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CSDA
2010
98views more  CSDA 2010»
15 years 21 days ago
Design-based estimation for geometric quantiles with application to outlier detection
Geometric quantiles are investigated using data collected from a complex survey. Geometric quantiles are an extension of univariate quantiles in a multivariate set-up that uses th...
Mohamed Chaouch, Camelia Goga
109
Voted
STOC
1996
ACM
132views Algorithms» more  STOC 1996»
15 years 4 months ago
Approximability and Nonapproximability Results for Minimizing Total Flow Time on a Single Machine
We consider the problem of scheduling n jobs that are released over time on a single machine in order to minimize the total ow time. This problem is well-known to be NPcomplete, a...
Hans Kellerer, Thomas Tautenhahn, Gerhard J. Woegi...
ISAAC
2005
Springer
111views Algorithms» more  ISAAC 2005»
15 years 6 months ago
Multi-directional Width-Bounded Geometric Separator and Protein Folding
We introduce the concept of multi-directional width-bounded geometric separator and get improved separator for the grid graph, which improves exact algorithm for the protein foldin...
Bin Fu, Sorinel Adrian Oprisan, Lizhe Xu
105
Voted
SIBGRAPI
2000
IEEE
15 years 5 months ago
On Estimating Local Geometric Properties of Intersection Curves
This paper presents a simple and robust algorithm for estimating the local geometric properties of intersection curves, namely the tangent, normal, binormal, curvature and torsion ...
Shin-Ting Wu, Osmar Aléssio, Sueli I. Rodri...
76
Voted
SIAMCOMP
1998
86views more  SIAMCOMP 1998»
15 years 8 days ago
Exact Learning of Discretized Geometric Concepts
We first present an algorithm that uses membership and equivalence queries to exactly identify a discretized geometric concept defined by the union of m axis-parallel boxes in d-...
Nader H. Bshouty, Paul W. Goldberg, Sally A. Goldm...