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SIAMDM
2010
136views more  SIAMDM 2010»
12 years 11 months ago
Obnoxious Centers in Graphs
We consider the problem of finding obnoxious centers in graphs. For arbitrary graphs with n vertices and m edges, we give a randomized algorithm with O(n log2 n + m log n) expecte...
Sergio Cabello, Günter Rote
SIAMCOMP
2000
118views more  SIAMCOMP 2000»
13 years 4 months ago
Constructive, Deterministic Implementation of Shared Memory on Meshes
This paper describes a scheme to implement a shared address space of size m on an n-node mesh, with m polynomial in n, where each mesh node hosts a processor and a memory module. A...
Andrea Pietracaprina, Geppino Pucci, Jop F. Sibeyn
IPL
2007
101views more  IPL 2007»
13 years 4 months ago
Adjacency queries in dynamic sparse graphs
We deal with the problem of maintaining a dynamic graph so that queries of the form “is there an edge between u and v?” are processed fast. We consider graphs of bounded arbor...
Lukasz Kowalik
SWAT
2010
Springer
270views Algorithms» more  SWAT 2010»
13 years 9 months ago
An O(log log n)-Competitive Binary Search Tree with Optimal Worst-Case Access Times
We present the zipper tree, the first O(log log n)-competitive online binary search tree that performs each access in O(log n) worst-case time. This shows that for binary search ...
Prosenjit Bose, Karim Douïeb, Vida Dujmovic, ...
FOCS
2007
IEEE
13 years 10 months ago
Strongly History-Independent Hashing with Applications
We present a strongly history independent (SHI) hash table that supports search in O(1) worst-case time, and insert and delete in O(1) expected time using O(n) data space. This ma...
Guy E. Blelloch, Daniel Golovin