منابع مشابه
Higher Risk of wet Winters in Europe due to Climate Change ?
Exchanges Risk (21 st C) / Risk (20 th C) Figure 1 from paper 'Quantifying risk in a changing climate': by T. Palmer and J. Räisänen: Upper left: the probability of a wet winter defined from the control CMIP2 ensemble with 20th century levels of CO 2 and based on the event E: DJF rainfall greater than the mean plus one standard deviation. Upper right: the probability of E but using data from th...
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We examine whether any trends in monthly temperatures are the same through-out the year for various lengthy series. The data concern the world, the northern and southern hemispheres, and about three centuries of data for the United Kingdom and the Netherlands. For the empirical exercise, we rely on new and accurate tests which have been recently developed. These tests do not have standard distr...
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A 59-year-old patient with a family history of coronary artery disease and no other risk factors arrived at the emergency department with typical angina chest pain lasting for 60 minutes. The admission electrocardiogram showed 1 mm upsloping ST-segment depression at the J point in leads V3–V6 without peaked T waves (Fig. 1a). The patient underwent primary percutaneous transluminal coronary angi...
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We propose new versions of Holt-Winters (HW) and seasonal Holt-Winters (SHW) time series forecasting algorithms. The exponential smoothing construct is identical to HW/SHW, except that the coefficients are estimated by minimizing a given quantile error criterion, instead of the usual squared errors. We call these versions quantile HW/SHW (QHW/QSHW), which amounts to performing HW/SHW under an a...
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ژورنال
عنوان ژورنال: Science
سال: 2021
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.372.6538.142-f