der

A musician in Venice is murdered before a tryst with a young woman who approaches the meeting place unaware of his death. Mezzotint by J.C. Bromley, 1836, after J.R. Herbert.

[London] (Haymarket) : Published ... for the proprietors, by T McLean, Septr. 1. 1836 ([London?] : Printed by Lahee & Co.)




der

Bernard Gilpin making peace among the warring clans on the English Border with Scotland. Photograph after W.B. Scott.

[19--?]




der

A dish is brought to the table of the Border chiefs of Northumberland: instead of food, the dish contains a spur, indicating that the men should ride out and plunder for food. Photograph after W.B. Scott.

[19--?]




der

Egypt: a building designated as the palace of Alexander the Great. Coloured engraving, 17--.

A Paris (rue St Jacques a l'Hotel Saumur) : chez Mondhare, [between 1760 and 1792]




der

Tashkent: two mendicant Dervish men in conversation. Process print after G.S. Sedoff after V.V. Vereshchagin.




der

The Raden Temenggung and regent of Lebak, Java, Indonesia. Coloured lithograph by P. Lauters after C.W.M. van der Velde, ca. 1843.

Amsterdam : Uitgegeven by Frans Buffa en Zonen, [between 1843 and 1845]




der

The Radja Djajanagara and regent of Serang, Java, Indonesia. Coloured lithograph by P. Lauters after C.W.M. van der Velde, ca. 1843.

Amsterdam : Uitgegeven by Frans Buffa en Zonen, [between 1843 and 1845]




der

Acts of mercy : the Middlesex Hospital paintings by Frederick Cayley Robinson (1862-1927) / [text by William Schupbach].

[London] : [Wellcome Trust], [2009]




der

Report upon the Scott Moncrieff system for the bacteriological purification of sewage / by Alexander C. Houston.

[London] : Waterlow Bros. & Layton, Limited, [1893]




der

King Charles I on horseback outside the city walls of Hull: the Parliamentarians inside, led by Sir John Hotham, refuse to surrender the city. Engraving by N. Tardieu after C. Parrocel.

London : Printed and sold by Thos. and John Bowles, printsellers, [1728]




der

Feds tell New Mexico to stop diverting federal school aid




der

Former New Mexico Schools Chief Hanna Skandera on Coronavirus

"The current situation may force our hand to adjust our measures of evaluation, and, personally, I think it is beyond time that we push our thinking to include new ideas," says Hanna Skandera.




der

Michigan Administrator Tapped to Oversee Federal Special Education Programs

Laurie VanderPloeg, a longtime special education administrator, will take over the office of special education programs starting in November.




der

Schools Reconsider the Calendar as Students Grow More Diverse

A growing number of schools are re-evaluating their policies on religious holidays in response to the changing demographics of their students.




der

As Demand for Food Grows Under Coronavirus, Schools Step Up

Districts are reconfiguring services, offering hazard pay, and partnering with food banks to keep up with a growing, unprecedented demand for food services during the school shutdown.




der

Pritzker orders Illinois schools closed for rest of semester




der

2020 NHL draft profile: William Wallinder looks a lot like Flyers prospect Egor Zamula

The next Egor Zamula? A package of size and skill could be there for the Flyers in the 2020 NHL draft with William Wallinder. By Jordan Hall




der

2020 NHL draft profile: Braden Schneider has quite a high ceiling for a 2-way defenseman

The Flyers have had quite a bit of luck when drafting players from the Brandon Wheat Kings. Could they keep their streak alive with Braden Schneider in the first round of the 2020 NHL draft? By Brooke Destra




der

Evgeny Kuznestov doesn’t consider his 2018 series-winning goal against Pittsburgh the biggest of his life

Capitals forward Evgeny Kuznetsov doesn't consider his series-winning goal against the Penguins in 2018 is the biggest goal of his life.




der

PHT Morning Skate: Pietrangelo’s future; underrated Bjorkstrand

Friday's collection of links.




der

More Than Phonics: How to Boost Comprehension for Early Readers

Learning how to decode words is essential to becoming a reader. But research shows that building a strong vocabulary and knowledge-base is crucial as well.




der

Integrated treatment of eating disorders : beyond the body betrayed / Kathryn J. Zerbe.

New York ; London : W.W. Norton, 2008.




der

Administrative scheme for the County of London made by the London County Council on 18th December, 1934, for discharging the functions transferred to the Council by Part I of the Local Government Act, 1929, and orders made bu the Minister of Health under

England : London County Council, Public Assistance Department, 1935.




der

Veränderbarkeit des Genoms : Herausforderungen für die Zukunft : Vorträge anlässlich der Jahresversammlung am 22. und 23. September 2017 in Halle (Saale) / herausgegeben von: Jörg Hacker.

