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» On Approximation Lower Bounds for TSP with Bounded Metrics
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DEXA
2009
Springer
222views Database» more  DEXA 2009»
16 years 21 days ago
On Index-Free Similarity Search in Metric Spaces
Metric access methods (MAMs) serve as a tool for speeding similarity queries. However, all MAMs developed so far are index-based; they need to build an index on a given database. T...
Tomás Skopal, Benjamin Bustos
ICALP
2004
Springer
15 years 11 months ago
Linear and Branching Metrics for Quantitative Transition Systems
Abstract. We extend the basic system relations of trace inclusion, trace equivalence, simulation, and bisimulation to a quantitative setting in which propositions are interpreted n...
Luca de Alfaro, Marco Faella, Mariëlle Stoeli...
MASS
2010
15 years 4 months ago
You can't get there from here: Sensor scheduling with refocusing delays
We study a problem in which a single sensor is scheduled to observe sites periodically, motivated by applications in which the goal is to maintain up-to-date readings for all the o...
Yosef Alayev, Amotz Bar-Noy, Matthew P. Johnson, L...
ISAAC
2005
Springer
106views Algorithms» more  ISAAC 2005»
15 years 11 months ago
Distance Labeling in Hyperbolic Graphs
A graph G is δ-hyperbolic if for any four vertices u, v, x, y of G the two larger of the three distance sums dG(u, v) + dG(x, y), dG(u, x) + dG(v, y), dG(u, y) + dG(v, x) differ b...
Cyril Gavoille, Olivier Ly
BIRTHDAY
2009
Springer
15 years 10 months ago
Minimizing Average Flow-Time
We consider the problem of minimizing average flow time on multiple machines when each job can be assigned only to a specified subset of the machines. This is a special case of sc...
Naveen Garg