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» A Lower Bound for the Shortest Path Problem
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PODC
2004
ACM
15 years 5 months ago
On the expected payment of mechanisms for task allocation
We study a representative task allocation problem called shortest paths: Let G be a graph in which the edges are owned by self interested agents. The cost of each edge is privatel...
Artur Czumaj, Amir Ronen
MST
2002
152views more  MST 2002»
14 years 11 months ago
Average-Case Analysis of Greedy Packet Scheduling
We study the average number of delays suffered by packets routed using greedy (work conserving) scheduling policies. We obtain tight bounds on the worst-case average number of del...
Zvi Lotker, Boaz Patt-Shamir
ICCSA
2004
Springer
15 years 5 months ago
A Robust and Fast Algorithm for Computing Exact and Approximate Shortest Visiting Routes
Abstract. Given a simple n-sided polygon in the plane with a boundary partitioned into subchains some of which are convex and colored, we consider the following problem: Which is t...
Håkan Jonsson
WADS
2005
Springer
111views Algorithms» more  WADS 2005»
15 years 5 months ago
On Geometric Dilation and Halving Chords
Let G be an embedded planar graph whose edges may be curves. The detour between two points, p and q (on edges or vertices) of G, is the ratio between the shortest path in G between...
Adrian Dumitrescu, Annette Ebbers-Baumann, Ansgar ...
FOCS
1993
IEEE
15 years 3 months ago
An On-Line Algorithm for Improving Performance in Navigation
We consider the following scenario. A point robot is placed at some start location ¡ in a 2dimensional scene containing oriented rectangular obstacles. The robot must repeatedly ...
Avrim Blum, Prasad Chalasani