Halle (Saale) : Deutsche Akademie der Naturforscher Leopoldina - Nationale Akademie der Wissenschaften ; Stuttgart : Wissenschaftliche Verlagsgesellschaft, 2019.




der

Tierische Drogen im 18. Jahrhundert im Spiegel offizineller und nicht offizineller Literatur und ihre Bedeutung in der Gegenwart / Katja Susanne Moosmann ; mit einem Geleitwort von Christoph Friedrich.

Stuttgart : In Kommission: Wissenschaftliche Verlagsgesellschaft, 2019.




der

Geschichte der Appendizitis : von der Entdeckung des Organs bis hin zur minimalinvasiven Appendektomie / Mali Kallenberger.

Berlin : Peter Lang [2019]




der

Medizin ist Wandel : das Gedankengebäude der chinesischen Medizin richtig verstehen / Andrea-Mercedes Riegel.

Baden-Baden : DWV, Deutscher Wissenschafts-Verlag, 2019.




der

Adolescent drug abuse : analyses of treatment research / editors, Elizabeth R. Rahdert, John Grabowski.

Rockville, Maryland : National Institute on Drug Abuse, 1988.




der

Evaluating and treating depressive disorders in opiate addicts / Bruce J. Rounsaville, Thomas R. Kosten, Myrna M. Wiessman, Herbert D. Kleber, for the National Institute on Drug Abuse.

Rockville, Maryland : National Institute on Drug Abuse, 1985.




der

Psychosocial characteristics of drug-abusing women / by Marvin R. Burt, principal investigator ; Thomas J. Glynn, Barbara J. Sowder ; Burt Associates, Inc.

Rockville, Maryland : National Institute on Drug Abuse, 1979.




der

Food & me : a zine about disordered eating.

[London] : [publisher not identified], [2019]




der

The incidence of driving under the influence of drugs, 1985 : an update of the state of knowledge / [Richard P. Compton and Theodore E. Anderson].

Springfield, Virginia : National Technical Information Service, 1985.




der

A survey of alcohol and drug abuse programs in the railroad industry / [Lyman C. Hitchcock, Mark S. Sanders ; Naval Weapons Support Center].

Washington, D.C. : Department of Transportation, Federal Railroad Administration, 1976.




der

The wilderness of mind : sacred plants in cross-cultural perspective / Marlene Dobkin De Rios.

Beverly Hills : Sage Publications, 1976.




der

The university chemical dependency project : final report : November 1 1986 / Steven A. Bloch, Steven Ungerleider.

[Indiana] : Integrated Research Services, Inc., 1986.




der

Series 02: Merle Highet sound recordings of Frederick Rose, 1990




der

The Most Excellent Order of the British Empire Association (New South Wales) further records, 1979-2012




der

Stanford's Tara VanDerveer on Haley Jones' versatile freshman year: 'It was really incredible'

During Friday's "Pac-12 Perspective," Stanford head coach Tara VanDerveer spoke about Haley Jones' positionless game and how the Cardinal used the dynamic freshman in 2019-20. Download and listen wherever you get your podcasts.




der

Non-parametric adaptive estimation of order 1 Sobol indices in stochastic models, with an application to Epidemiology

Gwenaëlle Castellan, Anthony Cousien, Viet Chi Tran.

Source: Electronic Journal of Statistics, Volume 14, Number 1, 50--81.

Abstract:
Global sensitivity analysis is a set of methods aiming at quantifying the contribution of an uncertain input parameter of the model (or combination of parameters) on the variability of the response. We consider here the estimation of the Sobol indices of order 1 which are commonly-used indicators based on a decomposition of the output’s variance. In a deterministic framework, when the same inputs always give the same outputs, these indices are usually estimated by replicated simulations of the model. In a stochastic framework, when the response given a set of input parameters is not unique due to randomness in the model, metamodels are often used to approximate the mean and dispersion of the response by deterministic functions. We propose a new non-parametric estimator without the need of defining a metamodel to estimate the Sobol indices of order 1. The estimator is based on warped wavelets and is adaptive in the regularity of the model. The convergence of the mean square error to zero, when the number of simulations of the model tend to infinity, is computed and an elbow effect is shown, depending on the regularity of the model. Applications in Epidemiology are carried to illustrate the use of non-parametric estimators.




der

On change-point estimation under Sobolev sparsity

Aurélie Fischer, Dominique Picard.

Source: Electronic Journal of Statistics, Volume 14, Number 1, 1648--1689.

