 7 months ago
Towards Gauge Invariant Bundle Adjustment: A Solution Based on Gauge Dependent Damping
Bundle ajustment is used to obtain accurate visual reconstructions by minimizing the reprojection error. The coordinate frame ambiguity, or more generality the gauge freedoms, has...
Adrien Bartoli