Parallel relaxed and extrapolated algorithms for computing PageRank

In this paper, parallel Relaxed and Extrapolated algorithms based on the Power method for accelerating the PageRank computation are presented. Different parallel implementations of the Power method and the proposed variants are analyzed using different data distribution strategies. The reported experiments show the behavior and effectiveness of the designed algorithms for realistic test data using either OpenMP, MPI or an hybrid OpenMP/MPI approach to exploit the benefits of shared memory inside the nodes of current SMP supercomputers.

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian, by Nathaniel Lord Britton ... and Hon. Addison Brown ...

v. 1

A parallel currency for Greece. CEPS High-level Brief, 20 May 2015

Greece and its creditors seem to be engaged in a game of chicken: both sides expect the other to yield at the last moment. The game will almost certainly end with each side deviating somewhat from its preferred course. This High-Level Brief discusses how a parallel currency could contribute to a resolution of the conflict. In the author's view, it would be the least-bad option for both sides among three possible options on the table.