73,052 research outputs found
On Some Recent Ideas on the Proton Radius Puzzle and Lepton Anomalous Magnetic Moments
We discuss recent suggestions on the resolution of the proton radius puzzle
put forward in [1,2] and discovery of a nonperturbative quantum-electrodynamic
contribution of order to lepton anomalous magnetic moments
announced in [3,4]. We demonstrate that the ideas of [1, 2] do not resolve the
proton radius puzzle. We explain why the nonperturbative correction calculated
in [3,4] does not exist.Comment: 10 pages, 2 figure
On statistics, computation and scalability
How should statistical procedures be designed so as to be scalable
computationally to the massive datasets that are increasingly the norm? When
coupled with the requirement that an answer to an inferential question be
delivered within a certain time budget, this question has significant
repercussions for the field of statistics. With the goal of identifying
"time-data tradeoffs," we investigate some of the statistical consequences of
computational perspectives on scability, in particular divide-and-conquer
methodology and hierarchies of convex relaxations.Comment: Published in at http://dx.doi.org/10.3150/12-BEJSP17 the Bernoulli
(http://isi.cbs.nl/bernoulli/) by the International Statistical
Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm
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