Results 81 to 90 of about 888,711 (295)
Ecotoxicology and Environmental SafetyThis study evaluates the utility of the tail of the lizard Microlophus atacamensis as a biomonitor for assessing variation in heavy metals contamination (lead, copper, nickel, zinc and cadmium) using non- or minimally invasive methods that do not require
Yery Marambio-Alfaro +9 more
doaj +1 more source
A note on the bootstrap method for testing the existence of finite moments
Statistica, 2014 This paper discusses a bootstrap-based test, which checks if finite moments exist, and indicates cases of possible misapplication. It notes, that a procedure for finding the smallest power to which observations need to be raised, such that the test ...
Igor Fedotenkov
doaj +1 more source
Advanced Engineering Materials, EarlyView.Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch +3 more
wiley +1 more source
Value-at-Risk Estimation and the Port Mean-of-Order-P Methodology
Revstat Statistical Journal, 2017 In finance, insurance and statistical quality control, among many other areas of appli[1]cation, a typical requirement is to estimate the value-at-risk (VaR) at a small level q, i.e. a high quantile of probability 1 −q, a value, high enough, so that the
Fernanda Figueiredo +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti +4 more
wiley +1 more source
On the Impossibility of Learning the Missing Mass
Entropy, 2019 This paper shows that one cannot learn the probability of rare events without imposing further structural assumptions. The event of interest is that of obtaining an outcome outside the coverage of an i.i.d. sample from a discrete distribution.
Elchanan Mossel, Mesrob I. Ohannessian
doaj +1 more source
Advanced Engineering Materials, EarlyView.The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ +19 more
wiley +1 more source
Asynchronous Heavy-Tailed Optimization
CoRR8-page main body, 25-page appendix, 5 ...
Junfei Sun +5 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti +16 more
wiley +1 more source
Heavy tails and electricity prices: Do time series models with non-Gaussian noise forecast better than their Gaussian counterparts? [PDF]
This paper is a continuation of our earlier studies on short-term price forecasting of California electricity prices with time series models. Here we focus on whether models with heavy-tailed innovations perform better in terms of forecasting accuracy ...
Weron, Rafal, Misiorek, Adam
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