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ALGORITHMICA
2010
75views more  ALGORITHMICA 2010»
13 years 8 months ago
In-Place Algorithms for Computing (Layers of) Maxima
We describe space-efficient algorithms for solving problems related to finding maxima among points in two and three dimensions. Our algorithms run in optimal O(n log n) time and oc...
Henrik Blunck, Jan Vahrenhold
SODA
1992
ACM
109views Algorithms» more  SODA 1992»
13 years 9 months ago
New Algorithms for Minimum Area k-gons
Given a set P of n points in the plane, we wish to find a set Q P of k points for which the convex hull conv(Q) has the minimum area. We solve this, and the related problem of fi...
David Eppstein
ICALP
2007
Springer
14 years 16 days ago
In-Place Suffix Sorting
Given string T = T[1, . . . , n], the suffix sorting problem is to lexicographically sort the suffixes T[i, . . . , n] for all i. This problem is central to the construction of suf...
Gianni Franceschini, S. Muthukrishnan
SIAMCOMP
2010
172views more  SIAMCOMP 2010»
13 years 3 months ago
More Algorithms for All-Pairs Shortest Paths in Weighted Graphs
In the first part of the paper, we reexamine the all-pairs shortest paths (APSP) problem and present a new algorithm with running time O(n3 log3 log n/ log2 n), which improves all...
Timothy M. Chan
APPROX
2007
Springer
102views Algorithms» more  APPROX 2007»
14 years 2 months ago
Hardness of Embedding Metric Spaces of Equal Size
Abstract. We study the problem embedding an n-point metric space into another n-point metric space while minimizing distortion. We show that there is no polynomial time algorithm t...
Subhash Khot, Rishi Saket