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» On Bounds for the k-Partitioning of Graphs
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STOC
2009
ACM
155views Algorithms» more  STOC 2009»
15 years 10 months ago
A nearly optimal oracle for avoiding failed vertices and edges
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
Aaron Bernstein, David R. Karger
EDBT
2006
ACM
120views Database» more  EDBT 2006»
15 years 10 months ago
Query Planning in the Presence of Overlapping Sources
Navigational queries on Web-accessible life science sources pose unique query optimization challenges. The objects in these sources are interconnected to objects in other sources, ...
Jens Bleiholder, Samir Khuller, Felix Naumann, Lou...
FOCS
2009
IEEE
15 years 4 months ago
KKL, Kruskal-Katona, and Monotone Nets
We generalize the Kahn-Kalai-Linial (KKL) Theorem to random walks on Cayley and Schreier graphs, making progress on an open problem of Hoory, Linial, and Wigderson. In our general...
Ryan O'Donnell, Karl Wimmer
INFOCOM
2009
IEEE
15 years 4 months ago
Minimum Maximum Degree Publish-Subscribe Overlay Network Design
—Designing an overlay network for publish/subscribe communication in a system where nodes may subscribe to many different topics of interest is of fundamental importance. For sca...
Melih Onus, Andréa W. Richa
AAIM
2009
Springer
101views Algorithms» more  AAIM 2009»
15 years 4 months ago
Three Results on Frequency Assignment in Linear Cellular Networks
In the frequency assignment problem we are given a graph representing a wireless network and a sequence of requests, where each request is associated with a vertex. Each request h...
Marek Chrobak, Jiri Sgall