Glenn, a former boxer and owner of popular Times Square bar Jimmy's Corner, died of coronavirus early Thursday morning at 89.
Glenn, a former boxer and owner of popular Times Square bar Jimmy's Corner, died of coronavirus early Thursday morning at 89.
People wait in line for these giant ice cream-stuffed doughnuts, even on snowy winter days.
Take a peek inside this modern Fountain Square three story home, Wednesday, Jan. 23, 2019.
We’ve previously taken a look at the notable differences between PayPal and Stripe, although in this tutorial we’ll be focusing on the up and coming Square Payment Gateway and how it compares with Stripe. While both Square and Stripe share some similarities such as their branding and names, they each offer features which suit two […]
The post Stripe vs Square appeared first on Tips and Tricks HQ.
Interview with Ari Nieh, with commentary from Yvonne Lai Like many of us, I began teaching online this Spring. Unlike many of us, I began doing so at the start of the semester. I am co-teaching a class at Michigan … Continue reading
Alexandre Mösching, Lutz Dümbgen.
Source: Electronic Journal of Statistics, Volume 14, Number 1, 24--49.
Abstract:
We consider bivariate observations $(X_{1},Y_{1}),ldots,(X_{n},Y_{n})$ such that, conditional on the $X_{i}$, the $Y_{i}$ are independent random variables. Precisely, the conditional distribution function of $Y_{i}$ equals $F_{X_{i}}$, where $(F_{x})_{x}$ is an unknown family of distribution functions. Under the sole assumption that $xmapsto F_{x}$ is isotonic with respect to stochastic order, one can estimate $(F_{x})_{x}$ in two ways:
(i) For any fixed $y$ one estimates the antitonic function $xmapsto F_{x}(y)$ via nonparametric monotone least squares, replacing the responses $Y_{i}$ with the indicators $1_{[Y_{i}le y]}$.
(ii) For any fixed $eta in (0,1)$ one estimates the isotonic quantile function $xmapsto F_{x}^{-1}(eta)$ via a nonparametric version of regression quantiles.
We show that these two approaches are closely related, with (i) being more flexible than (ii). Then, under mild regularity conditions, we establish rates of convergence for the resulting estimators $hat{F}_{x}(y)$ and $hat{F}_{x}^{-1}(eta)$, uniformly over $(x,y)$ and $(x,eta)$ in certain rectangles as well as uniformly in $y$ or $eta$ for a fixed $x$.
Benjamin Colling, Ingrid Van Keilegom.
Source: Electronic Journal of Statistics, Volume 14, Number 1, 769--800.
Abstract:
Consider the following semiparametric transformation model $Lambda_{ heta }(Y)=m(X)+varepsilon $, where $X$ is a $d$-dimensional covariate, $Y$ is a univariate response variable and $varepsilon $ is an error term with zero mean and independent of $X$. We assume that $m$ is an unknown regression function and that ${Lambda _{ heta }: heta inTheta }$ is a parametric family of strictly increasing functions. Our goal is to develop two new estimators of the transformation parameter $ heta $. The main idea of these two estimators is to minimize, with respect to $ heta $, the $L_{2}$-distance between the transformation $Lambda _{ heta }$ and one of its fully nonparametric estimators. We consider in particular the nonparametric estimator based on the least-absolute deviation loss constructed in Colling and Van Keilegom (2019). We establish the consistency and the asymptotic normality of the two proposed estimators of $ heta $. We also carry out a simulation study to illustrate and compare the performance of our new parametric estimators to that of the profile likelihood estimator constructed in Linton et al. (2008).
Guangyu Zhu, Zhihua Su.
Source: The Annals of Statistics, Volume 48, Number 1, 161--182.
Abstract:
Sparse partial least squares (SPLS) is widely used in applied sciences as a method that performs dimension reduction and variable selection simultaneously in linear regression. Several implementations of SPLS have been derived, among which the SPLS proposed in Chun and Keleş ( J. R. Stat. Soc. Ser. B. Stat. Methodol. 72 (2010) 3–25) is very popular and highly cited. However, for all of these implementations, the theoretical properties of SPLS are largely unknown. In this paper, we propose a new version of SPLS, called the envelope-based SPLS, using a connection between envelope models and partial least squares (PLS). We establish the consistency, oracle property and asymptotic normality of the envelope-based SPLS estimator. The large-sample scenario and high-dimensional scenario are both considered. We also develop the envelope-based SPLS estimators under the context of generalized linear models, and discuss its theoretical properties including consistency, oracle property and asymptotic distribution. Numerical experiments and examples show that the envelope-based SPLS estimator has better variable selection and prediction performance over the SPLS estimator ( J. R. Stat. Soc. Ser. B. Stat. Methodol. 72 (2010) 3–25).
