London : [Published not identified], 1874.

A small group of science teachers in Missouri is using the coronavirus as a teachable moment that's aligned to the Next Generation Science Standards.

Gregor Pasemann, Wilhelm Stannat.

Source: Electronic Journal of Statistics, Volume 14, Number 1, 547--579.

Abstract:
A parameter estimation problem for a class of semilinear stochastic evolution equations is considered. Conditions for consistency and asymptotic normality are given in terms of growth and continuity properties of the nonlinear part. Emphasis is put on the case of stochastic reaction-diffusion systems. Robustness results for statistical inference under model uncertainty are provided.

Fabien Panloup, Samy Tindel, Maylis Varvenne.

Source: Electronic Journal of Statistics, Volume 14, Number 1, 1075--1136.

Abstract:
In this paper we consider the drift estimation problem for a general differential equation driven by an additive multidimensional fractional Brownian motion, under ergodic assumptions on the drift coefficient. Our estimation procedure is based on the identification of the invariant measure, and we provide consistency results as well as some information about the convergence rate. We also give some examples of coefficients for which the identifiability assumption for the invariant measure is satisfied.

Christian Olivera, Ciprian Tudor.

Source: Brazilian Journal of Probability and Statistics, Volume 33, Number 3, 520--531.

Abstract:
Via a special transform and by using the techniques of the Malliavin calculus, we analyze the density of the solution to a stochastic differential equation with unbounded drift.

We study the problem of parameter estimation for a non-ergodic Gaussian Vasicek-type model defined as $dX_t=(mu+ heta X_t)dt+dG_t, tgeq0$ with unknown parameters $ heta>0$ and $muinR$, where $G$ is a Gaussian process. We provide least square-type estimators $widetilde{ heta}_T$ and $widetilde{mu}_T$ respectively for the drift parameters $ heta$ and $mu$ based on continuous-time observations ${X_t, tin[0,T]}$ as $T ightarrowinfty$.

Our aim is to derive some sufficient conditions on the driving Gaussian process $G$ in order to ensure that $widetilde{ heta}_T$ and $widetilde{mu}_T$ are strongly consistent, the limit distribution of $widetilde{ heta}_T$ is a Cauchy-type distribution and $widetilde{mu}_T$ is asymptotically normal. We apply our result to fractional Vasicek, subfractional Vasicek and bifractional Vasicek processes. In addition, this work extends the result of cite{EEO} studied in the case where $mu=0$.

Uplift modeling is a predictive modeling technique that estimates the user-level incremental effect of a treatment using machine learning models. It is often used for targeting promotions and advertisements, as well as for the personalization of product offerings. In these applications, there are often hundreds of features available to build such models. Keeping all the features in a model can be costly and inefficient. Feature selection is an essential step in the modeling process for multiple reasons: improving the estimation accuracy by eliminating irrelevant features, accelerating model training and prediction speed, reducing the monitoring and maintenance workload for feature data pipeline, and providing better model interpretation and diagnostics capability. However, feature selection methods for uplift modeling have been rarely discussed in the literature. Although there are various feature selection methods for standard machine learning models, we will demonstrate that those methods are sub-optimal for solving the feature selection problem for uplift modeling. To address this problem, we introduce a set of feature selection methods designed specifically for uplift modeling, including both filter methods and embedded methods. To evaluate the effectiveness of the proposed feature selection methods, we use different uplift models and measure the accuracy of each model with a different number of selected features. We use both synthetic and real data to conduct these experiments. We also implemented the proposed filter methods in an open source Python package (CausalML).

Treat the babe in your life to one (or two or three) of these indulgent gifts.

A guide to the tech gadgets even your hard-to-shop-for friends and family members will love.

Here’s where you can snag their Alo Yoga Moto leggings for less.

Emeran A. Mayer
Nov 12, 2014; 34:15490-15496
Symposium

Jeremy R. Manning
Oct 28, 2009; 29:13613-13620
BehavioralSystemsCognitive

The Spanish Surrealist painted a series of 100 watercolors inspired by Dante's "Divine Comedy"

Some distilleries are donating their new product to local communities in need

With no new infections reported in Hubei province in recent days, restrictions are easing up—but experts worry about possible 'second wave' of cases

Using the lunar module as a lifeboat and employing techniques never before considered, the astronauts' ordeal ended triumphantly

<span class="topsy_trackback_comment"><span class="topsy_twitter_username"><span class="topsy_trackback_content">12 Cool India Facts [For President Obama's Visit] – RantRave ...: Washington Post12 Cool India Facts [For Presid... http://bit.ly/dmozLC</span></span>

BIS Press Release - Easing trade tensions lift sentiment: BIS Quarterly Review, 8 December 2019

Making Tierra Mía, says the director of the Smithsonian Latino Center, proved transformative in giving voice to the people

Two villages. 207 New Testaments. Countless steps. The Transform team walk from home to home, sustained by prayer.

