Results 21 to 30 of about 252 (167)

On kernel-based estimation of conditional Kendall’s tau: finite-distance bounds and asymptotic behavior

open access: yesDependence Modeling, 2019
We study nonparametric estimators of conditional Kendall’s tau, a measure of concordance between two random variables given some covariates. We prove non-asymptotic pointwise and uniform bounds, that hold with high probabilities.
Derumigny Alexis, Fermanian Jean-David
doaj   +1 more source

2D score-based estimation of heterogeneous treatment effects

open access: yesJournal of Causal Inference, 2023
Statisticians show growing interest in estimating and analyzing heterogeneity in causal effects in observational studies. However, there usually exists a trade-off between accuracy and interpretability for developing a desirable estimator for treatment ...
Ye Steven Siwei   +2 more
doaj   +1 more source

Estimation of the tail-index in a conditional location-scale family of heavy-tailed distributions

open access: yesDependence Modeling, 2019
We introduce a location-scale model for conditional heavy-tailed distributions when the covariate is deterministic. First, nonparametric estimators of the location and scale functions are introduced.
Ahmad Aboubacrène Ag   +3 more
doaj   +1 more source

About tests of the “simplifying” assumption for conditional copulas

open access: yesDependence Modeling, 2017
We discuss the so-called “simplifying assumption” of conditional copulas in a general framework. We introduce several tests of the latter assumption for non- and semiparametric copula models.
Derumigny Alexis, Fermanian Jean-David
doaj   +1 more source

Empirical likelihood for quantile regression models with response data missing at random

open access: yesOpen Mathematics, 2017
This paper studies quantile linear regression models with response data missing at random. A quantile empirical-likelihood-based method is proposed firstly to study a quantile linear regression model with response data missing at random.
Luo S., Pang Shuxia
doaj   +1 more source

Minimally capturing heterogeneous complier effect of endogenous treatment for any outcome variable

open access: yesJournal of Causal Inference, 2023
When a binary treatment DD is possibly endogenous, a binary instrument δ\delta is often used to identify the “effect on compliers.” If covariates XX affect both DD and an outcome YY, XX should be controlled to identify the “XX-conditional complier ...
Lee Goeun   +2 more
doaj   +1 more source

Targeted maximum likelihood based estimation for longitudinal mediation analysis

open access: yesJournal of Causal Inference
Causal mediation analysis with random interventions has become an area of significant interest for understanding time-varying effects with longitudinal and survival outcomes.
Wang Zeyi   +5 more
doaj   +1 more source

Conditional Density Kernel Estimation Under Random Censorship for Functional Weak Dependence Data

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
The primary objective of this research is to investigate the asymptotic properties of the conditional density nonparametric estimator. The main areas of focus are the estimator’s consistency (with rates), including those involving censored data and quasi‐associated dependent variables, as well as its performance when the covariate is functional in ...
Hamza Daoudi   +4 more
wiley   +1 more source

Cramer-Rao type integral inequalities for general loss functions

open access: yes, 2001
Bayes risk, Cramer-Rao type integral inequality, Hajek-LeCam lower bound, locally asymptotic minimax error, lower bound, 62G05,
B. Prakasa Rao   +3 more
core   +1 more source

Nonparametric C- and D-vine-based quantile regression

open access: yesDependence Modeling, 2022
Quantile regression is a field with steadily growing importance in statistical modeling. It is a complementary method to linear regression, since computing a range of conditional quantile functions provides more accurate modeling of the stochastic ...
Tepegjozova Marija   +3 more
doaj   +1 more source

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