Results 21 to 30 of about 5,999 (179)
Mathematics, 2022 Shewhart X¯ control charts commonly used for monitoring the mean of a process may be inaccurate or perform poorly when the subgroup size is small or the distribution of the process variable is skewed.
Paul Braden +3 more
doaj +1 more source
Analyzing the Centers for Disease Control and Prevention Mortality Data Using Weekly Exceedance in Mortality Count and Weekly Change in Mortality Indicator: A Time Series Study. [PDF]
Health Sci RepABSTRACT Background and Aims Cause‐specific mortality (CSM) count prediction plays a vital role in the context of public health policy. In this study, we introduce a new analytical approach, which is divided into three phases to answer specific questions regarding CSM due to 14 specific causes by computing different simple, compound, and conditional ...
Chakrabarty A, Pant MD.
europepmc +2 more sources
A Simulation Study to Explore Inference about Global Moran's I with Random Spatial Indexes
Geographical Analysis, Volume 55, Issue 4, Page 621-650, October 2023., 2023 Inference procedures for spatial autocorrelation statistics assume that the underlying configurations of spatial units are fixed. However, sometimes this assumption can be disadvantageous, for example, when analyzing social media posts or moving objects.
René Westerholt
wiley +1 more source
Improved inference for a boundary parameter
Canadian Journal of Statistics, Volume 51, Issue 3, Page 780-799, September 2023., 2023 Abstract The limiting distributions of statistics used to test hypotheses about parameters on the boundary of their domains may provide very poor approximations to the finite‐sample behaviour of these statistics, even for very large samples. We review theoretical work on this problem, describe hard and soft boundaries and iceberg estimators, and give ...
Soumaya Elkantassi +3 more
wiley +1 more source
Origin of the Bürgi‐Dunitz Angle
ChemPhysChem, Volume 24, Issue 17, September 1, 2023., 2023 Everybody likes Bürgi‐Dunitz! Quantitative bonding analyses show that the obtuse Bürgi‐Dunitz trajectory is favored over the perpendicular approach of a nucleophile to carbonyl group by each key bonding term: i) electrostatic interactions; ii) Pauli repulsion between nucleophile HOMO and ketone π(C=O); and iii) HOMO(nucleophile)‐π*(C=O) LUMO orbital ...
Humberto A. Rodríguez +2 more
wiley +1 more source
Saddlepoint approximations as smoothers [PDF]
Biometrika, 2002 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Davison, A. C., Wang, Suojin
openaire +1 more source
Online deep Bingham network for probabilistic orientation estimation
IET Computer Vision, Volume 17, Issue 6, Page 663-675, September 2023., 2023 In terms of computation overhead of the Bingham normalisation constant and uncertain choice of the loss function, we present an online deep Bingham network to estimate the orientation of objects and give theorems of the chosen loss function. The result shows that our method outperforms the state‐of‐the‐art in orientation accuracy and time efficiency ...
Wenjie Li +6 more
wiley +1 more source
Statistics in Medicine, Volume 42, Issue 16, Page 2746-2759, 20 July 2023., 2023 We investigate saddlepoint approximations of tail probabilities of the score test statistic in logistic regression for genome‐wide association studies. The inaccuracy in the normal approximation of the score test statistic increases with increasing imbalance in the response and with decreasing minor allele counts.
Pål V. Johnsen +4 more
wiley +1 more source
Fast and accurate recurrent event analysis for genome‐wide association studies
Genetic Epidemiology, Volume 47, Issue 5, Page 365-378, July 2023., 2023 Abstract Many diseases recur after recovery, for example, recurrences in cancer and infections. However, research is often focused on analysing only time‐to‐first recurrence, thereby ignoring any subsequent recurrences that may occur after the first.
Jasper P. Hof +3 more
wiley +1 more source
Revstat Statistical Journal, 2009 The approximation for the distribution function of a test statistic is extremely important in statistics. A distribution-free test for stochastic ordering in the competing risks model has been proposed by Bagai et al. (1989).
Hidetoshi Murakami
doaj +1 more source