The 2020 Special Olympics Summer Games, slated for June 11 to 13, are being canceled due to concerns related to coronavirus. The games will shift to virtual events, with details to be announced in the near future.

Bold steps can be taken by the EU to ease sanctions while not rewarding recalcitrant behaviour by Zanu-PF leadership

In Israel, where multiple languages are spoken, tracts are a helpful tool to overcoming language barriers that could inhibit someone from hearing about Jesus.

Walvis Bay, Namibia:: The Vice President of Namibia officially opens Logos Hope as she visits the country.

Australia's central bank has predicted that the country is facing its biggest economic contraction on record.

Choose a fragrant gift for your gardening mum, whether it's plants, flowers or botanicals. Hannah Stephenson sniffs out 10 ideas.

RESEARCHERS have called for a two-track approach to easing lockdown which would strengthen protection for the most vulnerable but relax restrictions for the majority of the population.

Rangers make Glasgow? Well, they certainly make it interesting.

Amazon still has some nice deals right now on Kindle e-readers and Fire tablets — up to $30 off, plus $5 in ebook credits on select purchases, and 3 months of Kindle Unlimited for $0.99.

If you need a last-minute gift, you can grab a $50 Apple iTunes gift card for $42.50. Plus, you can save $250 on the Microsoft Surface Pro 6 and $100 on the iRobot Roomba 675.

“It's not the end; it's not even the beginning of the end; but it is perhaps the end of the beginning”. Churchill's famous wartime speech after the battle of El Alamein in November 1942 was an ambiguous rallying cry. After all, by saying it was only the beginning, he was suggesting that there could be worse to come.

An internationally known gifted-education center is scouting—and helping to develop—gifted students in after-school programs and pullout classes in one of Maryland’s most challenged school districts.

Dougherty County, a largely black school district in an region heavily affected by coronavirus, is no longer subject to desegregation orders first imposed in 1963.

Hamish Wilson, radio producer and actor

Almost 20 percent of children, including some as young as 6-10, report being cyberbullied via social media sites and apps, according to a new study.

Ban bland tech; these Valentine's Day gift ideas will warm their heart.

While state school-finance systems have not changed much over time, they are devoting more targeted help to English language learners and student from low-income backgrounds than in the past, a new study finds.

Rooting out teacher bias and focusing on family engagement are some of the steps schools can take to identify more English-language learners for gifted and talented education.

Changes in BMI category appear to be common in young children and are associated with cardiometabolic risk in cross-sectional studies. However, there are few longitudinal studies and little information from multiethnic samples of US middle school children.

Findings demonstrate that shifts in BMI category are common in middle-school-aged children and associated with clinically meaningful changes in cardiometabolic risk factors. Programs to promote decreases in BMI, prevent increases, and moderate risk are indicated. (Read the full article)

Research indicates that bullying, a type of peer victimization, is related to worse mental and physical health. Most previous studies have been cross-sectional and have not examined effects of bullying over time.

This analysis examined longitudinal effects of bullying on mental and physical health from middle school to high school. Experiencing chronic bullying, especially in both the past and present, was associated with worse psychological and physical health. (Read the full article)

There is a generational shift in social norms related to body weight among adult population; little is known about the secular change of paternal perceptions of their child’s weight.

A shift in body norms toward heavier weight statuses exists among parents of children, presenting a vast challenge to family-based childhood obesity prevention. Primary care providers can play a more active role in identifying the children with increased weight. (Read the full article)

Obesity among youth can have immediate health effects as well as longer-term consequences during adulthood. Overweight/obese children and adolescents are much more likely than normal-weight children to become overweight/obese adults.

This large, multisite longitudinal study examines patterns of exit from and entry into obesity between childhood and adolescence. Socioeconomic factors, body image, television habits, and parental obesity were important predictors of whether children remained obese or became obese. (Read the full article)

Concern of the risk of malignancy from ionizing radiation has prompted many to advocate for judicious use of computed tomography (CT) and as low as necessary radiation doses administered per scan. Recent analysis has shown a decline in CT utilization.

We identified decreases in CT utilization between 2004 and 2012 for the 10 most common diagnostic groups receiving CT. Decreases were typically associated with increases in alternate imaging modalities. We provide a possible reason for the decrease in CT utilization. (Read the full article)

Before now, you could gift a paid iOS app, but not paid in-app purchases. An update to the review guidelines changes this, most likely as a reaction to more paid content only being available through in-app purchases.

If you're shopping for a gamer, especially if you can pin down their preferred platform, these cheap but fun accessories are guaranteed winners.

The unexpected transition to online classes due to the COVID-19 pandemic has prompted many changes for undergraduate students and their instructors. To understand the magnitude of these impacts and potentially improve digital learning, researchers in the Penn State School of Engineering Design and Professional Programs have received a $196,136 grant from the National Science Foundation.

Some educators and advocates fear the rule will dissuade immigrants from seeking certain government benefits, and that further burdens will fall on schools.

Oil was headed for the longest run of daily gains in more than nine months on signs the worst of the supply glut may be over as production cuts start to take effect.