Results 101 to 110 of about 44,938 (219)
Journal of Time Series Analysis, EarlyView.ABSTRACT We consider the problem of sequential (online) estimation of a single change point in a piecewise linear regression model under a Gaussian setup. We demonstrate that certain CUSUM‐type statistics attain the minimax optimal rates for localizing the change point.
Annika Hüselitz, Housen Li, Axel Munk
wiley +1 more source
BMC PediatricsBackground Thrombocytopenia, defined as a platelet count of less than 150 × 109/L of blood, is one of the most commonly encountered hematological disorders in sick newborn infants globally.
Fekadeselassie Belege Getaneh +7 more
doaj +1 more source
A Test of Ghiselli\u27s Hobo Syndrome [PDF]
, 1992 Ghiselli (1974) observed that some workers possess internal impulses to migrate from one job to another irrespective of better alternatives or other apparently rational motives. Ghiselli labeled this tendency the hobo syndrome. The present study tested
Judge , Timothy A. +1 more
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Sequential Outlier Detection in Nonstationary Time Series
Journal of Time Series Analysis, EarlyView.ABSTRACT A novel method for sequential outlier detection in nonstationary time series is proposed. The method tests the null hypothesis of “no outlier” at each time point, addressing the multiple testing problem by bounding the error probability of successive tests, using extreme‐value theory. The asymptotic properties of the test statistic are studied
Florian Heinrichs +2 more
wiley +1 more source
Blind Image Quality Assessment of Natural Scenes Based on Entropy Differences in the DCT Domain
Entropy, 2018 Blind/no-reference image quality assessment is performed to accurately evaluate the perceptual quality of a distorted image without prior information from a reference image.
Xiaohan Yang +3 more
doaj +1 more source
LABOUR, EarlyView.ABSTRACT The present paper provides an overall framework to afford the problem of non‐representativeness and non‐random selectivity arising from online job ads data, using Generalized sample selection models and Eurostat benchmark data. We jointly model the outcome intensity (number of online job ads in observed profiles, whose levels are defined by ...
Pietro Giorgio Lovaglio +1 more
wiley +1 more source
Plant Breeding, EarlyView.ABSTRACT Increasingly variable climate conditions are affecting crop production, leading to greater yield fluctuations, which in turn are impacting global food security. Introducing alleles from regions where the expected stress conditions occur, so‐called exotic alleles, could serve as a means to mitigate these effects. We examined the value of exotic
Michael Schneider +4 more
wiley +1 more source
Plant Biology, EarlyView.Potassium silicate can decrease the uptake of sodium (Na+) into wheat cells by affecting the Na+ uptake channels and increasing ion homeostasis. Abstract Salinity causes negative impacts on crops. We investigated the effect of potassium silicate (K2SiO3) on the cytosolic uptake of sodium, [Na+]cyt, in mesophyll protoplasts of wheat cultivars differing ...
M. T. Javed, S. H. Morgan, S. Lindberg
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Public Administration Review, EarlyView.ABSTRACT Administrative burdens are deliberate policy choices, as governments can proactively design rules and procedures to shape burdens experienced by citizens. While existing research has examined the effects of burden reduction strategies, less is known about the factors driving burden reduction actions at the local level.
Shan Zhou, Emma Mast
wiley +1 more source
Restoration Ecology, EarlyView.Abstract Introduction Juvenile coral reef fish face an initial predation‐induced mortality bottleneck with mortality exceeding 60% within 48 hours of settlement. This intense predation, exacerbated by anthropogenic stressors, limits recruitment and contributes to global declines of reef fish populations. Post‐Larval Capture, Culture, and Release (PCCR),
Alan Gojanovic +7 more
wiley +1 more source