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WEA
2007
Springer
74views Algorithms» more  WEA 2007»
14 years 5 months ago
Landmark-Based Routing in Dynamic Graphs
Many speed-up techniques for route planning in static graphs exist, only few of them are proven to work in a dynamic scenario. Most of them use preprocessed information, which has ...
Daniel Delling, Dorothea Wagner
WEA
2007
Springer
98views Algorithms» more  WEA 2007»
14 years 5 months ago
An Alternative Ranking Problem for Search Engines
Corinna Cortes, Mehryar Mohri, Ashish Rastogi
WEA
2007
Springer
112views Algorithms» more  WEA 2007»
14 years 5 months ago
Crossing Minimization in Weighted Bipartite Graphs
Given a bipartite graph G = (L0, L1, E) and a fixed ordering of the nodes in L0, the problem of finding an ordering of the nodes in L1 that minimizes the number of crossings has ...
Olca A. Çakiroglu, Cesim Erten, Ömer K...
WEA
2007
Springer
158views Algorithms» more  WEA 2007»
14 years 5 months ago
A Primal Branch-and-Cut Algorithm for the Degree-Constrained Minimum Spanning Tree Problem
The degree-constrained minimum spanning tree (DCMST) is relevant in the design of networks. It consists of finding a spanning tree whose nodes do not exceed a given maximum degree...
Markus Behle, Michael Jünger, Frauke Liers
WEA
2007
Springer
111views Algorithms» more  WEA 2007»
14 years 5 months ago
Vertex Cover Approximations on Random Graphs
Abstract. The vertex cover problem is a classical NP-complete problem for which the best worst-case approximation ratio is 2− o(1). In this paper, we use a collection of simple g...
Eyjolfur Asgeirsson, Clifford Stein
WEA
2007
Springer
107views Algorithms» more  WEA 2007»
14 years 5 months ago
Trunk Packing Revisited
For trunk packing problems only few approximation schemes are known, mostly designed for the European standard DIN 70020 [6] with equally sized boxes [8, 9, 11, 12]. In this paper ...
Ernst Althaus, Tobias Baumann, Elmar Schömer,...
WDAG
2007
Springer
86views Algorithms» more  WDAG 2007»
14 years 5 months ago
Optimal On-Line Colorings for Minimizing the Number of ADMs in Optical Networks
We consider the problem of minimizing the number of ADMs in optical networks. All previous theoretical studies of this problem dealt with the off-line case, where all the lightpat...
Mordechai Shalom, Prudence W. H. Wong, Shmuel Zaks
WDAG
2007
Springer
92views Algorithms» more  WDAG 2007»
14 years 5 months ago
Self-stabilizing Counting in Mobile Sensor Networks with a Base Station
Abstract. Distributed computing must adapt its techniques to networks of mobile agents. Indeed, we are facing new problems like the small size of memory and the lack of computation...
Joffroy Beauquier, Julien Clement, Stéphane...
WDAG
2007
Springer
127views Algorithms» more  WDAG 2007»
14 years 5 months ago
A Distributed Maximal Scheduler for Strong Fairness
Abstract. Weak fairness guarantees that if an action is continuously enabled, it is executed infinitely often. Strong fairness, on the other hand, guarantees that actions that are...
Matthew Lang, Paolo A. G. Sivilotti
WDAG
2007
Springer
125views Algorithms» more  WDAG 2007»
14 years 5 months ago
Approximating Wardrop Equilibria with Finitely Many Agents
We study adaptive routing algorithms in a round-based model. Suppose we are given a network equipped with load-dependent latency functions on the edges and a set of commodities eac...
Simon Fischer, Lars Olbrich, Berthold Vöcking