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NearLinear Approximation Algorithms for Geometric Hitting Sets
 SCG'09
, 2009
"... Given a set system (X, R), the hitting set problem is to find a smallestcardinality subset H ⊆ X, with the property that each range R ∈ R has a nonempty intersection with H. We present nearlinear time approximation algorithms for the hitting set problem, under the following geometric settings: (i ..."
Abstract

Cited by 2 (1 self)
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Given a set system (X, R), the hitting set problem is to find a smallestcardinality subset H ⊆ X, with the property that each range R ∈ R has a nonempty intersection with H. We present nearlinear time approximation algorithms for the hitting set problem, under the following geometric settings: (i) R is a set of planar regions with small union complexity. (ii) R is a set of axisparallel drectangles in R d. In both cases X is either the entire ddimensional space or a finite set of points in dspace. The approximation factors yielded by the algorithm are small; they are either the same as or within an O(log n) factor of the best factors known to be computable in polynomial time.
Noname manuscript No. (will be inserted by the editor) Learning Optimal Metric for Image Alignment
"... Abstract Image alignment has been a long standing problem ..."
Vis Comput DOI 10.1007/s0037101106450 ORIGINAL ARTICLE
, 2011
"... Creating building ground plans via robust Kway union A step toward largescale simulation in urban environment ..."
Abstract
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Creating building ground plans via robust Kway union A step toward largescale simulation in urban environment