Abstract:
In this paper, we consider the estimation of a change-point for possibly high-dimensional data in a Gaussian model, using a maximum likelihood method. We are interested in how dimension reduction can affect the performance of the method. We provide an estimator of the change-point that has a minimax rate of convergence, up to a logarithmic factor. The minimax rate is in fact composed of a fast rate —dimension-invariant— and a slow rate —increasing with the dimension. Moreover, it is proved that considering the case of sparse data, with a Sobolev regularity, there is a bound on the separation of the regimes above which there exists an optimal choice of dimension reduction, leading to the fast rate of estimation. We propose an adaptive dimension reduction procedure based on Lepski’s method and show that the resulting estimator attains the fast rate of convergence. Our results are then illustrated by a simulation study. In particular, practical strategies are suggested to perform dimension reduction.




der

Derivative-Free Methods for Policy Optimization: Guarantees for Linear Quadratic Systems

We study derivative-free methods for policy optimization over the class of linear policies. We focus on characterizing the convergence rate of these methods when applied to linear-quadratic systems, and study various settings of driving noise and reward feedback. Our main theoretical result provides an explicit bound on the sample or evaluation complexity: we show that these methods are guaranteed to converge to within any pre-specified tolerance of the optimal policy with a number of zero-order evaluations that is an explicit polynomial of the error tolerance, dimension, and curvature properties of the problem. Our analysis reveals some interesting differences between the settings of additive driving noise and random initialization, as well as the settings of one-point and two-point reward feedback. Our theory is corroborated by simulations of derivative-free methods in application to these systems. Along the way, we derive convergence rates for stochastic zero-order optimization algorithms when applied to a certain class of non-convex problems.




der

Smoothed Nonparametric Derivative Estimation using Weighted Difference Quotients

Derivatives play an important role in bandwidth selection methods (e.g., plug-ins), data analysis and bias-corrected confidence intervals. Therefore, obtaining accurate derivative information is crucial. Although many derivative estimation methods exist, the majority require a fixed design assumption. In this paper, we propose an effective and fully data-driven framework to estimate the first and second order derivative in random design. We establish the asymptotic properties of the proposed derivative estimator, and also propose a fast selection method for the tuning parameters. The performance and flexibility of the method is illustrated via an extensive simulation study.




der

WONDER: Weighted One-shot Distributed Ridge Regression in High Dimensions

In many areas, practitioners need to analyze large data sets that challenge conventional single-machine computing. To scale up data analysis, distributed and parallel computing approaches are increasingly needed. Here we study a fundamental and highly important problem in this area: How to do ridge regression in a distributed computing environment? Ridge regression is an extremely popular method for supervised learning, and has several optimality properties, thus it is important to study. We study one-shot methods that construct weighted combinations of ridge regression estimators computed on each machine. By analyzing the mean squared error in a high-dimensional random-effects model where each predictor has a small effect, we discover several new phenomena. Infinite-worker limit: The distributed estimator works well for very large numbers of machines, a phenomenon we call 'infinite-worker limit'. Optimal weights: The optimal weights for combining local estimators sum to more than unity, due to the downward bias of ridge. Thus, all averaging methods are suboptimal. We also propose a new Weighted ONe-shot DistributEd Ridge regression algorithm (WONDER). We test WONDER in simulation studies and using the Million Song Dataset as an example. There it can save at least 100x in computation time, while nearly preserving test accuracy.




der

Access thousands of newspapers and magazines with PressReader

Want to access thousands of newspapers and magazines wherever you are?




der

Reliability estimation in a multicomponent stress-strength model for Burr XII distribution under progressive censoring

Raj Kamal Maurya, Yogesh Mani Tripathi.

Source: Brazilian Journal of Probability and Statistics, Volume 34, Number 2, 345--369.

Abstract:
We consider estimation of the multicomponent stress-strength reliability under progressive Type II censoring under the assumption that stress and strength variables follow Burr XII distributions with a common shape parameter. Maximum likelihood estimates of the reliability are obtained along with asymptotic intervals when common shape parameter may be known or unknown. Bayes estimates are also derived under the squared error loss function using different approximation methods. Further, we obtain exact Bayes and uniformly minimum variance unbiased estimates of the reliability for the case common shape parameter is known. The highest posterior density intervals are also obtained. We perform Monte Carlo simulations to compare the performance of proposed estimates and present a discussion based on this study. Finally, two real data sets are analyzed for illustration purposes.




der

On estimating the location parameter of the selected exponential population under the LINEX loss function

Mohd Arshad, Omer Abdalghani.

Source: Brazilian Journal of Probability and Statistics, Volume 34, Number 1, 167--182.

