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» The Complexity of Unions of Disjoint Sets
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FOCS
2009
IEEE
14 years 2 months ago
Distance Oracles for Sparse Graphs
Abstract— Thorup and Zwick, in their seminal work, introduced the approximate distance oracle, which is a data structure that answers distance queries in a graph. For any integer...
Christian Sommer 0002, Elad Verbin, Wei Yu
DEBS
2008
ACM
13 years 8 months ago
Availability models for underlay aware overlay networks
Availability of an overlay network is a necessary condition for event delivery in event based systems. The availability of the overlay links depends on the underlying physical net...
Madhu Kumar SD, Umesh Bellur
VLDB
2007
ACM
130views Database» more  VLDB 2007»
14 years 8 months ago
A Simple and Efficient Estimation Method for Stream Expression Cardinalities
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
Aiyou Chen, Jin Cao, Tian Bu
EDBT
2008
ACM
122views Database» more  EDBT 2008»
14 years 7 months ago
Mining all frequent projection-selection queries from a relational table
In this paper we study the problem of mining all frequent queries in a given database table, a problem known to be intractable even for conjunctive queries. We restrict our attent...
Tao-Yuan Jen, Dominique Laurent, Nicolas Spyratos
ICCAD
2004
IEEE
94views Hardware» more  ICCAD 2004»
14 years 4 months ago
Timing macro-modeling of IP blocks with crosstalk
With the increase of design complexities and the decrease of minimal feature sizes, IP reuse is becoming a common practice while crosstalk is becoming a critical issue that must b...
Ruiming Chen, Hai Zhou