Results 1 to 10 of about 1,041 (96)

Accelerating the Pool-Adjacent-Violators Algorithm for Isotonic Distributional Regression [PDF]

open access: yesMethodology and Computing in Applied Probability, 2022
In the context of estimating stochastically ordered distribution functions, the pool-adjacent-violators algorithm (PAVA) can be modified such that the computation times are reduced substantially.
Alexander Henzi, Alexandre Mösching
exaly   +4 more sources

In the context of forensic casework, are there meaningful metrics of the degree of calibration? [PDF]

open access: yesForensic Science International: Synergy, 2021
Forensic-evaluation systems should output likelihood-ratio values that are well calibrated. If they do not, their output will be misleading. Unless a forensic-evaluation system is intrinsically well-calibrated, it should be calibrated using a ...
Geoffrey Stewart Morrison
doaj   +3 more sources

Fast online deconvolution of calcium imaging data. [PDF]

open access: yesPLoS Computational Biology, 2017
Fluorescent calcium indicators are a popular means for observing the spiking activity of large neuronal populations, but extracting the activity of each neuron from raw fluorescence calcium imaging data is a nontrivial problem.
Johannes Friedrich   +2 more
doaj   +3 more sources

Monotone Regression: A Simple and Fast O(n) PAVA Implementation

open access: yesJournal of Statistical Software, 2022
Efficient coding and improvements in the execution order of the up-and-down-blocks algorithm for monotone or isotonic regression leads to a significant increase in speed as well as a short and simple O(n) implementation.
Frank M. T. A. Busing
doaj   +2 more sources

meta.shrinkage: An R Package for Meta-Analyses for Simultaneously Estimating Individual Means

open access: yesAlgorithms, 2022
Meta-analysis is an indispensable tool for synthesizing statistical results obtained from individual studies. Recently, non-Bayesian estimators for individual means were proposed by applying three methods: the James–Stein (JS) shrinkage estimator ...
Nanami Taketomi   +3 more
doaj   +2 more sources

Stable reliability diagrams for probabilistic classifiers. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Significance Probabilistic classifiers assign predictive probabilities to binary events, such as rainfall tomorrow, a recession, or a personal health outcome.
Dimitriadis T, Gneiting T, Jordan AI.
europepmc   +3 more sources

Isotone Optimization in R: Pool-Adjacent-Violators Algorithm (PAVA) and Active Set Methods

open access: yesJournal of Statistical Software, 2009
In this paper we give a general framework for isotone optimization. First we discuss a generalized version of the pool-adjacent-violators algorithm (PAVA) to minimize a separable convex function with simple chain constraints.
Jan de Leeuw, Kurt Hornik, Patrick Mair
doaj   +2 more sources

Improving Maximum Tolerated Dose Selection in Model-Assisted Designs for Phase I Trials Through Bayesian Dose-Response Model. [PDF]

open access: yesPharm Stat
Model‐assisted designs have garnered significant attention in recent years due to their high accuracy in identifying the maximum tolerated dose (MTD) and their operational simplicity. To identify the MTD, they employ estimated dose limiting toxicity (DLT)
Wakayama R, Momozaki T, Ando S.
europepmc   +2 more sources

Better synonyms for enriching biomedical search. [PDF]

open access: yesJ Am Med Inform Assoc, 2020
OBJECTIVE In a biomedical literature search, the link between a query and a document is often not established, because they use different terms to refer to the same concept.
Yeganova L   +5 more
europepmc   +2 more sources

Likelihood Ratios for Deep Neural Networks in Face Comparison. [PDF]

open access: yesJ Forensic Sci, 2020
In this study, we aim to compare the performance of systems and forensic facial comparison experts in terms of likelihood ratio computation to assess the potential of the machine to support the human expert in the courtroom. In forensics, transparency in
Macarulla Rodriguez A   +2 more
europepmc   +2 more sources

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