Qiyang Han, Jon A. Wellner.
Source: The Annals of Statistics, Volume 47, Number 4, 2286--2319.
Abstract:
We study the performance of the least squares estimator (LSE) in a general nonparametric regression model, when the errors are independent of the covariates but may only have a $p$th moment ($pgeq1$). In such a heavy-tailed regression setting, we show that if the model satisfies a standard “entropy condition” with exponent $alphain(0,2)$, then the $L_{2}$ loss of the LSE converges at a rate
[mathcal{O}_{mathbf{P}}igl(n^{-frac{1}{2+alpha}}vee n^{-frac{1}{2}+frac{1}{2p}}igr).] Such a rate cannot be improved under the entropy condition alone.
This rate quantifies both some positive and negative aspects of the LSE in a heavy-tailed regression setting. On the positive side, as long as the errors have $pgeq1+2/alpha$ moments, the $L_{2}$ loss of the LSE converges at the same rate as if the errors are Gaussian. On the negative side, if $p<1+2/alpha$, there are (many) hard models at any entropy level $alpha$ for which the $L_{2}$ loss of the LSE converges at a strictly slower rate than other robust estimators.
The validity of the above rate relies crucially on the independence of the covariates and the errors. In fact, the $L_{2}$ loss of the LSE can converge arbitrarily slowly when the independence fails.
The key technical ingredient is a new multiplier inequality that gives sharp bounds for the “multiplier empirical process” associated with the LSE. We further give an application to the sparse linear regression model with heavy-tailed covariates and errors to demonstrate the scope of this new inequality.
Kerstin Spitzer, Marta Pelizzola, Andreas Futschik.
Source: The Annals of Applied Statistics, Volume 14, Number 1, 202--220.
Abstract:
Evolve and resequence studies provide a popular approach to simulate evolution in the lab and explore its genetic basis. In this context, Pearson’s chi-square test, Fisher’s exact test as well as the Cochran–Mantel–Haenszel test are commonly used to infer genomic positions affected by selection from temporal changes in allele frequency. However, the null model associated with these tests does not match the null hypothesis of actual interest. Indeed, due to genetic drift and possibly other additional noise components such as pool sequencing, the null variance in the data can be substantially larger than accounted for by these common test statistics. This leads to $p$-values that are systematically too small and, therefore, a huge number of false positive results. Even, if the ranking rather than the actual $p$-values is of interest, a naive application of the mentioned tests will give misleading results, as the amount of overdispersion varies from locus to locus. We therefore propose adjusted statistics that take the overdispersion into account while keeping the formulas simple. This is particularly useful in genome-wide applications, where millions of SNPs can be handled with little computational effort. We then apply the adapted test statistics to real data from Drosophila and investigate how information from intermediate generations can be included when available. We also discuss further applications such as genome-wide association studies based on pool sequencing data and tests for local adaptation.
Squarespace offers numerous useful tools for building attractive, functional sites for personal and small business use. Users will need to rebuild their sites if they want to upgrade to the latest version of the service, however.
On Sunday, Nov. 19, The Old State House will host an engaging historical dramatic production, John Dickinson and Thomas Jefferson Debate Independence: “We have called by different names brethren of the same principle,” presented by the American Historical Theatre of Philadelphia.
The game had star power, sizzle and 14 total goals. Plus, we debate Lemieux's status in the GOAT rankings, and how these Penguins would fare in today's NHL.
Hello,
Would anyone know how to setup a PSS or QPSS simulation with 25% dutycycle clock sources or if such a thing is possible with QPSS.
Fig1 (below) is a snapshot of the circuit I am trying to characterize. This has 4 clock ports each with 25%duty cycle in the ON state. Fig2 below shows two of these clocks.
Each path in the circuit consists of two switches with a low pass RC sandwiched in between. The Input is a 50Ohm port sine wave and the output is a 1K resistor. The output nets of all paths are connected together.
I am trying to determine the swept frequency response from input to output (voltage) when the input is from 500Mhz to 510MHz. The Period (T=1/Fp) of each of the pulses is such that Fp=500MHz. The first pulse source has a delay=0, second has delay=T/4, third delay=2T/4, etc...
I am currently getting it working and seeing the correct result (bandpass response) with Transient but the problem is doing a dft at 500MHz with 10KHz spacings needs at least 100us and takes up a lot of time and disk space.
