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www.cwi.nl
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pubs.geoscienceworld.org
Abstract. The eruption of the Campanian Ignimbrite at ca. 40 ka coincided with the final decline of Neanderthals in Europe. Environmental stress |
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www.nature.com
Real-world networks are often claimed to be scale free,meaning that the fraction of nodes with degree k follows a power law k?, a pattern with broad implications for the structure and dynamics of complex systems. However, the universality of scale-free networks remains controversial. Here, we organize different definitions of scale-free networks and construct a severe test of their empirical prevalence using state-of-the-art statistical tools applied to nearly 1000 social, biological, technological, tra... |
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rjlipton.com
On the complexity of counting exactly and approximately Larry Stockmeyer was one of the great theorists, who worked on areas as diverse as lower bounds on logical theories, computational complexity, distributed computing, algorithms, and many other areas. He passed away in 2004, and is terribly missed by all who knew him. See Lance Fortnow's wonderful... |
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