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COMBINATORICA
2007
129views more  COMBINATORICA 2007»
14 years 12 months ago
Birth control for giants
The standard Erd˝os-Renyi model of random graphs begins with n isolated vertices, and at each round a random edge is added. Parametrizing n 2 rounds as one time unit, a phase tra...
Joel H. Spencer, Nicholas C. Wormald
JSYML
2008
95views more  JSYML 2008»
14 years 11 months ago
Examples of non-locality
free but not Whitehead Abelian groups to construct Abstract Elementary Classes (AEC) which satisfy the amalgamation property but fail various conditions on the locality of Galois-...
John T. Baldwin, Saharon Shelah
MST
2006
136views more  MST 2006»
14 years 11 months ago
Simple Efficient Load-Balancing Algorithms for Peer-to-Peer Systems
Load balancing is a critical issue for the efficient operation of peerto-peer networks. We give two new load-balancing protocols whose provable performance guarantees are within a...
David R. Karger, Matthias Ruhl
SIGECOM
2008
ACM
131views ECommerce» more  SIGECOM 2008»
14 years 11 months ago
Truthful germs are contagious: a local to global characterization of truthfulness
We study the question of how to easily recognize whether a social unction f from an abstract type space to a set of outcomes is truthful, i.e. implementable by a truthful mechanis...
Aaron Archer, Robert Kleinberg
IJSWIS
2007
138views more  IJSWIS 2007»
14 years 11 months ago
Using a Natural Language Understanding System to Generate Semantic Web Content
We describe our research on automatically generating rich semantic annotations of text and making it available on the Semantic Web. In particular, we discuss the challenges involv...
Akshay Java, Sergei Nirenburg, Marjorie McShane, T...