Abstract:
Suppose that $pi_{1},pi_{2},ldots ,pi_{k}$ be $k(geq2)$ independent exponential populations having unknown location parameters $mu_{1},mu_{2},ldots,mu_{k}$ and known scale parameters $sigma_{1},ldots,sigma_{k}$. Let $mu_{[k]}=max {mu_{1},ldots,mu_{k}}$. For selecting the population associated with $mu_{[k]}$, a class of selection rules (proposed by Arshad and Misra [ Statistical Papers 57 (2016) 605–621]) is considered. We consider the problem of estimating the location parameter $mu_{S}$ of the selected population under the criterion of the LINEX loss function. We consider three natural estimators $delta_{N,1},delta_{N,2}$ and $delta_{N,3}$ of $mu_{S}$, based on the maximum likelihood estimators, uniformly minimum variance unbiased estimator (UMVUE) and minimum risk equivariant estimator (MREE) of $mu_{i}$’s, respectively. The uniformly minimum risk unbiased estimator (UMRUE) and the generalized Bayes estimator of $mu_{S}$ are derived. Under the LINEX loss function, a general result for improving a location-equivariant estimator of $mu_{S}$ is derived. Using this result, estimator better than the natural estimator $delta_{N,1}$ is obtained. We also shown that the estimator $delta_{N,1}$ is dominated by the natural estimator $delta_{N,3}$. Finally, we perform a simulation study to evaluate and compare risk functions among various competing estimators of $mu_{S}$.




der

Application of weighted and unordered majorization orders in comparisons of parallel systems with exponentiated generalized gamma components

Abedin Haidari, Amir T. Payandeh Najafabadi, Narayanaswamy Balakrishnan.

Source: Brazilian Journal of Probability and Statistics, Volume 34, Number 1, 150--166.

Abstract:
Consider two parallel systems, say $A$ and $B$, with respective lifetimes $T_{1}$ and $T_{2}$ wherein independent component lifetimes of each system follow exponentiated generalized gamma distribution with possibly different exponential shape and scale parameters. We show here that $T_{2}$ is smaller than $T_{1}$ with respect to the usual stochastic order (reversed hazard rate order) if the vector of logarithm (the main vector) of scale parameters of System $B$ is weakly weighted majorized by that of System $A$, and if the vector of exponential shape parameters of System $A$ is unordered mojorized by that of System $B$. By means of some examples, we show that the above results can not be extended to the hazard rate and likelihood ratio orders. However, when the scale parameters of each system divide into two homogeneous groups, we verify that the usual stochastic and reversed hazard rate orders can be extended, respectively, to the hazard rate and likelihood ratio orders. The established results complete and strengthen some of the known results in the literature.




der

A Jackson network under general regime

Yair Y. Shaki.

Source: Brazilian Journal of Probability and Statistics, Volume 33, Number 3, 532--548.

Abstract:
We consider a Jackson network in a general heavy traffic diffusion regime with the $alpha$-parametrization . We also assume that each customer may abandon the system while waiting. We show that in this regime the queue-length process converges to a multi-dimensional regulated Ornstein–Uhlenbeck process.




der

A temporal perspective on the rate of convergence in first-passage percolation under a moment condition

Daniel Ahlberg.

Source: Brazilian Journal of Probability and Statistics, Volume 33, Number 2, 397--401.

Abstract:
We study the rate of convergence in the celebrated Shape Theorem in first-passage percolation, obtaining the precise asymptotic rate of decay for the probability of linear order deviations under a moment condition. Our results are presented from a temporal perspective and complement previous work by the same author, in which the rate of convergence was studied from the standard spatial perspective.




der

A new log-linear bimodal Birnbaum–Saunders regression model with application to survival data

Francisco Cribari-Neto, Rodney V. Fonseca.

Source: Brazilian Journal of Probability and Statistics, Volume 33, Number 2, 329--355.

Abstract:
The log-linear Birnbaum–Saunders model has been widely used in empirical applications. We introduce an extension of this model based on a recently proposed version of the Birnbaum–Saunders distribution which is more flexible than the standard Birnbaum–Saunders law since its density may assume both unimodal and bimodal shapes. We show how to perform point estimation, interval estimation and hypothesis testing inferences on the parameters that index the regression model we propose. We also present a number of diagnostic tools, such as residual analysis, local influence, generalized leverage, generalized Cook’s distance and model misspecification tests. We investigate the usefulness of model selection criteria and the accuracy of prediction intervals for the proposed model. Results of Monte Carlo simulations are presented. Finally, we also present and discuss an empirical application.