Largest and smallest convex hulls for imprecise points

M Löffler, M van Kreveld - Algorithmica, 2010 - Springer
Assume that a set of imprecise points is given, where each point is specified by a region in
which the point may lie. We study the problem of computing the smallest and largest …

Nearest-neighbor searching under uncertainty II

PK Agarwal, B Aronov, S Har-Peled… - ACM Transactions on …, 2016 - dl.acm.org
Nearest-neighbor search, which returns the nearest neighbor of a query point in a set of
points, is an important and widely studied problem in many fields, and it has a wide range of …

Shape fitting on point sets with probability distributions

M Löffler, JM Phillips - European symposium on algorithms, 2009 - Springer
We consider problems on data sets where each data point has uncertainty described by an
individual probability distribution. We develop several frameworks and algorithms for …

Delaunay triangulations of imprecise pointsin linear time after preprocessing

M Löffler, J Snoeyink - Proceedings of the twenty-fourth annual …, 2008 - dl.acm.org
An assumption of nearly all algorithms in computational geometry is that the input points are
given precisely, so it is interesting to ask what is the value of imprecise information about …

Convex hulls under uncertainty

PK Agarwal, S Har-Peled, S Suri, H Yıldız, W Zhang - Algorithmica, 2017 - Springer
We study the convex-hull problem in a probabilistic setting, motivated by the need to handle
data uncertainty inherent in many applications, including sensor databases, location-based …

The geometric stability of Voronoi diagrams with respect to small changes of the sites

D Reem - Proceedings of the twenty-seventh annual symposium …, 2011 - dl.acm.org
Voronoi diagrams appear in many areas in science and technology and have numerous
applications. They have been the subject of extensive investigation during the last decades …

Stochastic minimum spanning trees in Euclidean spaces

P Kamousi, TM Chan, S Suri - … of the Twenty-seventh Annual Symposium …, 2011 - dl.acm.org
We study the complexity of geometric minimum spanning trees under a stochastic model of
input: Suppose we are given a master set of points s1, s_2,..., sn in d-dimensional Euclidean …

[PDF][PDF] Query-competitive algorithms for computing with uncertainty

T Erlebach, M Hoffmann - Bulletin of EATCS, 2015 - smtp.eatcs.org
Motivated by real-life situations in which exact input data is not available initially but can be
obtained at a cost, one can consider the model of computing with uncertainty where the …

Preprocessing imprecise points for Delaunay triangulation: Simplified and extended

K Buchin, M Löffler, P Morin, W Mulzer - Algorithmica, 2011 - Springer
Suppose we want to compute the Delaunay triangulation of a set P whose points are
restricted to a collection ℛ of input regions known in advance. Building on recent work by …

Breast height diameter estimation from high-density airborne LiDAR data

A Bucksch, R Lindenbergh… - … and Remote Sensing …, 2013 - ieeexplore.ieee.org
High-density airborne light detection and ranging (LiDAR) data with point densities over 50
points/provide new opportunities, because previously inaccessible quantities of an …