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» Three-Clustering of Points in the Plane
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COMPGEOM
2007
ACM
13 years 11 months ago
A space-optimal data-stream algorithm for coresets in the plane
Given a point set P R2 , a subset Q P is an -kernel of P if for every slab W containing Q, the (1+)-expansion of W also contains P. We present a data-stream algorithm for mainta...
Pankaj K. Agarwal, Hai Yu
ESANN
2007
13 years 9 months ago
Estimation of tangent planes for neighborhood graph correction
Local algorithms for non-linear dimensionality reduction [1], [2], [3], [4], [5] and semi-supervised learning algorithms [6], [7] use spectral decomposition based on a nearest neig...
Karina Zapien Arreola, Gilles Gasso, Stépha...
DCC
1998
IEEE
13 years 7 months ago
Partial Unitals and Related Structures in Desarguesian Planes
It is shown that a partial unital with more than q √ q+1− √ q points in the Desarguesian plane of order q can be extended to a unital.
Simeon Ball
STACS
2007
Springer
14 years 1 months ago
Light Orthogonal Networks with Constant Geometric Dilation
An orthogonal spanner network for a given set of n points in the plane is a plane straight line graph with axis-aligned edges that connects all input points. We show that for any ...
Adrian Dumitrescu, Csaba D. Tóth
COMPGEOM
2009
ACM
14 years 2 months ago
Halving lines and measure concentration in the plane
Given a set of n points in the plane and a collection of k halving lines of P â„“1, . . . , â„“k indexed according to the increasing order of their slopes, we denote by d(â„“j, â„...
Rom Pinchasi