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260
Voted
WADS
2009
Springer
378views Algorithms» more  WADS 2009»
15 years 10 months ago
Two for One: Tight Approximation of 2D Bin Packing
In this paper, we study the two-dimensional geometrical bin packing problem (2DBP): given a list of rectangles, provide a packing of all these into the smallest possible number of ...
Klaus Jansen, Lars Prädel, Ulrich M. Schwarz
148
Voted
WADS
2009
Springer
223views Algorithms» more  WADS 2009»
15 years 10 months ago
Fault Tolerant External Memory Algorithms
Abstract. Algorithms dealing with massive data sets are usually designed for I/O-efficiency, often captured by the I/O model by Aggarwal and Vitter. Another aspect of dealing with ...
Gerth Stølting Brodal, Allan Grønlun...
157
Voted
WADS
2009
Springer
243views Algorithms» more  WADS 2009»
15 years 10 months ago
Resolving Loads with Positive Interior Stresses
We consider the pair (pi, fi) as a force with two-dimensional direction vector fi applied at the point pi in the plane. For a given set of forces we ask for a non-crossing geometri...
Günter Rote, André Schulz
126
Voted
WADS
2009
Springer
240views Algorithms» more  WADS 2009»
15 years 10 months ago
Optimal Embedding into Star Metrics
David Eppstein, Kevin A. Wortman
139
Voted
WADS
2009
Springer
274views Algorithms» more  WADS 2009»
15 years 10 months ago
Approximating Transitive Reductions for Directed Networks
Abstract. We consider minimum equivalent digraph problem, its maximum optimization variant and some non-trivial extensions of these two types of problems motivated by biological an...
Piotr Berman, Bhaskar DasGupta, Marek Karpinski
154
Voted
WADS
2009
Springer
257views Algorithms» more  WADS 2009»
15 years 10 months ago
Rank-Balanced Trees
Since the invention of AVL trees in 1962, a wide variety of ways to balance binary search trees have been proposed. Notable are red-black trees, in which bottom-up rebalancing afte...
Bernhard Haeupler, Siddhartha Sen, Robert Endre Ta...
WADS
2009
Springer
256views Algorithms» more  WADS 2009»
15 years 10 months ago
Dynamic Graph Clustering Using Minimum-Cut Trees
Abstract. Algorithms or target functions for graph clustering rarely admit quality guarantees or optimal results in general. Based on properties of minimum-cut trees, a clustering ...
Robert Görke, Tanja Hartmann, Dorothea Wagner
244
Voted
WADS
2009
Springer
245views Algorithms» more  WADS 2009»
15 years 10 months ago
Online Square Packing
We analyze the problem of packing squares in an online fashion: Given an semi-infinite strip of width 1 and an unknown sequence of squares with side lengths in [0, 1] that arrive...
Sándor P. Fekete, Tom Kamphans, Nils Schwee...
WADS
2009
Springer
202views Algorithms» more  WADS 2009»
15 years 10 months ago
Minimal Locked Trees
Locked tree linkages have been known to exist in the plane since 1998, but it is still open whether they have a polynomial-time characterization. This paper examines the properties...
Brad Ballinger, David Charlton, Erik D. Demaine, M...
150
Voted
WADS
2009
Springer
268views Algorithms» more  WADS 2009»
15 years 10 months ago
Succinct Orthogonal Range Search Structures on a Grid with Applications to Text Indexing
We present a succinct representation of a set of n points on an n × n grid using n lg n + o(n lg n) bits3 to support orthogonal range counting in O(lg n/ lg lg n) time, and range ...
Prosenjit Bose, Meng He, Anil Maheshwari, Pat Mori...