Results 81 to 90 of about 14,515,084 (225)

An oversampling-undersampling strategy for large-scale data linkage

open access: yesFrontiers in Big Data
Effective record linkage in big data, particularly in imbalanced datasets, is a critical yet highly challenging task due to the inherent complexity involved.
Hossein Hassani   +4 more
doaj   +1 more source

Visualizing the target estimand in comparative effectiveness studies with multiple treatments

open access: yesJournal of Comparative Effectiveness Research
Aim: Comparative effectiveness research using real-world data often involves pairwise propensity score matching to adjust for confounding bias. We show that corresponding treatment effect estimates may have limited external validity, and propose two ...
Gabrielle Simoneau   +9 more
doaj   +1 more source

A Sandwich with Water: Bayesian & Frequentist Inference Under Model Misspecification

open access: yesARC Geophysical Research
In this paper we review basic elements of Frequentist inference, specifically maximum likelihood (ML) and M-estimation, to point out a critical flaw of Bayesian methods for hydrologic model training and uncertainty quantification.
Jasper A. Vrugt   +3 more
doaj   +2 more sources

Modeling Skipped Items in Cognitive Diagnostic Assessments

open access: yesSAGE Open
In cognitive diagnosis assessments, examinees frequently skip some items due to various reasons, such as time constraints, lack of confidence, or the perception of item difficulty.
Lidan Liang   +3 more
doaj   +1 more source

Generalized Metaplectic Convolution-Based Cohen's Class Time-Frequency Distribution: Theory and Application

open access: yesIEEE Open Journal of Signal Processing
The convolution type of the Cohen's class time-frequency distribution (CCTFD) is a useful and effective time-frequency analysis tool for additive noises jamming signals.
Manjun Cui   +4 more
doaj   +1 more source

Probability, Statistics, and Data Analysis.

open access: yesJournal of the American Statistical Association, 1972
J. A. Nelder   +2 more
openaire   +1 more source

College students’ psychology and behavior in the context of online public opinion: a cross-sectional study in Jiangsu Province, China

open access: yesFrontiers in Psychology
BackgroundWith the rapid development of the Internet and the widespread use of social media, online public opinion has profoundly impacted the psychology and behavior of college students.
Xiaoqing Chen   +4 more
doaj   +1 more source

Efficient detection, analysis and classification of lightning radiation fields [PDF]

open access: yes
Modeling the large scale lightning flash structure is considered. Large scale flash data has been measured from strip charts of storms of August 5, August 26, and September 12, 1975.
Harger, R. O., Tretter, S. A.
core   +1 more source

SARS-CoV-2 incidence monitoring and statistical estimation of the basic and time-varying reproduction number at the early onset of the pandemic in 45 sub-Saharan African countries

open access: yesBMC Public Health
The world battled to defeat a novel coronavirus 2019 (SARS-CoV-2 or COVID-19), a respiratory illness that is transmitted from person to person through contacts with droplets from infected persons.
Michael Safo Oduro   +4 more
doaj   +1 more source

Interval estimation of thermal summation parameters in forensically important insects

open access: yesScientific Reports
Estimating time of death based on entomological evidence commonly relies on the “law of total effective temperature”, which requires developmental parameters of specific insect taxa.
Jędrzej Wydra   +2 more
doaj   +1 more source

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