Results 31 to 40 of about 304,135 (266)

Computation of the distribution of model accuracy statistics in machine learning: Comparison between analytically derived distributions and simulation‐based methods

open access: yesHealth Science Reports, 2023
Background and Aims All fields have seen an increase in machine‐learning techniques. To accurately evaluate the efficacy of novel modeling methods, it is necessary to conduct a critical evaluation of the utilized model metrics, such as sensitivity ...
Alexander A. Huang, Samuel Y. Huang
doaj   +1 more source

Bootstrap consistency for the Mack bootstrap

open access: yesInsurance: Mathematics and Economics
Mack's distribution-free chain ladder reserving model belongs to the most popular approaches in non-life insurance mathematics. Proposed to determine the first two moments of the reserve, it does not allow to identify the whole distribution of the reserve.
Steinmetz, Julia, Jentsch, Carsten
openaire   +2 more sources

Dilation Bootstrap [PDF]

open access: yesSSRN Electronic Journal, 2011
We propose a methodology for constructing confidence regions with partially identified models of general form. The region is obtained by inverting a test of internal consistency of the econometric structure. We develop a dilation bootstrap methodology to deal with sampling uncertainty without reference to the hypothesized economic structure.
Galichon, Alfred, Henry, Marc
openaire   +3 more sources

Preoperative circulating tumor cells integrated with imaging analysis for prognostic evaluation in head and neck squamous cell carcinoma

open access: yesMolecular Oncology, EarlyView.
Detecting circulating tumor cells (CTCs) in blood before surgery may help predict outcomes in patients with head and neck squamous cell carcinoma (HNSCC). Here, we show when combined with tumor size and lymph node involvement from routine imaging, CTC status identifies high‐risk patients with poorer survival—offering a simple, minimally invasive tool ...
Susanne Flach   +9 more
wiley   +1 more source

Feedback Spillovers across Unrelated Tasks

open access: yesВопросы образования
In this paper we describe the results of a laboratory experiment involving 130 students of Lomonosov Moscow State University. The participants were asked to perform unrelated tasks involving different skills: a test of analytical skills and a capitals ...
Ekaterina A. Sinyakova   +1 more
doaj   +1 more source

MLE with datasets from populations having shared parameters

open access: yesStatistical Theory and Related Fields, 2023
We consider maximum likelihood estimation with two or more datasets sampled from different populations with shared parameters. Although more datasets with shared parameters can increase statistical accuracy, this paper shows how to handle heterogeneity ...
Jun Shao, Xinyan Wang
doaj   +1 more source

Determination of the Variance of Complex Calculated Clinical Chemistry Tests; Application in Calculated Low Density Lipoprotein and Atherogenic Index of Plasma [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2020
Introduction: Measurement uncertainty is the random error component of the measurement and is an interval around the measured value, into which the true value lies with some probability.
Christina Tsigalou   +4 more
doaj   +1 more source

The Art of Bootstrapping

open access: yes, 2020
Language workbenches are used to define languages using appropriate meta-languages. Meta-languages are also just languages and can, therefore, be defined using themselves. The process is called bootstrapping and is often difficult to achieve.
Andreas Prinz 0001, Gergely Mezei
openaire   +2 more sources

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

open access: yesFEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young   +7 more
wiley   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

open access: yesFEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard   +12 more
wiley   +1 more source

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