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Characterisation of zero trace functions in variable exponent Sobolev spaces
http://www.statisticsviews.com/details/journalArticle/10515975/CharacterisationofzerotracefunctionsinvariableexponentSobolevspaces.html
Abstract
It is well known that if u belongs to the Sobolev space
W
1
,
p
(
Ω
)
, where Ω is an open subset of
...]]>
20170427T19:19:42Z

Contribution to the discussion of ‘“A critical evaluation of the current <i xmlns="http://www.wiley.com/namespaces/wiley">p</i> ‐value controversy”’
http://www.statisticsviews.com/details/journalArticle/10515974/ContributiontothediscussionofAcriticalevaluationofthecurrentpvaluec.html
I pick up a very few points of minor disagreement with Stefan Wellek's comprehensive review of P‐values in this journal. I conclude that P‐values have a limited function in statistical inference but can nevertheless have their uses.]]>
20170427T19:08:36Z

Call for papers for Environmetrics special issue
http://www.statisticsviews.com/details/news/10515795/CallforpapersforEnvironmetricsspecialissue.html
Environmetrics is issuing a Call for Papers for a Special Issue on Statistics for Climate Change and the Environment.
There are two main facets of climate change and the environment to which novel statistical techniques can contribute: i: causes and forcing factors of climate change; and ii: consequences and impact assessment. Environmental statistics plays a vital role in identifying, evaluating and understanding both of these perspectives and the intent of this special issue in Environmetrics is to...]]>
20170427T13:57:00Z

A model for solving incompatible fuzzy goal programming: an application to portfolio selection
http://www.statisticsviews.com/details/journalArticle/10514618/Amodelforsolvingincompatiblefuzzygoalprogramminganapplicationtoportfo.html
Abstract
For many fuzzy goal programming (GP) approaches, in order to build the membership functions of fuzzy aspiration levels, a
tolerance threshold for each one of them should be determined. In this paper, we address the case in which the decision maker
proposes incompatible thresholds, which could lead to an infeasible problem. We propose an alternative algebraic formulation
of the membership functions, which allows us to...]]>
20170426T12:10:56Z

Association models in the weighted log ratio analysis for rates
http://www.statisticsviews.com/details/journalArticle/10514621/Associationmodelsintheweightedlogratioanalysisforrates.html
Summary
In this paper we consider Goodman's association models and weighted log ratio analysis (LRA). In particular, by combining
these two methods, we obtain different weighted log ratio analyses that we can extend to analyse a rates matrix, obtained
by calculating the ratio between two initial multidimensional contingency tables. Our approach is illustrated by an empirical
study. The selection of the model, to be analysed through...]]>
20170426T07:02:52Z

Cluster analysis of local convergent sequences of structures
http://www.statisticsviews.com/details/journalArticle/10514616/Clusteranalysisoflocalconvergentsequencesofstructures.html
Abstract
The cluster analysis of very large objects is an important problem, which spans several theoretical as well as applied branches
of mathematics and computer science. Here we suggest a novel approach: under assumption of local convergence of a sequence
of finite structures we derive an asymptotic clustering. This is achieved by a blend of analytic and geometric techniques,
and particularly by a new interpretation of the...]]>
20170426T04:27:54Z

Performance and reliability analysis of a repairable discrete‐time <fi xmlns="http://www.wiley.com/namespaces/wiley">G</fi> <fi xmlns="http://www.wiley.com/namespaces/wiley">e</fi> <fi xmlns="http://www.wiley.com/namespaces/wiley">o</fi> / <fi xmlns="http://www.wiley.com/namespaces/wiley">G</fi> /1 queue with Bernoulli feedback and randomized policy
http://www.statisticsviews.com/details/journalArticle/10514620/PerformanceandreliabilityanalysisofarepairablediscretetimeGeoG1que.html
This paper is concerned with a discrete‐time Geo/G/1 repairable queueing system with Bernoulli feedback and randomized
p
,
N
‐policy. The service station may be subject to failures randomly during serving customers and therefore is sent for repair
immediately. The
...]]>
20170426T02:56:12Z

Reduction of the bilevel stochastic optimization problem with quantile objective function to a mixed‐integer problem
http://www.statisticsviews.com/details/journalArticle/10514619/Reductionofthebilevelstochasticoptimizationproblemwithquantileobjective.html
The paper is devoted to the stochastic optimistic bilevel optimization problem with quantile criterion in the upper level
problem. If the probability distribution is finite, the problem can be transformed into a mixed‐integer nonlinear optimization
problem. We formulate assumptions guaranteeing that an optimal solution exists. A production planning problem is used to illustrate
usefulness of the model. Copyright © 2017 John Wiley &...]]>
20170426T02:51:25Z

On tangential deformations of homogeneous polynomials
http://www.statisticsviews.com/details/journalArticle/10514617/Ontangentialdeformationsofhomogeneouspolynomials.html
Abstract
The Jacobian ideal provides the set of infinitesimally trivial deformations for a homogeneous polynomial, or for the corresponding
complex projective hypersurface. In this article, we investigate whether the associated linear deformation is indeed trivial,
and show that the answer is no in a general situation. We also give a characterization of tangentially smoothable hypersurfaces
with isolated singularities. Our results...]]>
20170426T01:33:19Z

Free access to paper on Bayesian inference for nonstationary marginal extremes
http://www.statisticsviews.com/details/news/10513590/FreeaccesstopaperonBayesianinferencefornonstationarymarginalextremes.html
Each week, we select a recently published article and provide free access. This week's is from Environmetrics and is available from the November 2016 issue.
To read the article in full, please click the link below:
Bayesian inference for nonstationary marginal extremes
D. Randell, K. Turnbull, K. Ewans and P. Jonathan
Environmetrics, Volume 27, Issue 7, pages 439–450, November 2016
DOI: 10.1002/env.2403]]>
20170425T13:05:00Z