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WADS
2007
Springer
104views Algorithms» more  WADS 2007»
14 years 1 months ago
Faster Approximation of Distances in Graphs
Let G = (V, E) be an weighted undirected graph on n vertices and m edges, and let dG be its shortest path metric. We present two simple deterministic algorithms for approximating ...
Piotr Berman, Shiva Prasad Kasiviswanathan
TKDE
2010
151views more  TKDE 2010»
13 years 5 months ago
Dictionary-Based Compression for Long Time-Series Similarity
—Long time-series datasets are common in many domains, especially scientific domains. Applications in these fields often require comparing trajectories using similarity measure...
Willis Lang, Michael D. Morse, Jignesh M. Patel
SIAMCOMP
2008
124views more  SIAMCOMP 2008»
13 years 7 months ago
A Faster, Better Approximation Algorithm for the Minimum Latency Problem
We give a 7.18-approximation algorithm for the minimum latency problem that uses only O(n log n) calls to the prize-collecting Steiner tree (PCST) subroutine of Goemans and Willia...
Aaron Archer, Asaf Levin, David P. Williamson
WADS
1993
Springer
136views Algorithms» more  WADS 1993»
13 years 11 months ago
Balanced Search Trees Made Simple
Abstract. As a contribution to the recent debate on simple implementations of dictionaries, we present new maintenancealgorithms for balanced trees. In terms of code simplicity, ou...
Arne Andersson
SIGMOD
2009
ACM
213views Database» more  SIGMOD 2009»
14 years 7 months ago
Dictionary-based order-preserving string compression for main memory column stores
Column-oriented database systems [19, 23] perform better than traditional row-oriented database systems on analytical workloads such as those found in decision support and busines...
Carsten Binnig, Stefan Hildenbrand, Franz Fär...