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WSDM
2010
ACM
199views Data Mining» more  WSDM 2010»
14 years 5 months ago
A Sketch-Based Distance Oracle for Web-Scale Graphs
We study the fundamental problem of computing distances between nodes in large graphs such as the web graph and social networks. Our objective is to be able to answer distance que...
Atish Das Sarma, Sreenivas Gollapudi, Marc Najork,...
FOCS
2003
IEEE
14 years 26 days ago
Approximation Algorithms for Asymmetric TSP by Decomposing Directed Regular Multigraphs
A directed multigraph is said to be d-regular if the indegree and outdegree of every vertex is exactly d. By Hall’s theorem one can represent such a multigraph as a combination ...
Haim Kaplan, Moshe Lewenstein, Nira Shafrir, Maxim...
WEA
2007
Springer
117views Algorithms» more  WEA 2007»
14 years 1 months ago
Better Landmarks Within Reach
We study the real algorithm for the point-to-point shortest path problem. It combines A∗ search search, landmark-based lower bounds, and reach-based pruning. We suggest several ...
Andrew V. Goldberg, Haim Kaplan, Renato Fonseca F....
IWDC
2005
Springer
138views Communications» more  IWDC 2005»
14 years 1 months ago
Hierarchical Routing in Sensor Networks Using k-Dominating Sets
For a connected graph, representing a sensor network, distributed algorithms for the Set Covering Problem can be employed to construct reasonably small subsets of the nodes, calle...
Michael Q. Rieck, Subhankar Dhar
ALT
2007
Springer
14 years 4 months ago
Learning and Verifying Graphs Using Queries with a Focus on Edge Counting
We consider the problem of learning and verifying hidden graphs and their properties given query access to the graphs. We analyze various queries (edge detection, edge counting, sh...
Lev Reyzin, Nikhil Srivastava