Results 11 to 20 of about 12,794 (158)

Adaptive Reconstruction of Imperfectly Observed Monotone Functions, with Applications to Uncertainty Quantification

open access: yesAlgorithms, 2020
Motivated by the desire to numerically calculate rigorous upper and lower bounds on deviation probabilities over large classes of probability distributions, we present an adaptive algorithm for the reconstruction of increasing real-valued functions ...
Luc Bonnet   +3 more
doaj   +1 more source

A regression based phase I clinical trial for late-onset toxicities without clinician elicitation

open access: yesContemporary Clinical Trials Communications, 2019
An extension of the isotonic regression based phase I clinical trial design is presented that incorporates partial follow-up times into estimation of the raw toxicity probabilities.
Andrew G. Chapple   +2 more
doaj   +1 more source

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   +1 more source

Comparative analysis of parametric Lorenz curves and alternative convex models with isotonic regression for estimating the Lorenz curve [PDF]

open access: yesJournal of Mahani Mathematical Research
This study develops a systematic comparative framework for estimating Lorenz curves and Gini coefficients, addressing key methodological gaps in measuring income inequality.
Zahra Behdani
doaj   +1 more source

The role of the host—Neutrophil biology

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract Neutrophilic polymorphonuclear leukocytes (neutrophils) are myeloid cells packed with lysosomal granules (hence also called granulocytes) that contain a formidable antimicrobial arsenal. They are terminally differentiated cells that play a critical role in acute and chronic inflammation, as well as in the resolution of inflammation and wound ...
Iain L. C. Chapple   +4 more
wiley   +1 more source

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   +1 more source

BN parameter learning based on improved QMAP algorithm under small data set conditions

open access: yesXi'an Gongcheng Daxue xuebao, 2023
Under the condition of Bayesian network (BN) small data set, the qualitative maximum a posteriori (QMAP) estimation tends to violate expert constraints, which causes the QMAP estimation to deviate the true value.
CHEN Haiyang   +3 more
doaj   +1 more source

A dual active set algorithm for optimal sparse convex regression

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
The shape-constrained problems in statistics have attracted much attention in recent decades. One of them is the task of finding the best fitting monotone regression. The problem of constructing monotone regression (also called isotonic regression) is to
Aleksandr A. Gudkov   +3 more
doaj   +3 more sources

Assessment of data intelligence algorithms in modeling daily reference evapotranspiration under input data limitation scenarios in semi-arid climatic condition

open access: yesWater Science and Technology, 2023
Crop evapotranspiration is essential for planning and designing an efficient irrigation system. The present investigation assessed the capability of four machine learning algorithms, namely, XGBoost linear regression (XGBoost Linear), XGBoost Ensemble ...
Jitendra Rajput   +6 more
doaj   +1 more source

Unbiased Isotonic Regression Tree for Discovering Hidden Heterogeneity in Monotonicity Constraints

open access: yesApplied Sciences
Integrating domain knowledge is increasingly recognized as vital for improving the relevance and reliability of machine learning models. This integration is often implemented through specific types of constraints that reflect real-world conditions or ...
Doowon Choi
doaj   +1 more source

Home - About - Disclaimer - Privacy