Many Thanks,
Chris.
Fig1
Fig2
Is it possible to change trace ends from round to square? Allegro PCB Designer 17.2 (basic)
Thanks
Fall has arrived, and with it comes fundraising season. More than one-third of charitable giving happens in the last three months of the year, and the emergence of Giving Tuesday (on November 28 this year) makes the year's end even more critical for charities.
Feeling overwhelmed? Your local NetSquared group is here to help with free, in-person events being held across the U.S. and the globe.
Naples, Florida, is hosting a meetup on tools for effective email fundraising; Chippewa Falls, Wisconsin, is hosting a series of Giving Tuesday brainstorming sessions; and Chicago, Illinois, will explore how your CRM can save end-of-year fundraising plans.
With more than 75 events scheduled for October, there's probably an event scheduled for your community, so RSVP now for one of our meetups.
This roundup of face-to-face nonprofit tech events includes meetups from NetSquared, NTEN's Tech Clubs, and other awesome organizations. If you're holding monthly events that gather the #nptech community, let me know, and I'll include you in the next community calendar, or apply today to start your own NetSquared group.
Jump to events in North America or go international with events in
Monday, October 2, 2017
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Tuesday, October 31, 2017
Left photo: Gregory Munyaneza / NetSquared Rwanda / CC BY
Center photo: Chrispin Okumu / NetSquared Kenya / CC BY
Right photo: Chrispin Okumu / NetSquared Kenya / CC BY
Solar company Hanergy announced that its thin-film solar modules will cover the 150,000 square meter roof of the ‘Rafael Gallery’ located at a Tech City in Shanghai.
Solar company Hanergy announced that its thin-film solar modules will cover the 150,000 square meter roof of the ‘Rafael Gallery’ located at a Tech City in Shanghai.
Quick, what’s the square root of -1? Okay, I know. That’s an easy one. But how about the square root of i? If it’s been a while since you took complex analysis, you might have to scratch your head a little bit. Fortunately, MATLAB can just tell us. ... read more >>
Tennis in the time of coronavirus serves up a new sort of court as World Club players take their game to Munich's now empty squares and boulevards.
Stuck for things to play this weekend? After offering their exhaustive JRPG lineup at a pittance last week, Square Enix have this week gutted the price of their Eidos Anthology bundle on Steam as part of their “Stay Home & Play” campaign – offering 54 PC classics, contemporary bangers and bizarre curiosities for just under […]
Lucas Joppa, founder of Microsoft's AI for Earth program, is taking an engineering approach to environmental issues
54 games, including titles from Tomb Raider, Just Cause, and Deus Ex, are in this charity bundle.
In a tale of two cities, Moscow keeps its distance while in Minsk, thousands turn out for the traditional military spectacular
In any other year, hundreds of thousands of Russians would have marched with portraits of relatives who fought in the second world war in a memorial called the Immortal Regiment.
But on Saturday, the images of Soviet veterans and their families floated past on Russian television, a public vigil adapted for the era of social isolation.
Continue reading...https://store.steampowered.com/bundle/14956/Square_Enix_Eidos_Anthology/
More is taken off based on what you already own (obviously you need to be signed into steam to see that).
The acclaimed Australian artist is painting black squares on a gallery wall with his eyes closed to protest against the values that led us to climate crisis.
Almost 7,000 square kilometres of land will be released for coal and gas exploration in central and north Queensland as part of measures to ensure the survival of the resources sector through the coronavirus pandemic, the State Government says.
"Earlier this evening, Faisal Shahzad was arrested in connection with the attempted car bombing in New York on Saturday," said Attorney General Holder.
"The Department of Justice and our partners in the national security community have no higher priority than disrupting those attempts, and bringing those who plot them to justice."
A federal grand jury in the Southern District of New York has returned a 10-count indictment charging Faisal Shahzad for allegedly driving a car bomb into Times Square on the evening of May 1, 2010.
“Faisal Shahzad plotted and launched an attack that could have led to serious loss of life, and today the American criminal justice system ensured that he will pay the price for his actions,” Attorney General Eric Holder said.
It's got everything, from hotels to hospitals to theaters to the world's largest mall, and a severe case of cognitive dissonance.
These delicious dessert squares skip the crust and the refined sugar. They're quick and easy to make for lightly sweet snacks during fall and winter.
Turn trash into a school garden in Harlem by recycling drink bottles in Times Square today.
It is both a parody of the real estate business and a shocking exposé of Hong Kong Housing
