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» Algorithms for Categorical Equivalence
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ISAAC
2003
Springer
104views Algorithms» more  ISAAC 2003»
15 years 11 months ago
Deterministic Algorithm for the t-Threshold Set Problem
Given k sorted arrays, the t-Threshold problem, which is motivated by indexed search engines, consists of finding the elements which are present in at least t of the arrays. We pr...
Jérémy Barbay, Claire Kenyon
ACL
2006
15 years 7 months ago
An Improved Redundancy Elimination Algorithm for Underspecified Representations
We present an efficient algorithm for the redundancy elimination problem: Given an underspecified semantic representation (USR) of a scope ambiguity, compute an USR with fewer mut...
Alexander Koller, Stefan Thater
DAM
2006
79views more  DAM 2006»
15 years 5 months ago
A simple expected running time analysis for randomized "divide and conquer" algorithms
There are many randomized "divide and conquer" algorithms, such as randomized Quicksort, whose operation involves partitioning a problem of size n uniformly at random int...
Brian C. Dean
IPL
2007
95views more  IPL 2007»
15 years 5 months ago
Optimal implementations of UPGMA and other common clustering algorithms
In this work we consider hierarchical clustering algorithms, such as UPGMA, which follow the closest-pair joining scheme. We survey optimal O(n2)-time implementations of such algo...
Ilan Gronau, Shlomo Moran
ICIAP
2007
ACM
16 years 6 months ago
Topology Preserving Marching Cubes-like Algorithms on the Face-Centered Cubic Grid
The well-known marching cubes algorithm is modified to apply to the face-centered cubic (fcc) grid. Thus, the local configurations that are considered when extracting the local su...
Robin Strand, Peer Stelldinger