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相关论文: Rank-based estimation for all-pass time series mod…

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Among the many estimators of first order Sobol indices that have been proposed in the literature, the so-called rank-based estimator is arguably the simplest to implement. This estimator can be viewed as the empirical auto-correlation of…

统计理论 · 数学 2023-06-12 Thierry Klein , Paul Rochet

Functional autoregressive (FAR) models provide a fundamental framework for analyzing temporally dependent functional data. However, the infinite-dimensional nature of the underlying Hilbert space introduces intrinsic ill-posedness, as the…

统计方法学 · 统计学 2025-11-17 Ying Niu , Yuwei Zhao , Zhao Chen , Christina Dan Wang

We consider nonparametric estimation for functional autoregressive processes with Markov switching. First, we study the case where complete data is available; i.e. when we observe the Markov switching regime. Then we estimate the regression…

统计理论 · 数学 2017-04-25 Lisandro Fermín , Ricardo Ríos , Luis-Angel Rodríguez

In this paper, we consider the estimation of generalized linear models with covariates that are missing completely at random. We propose a model averaging estimation method and prove that the corresponding model averaging estimator is…

统计理论 · 数学 2017-10-26 Qingfeng Liu , Miaomiao Zheng

We study the existence, strong consistency and asymptotic normality of estimators obtained from estimating functions, that are p-dimensional martingale transforms. The problem is motivated by the analysis of evolutionary clustered data,…

统计理论 · 数学 2020-12-01 Laura Dumitrescu , Ioana Schiopu-Kratina

We consider a recursive algorithm to construct an aggregated estimator from a finite number of base decision rules in the classification problem. The estimator approximately minimizes a convex risk functional under the l1-constraint. It is…

统计理论 · 数学 2007-06-13 Anatoli Juditsky , Alexander Nazin , Alexandre Tsybakov , Nicolas Vayatis

The empirical loss, commonly referred to as the average loss, is extensively utilized for training machine learning models. However, in order to address the diverse performance requirements of machine learning models, the use of the…

最优化与控制 · 数学 2024-01-04 Rufeng Xiao , Yuze Ge , Rujun Jiang , Yifan Yan

We consider a network of sensors deployed to sense a spatio-temporal field and estimate a parameter of interest. We are interested in the case where the temporal process sensed by each sensor can be modeled as a state-space process that is…

分布式、并行与集群计算 · 计算机科学 2008-04-12 S. Sundhar Ram , V. V. Veeravalli , A. Nedic

Thomas' partial likelihood estimator of regression parameters is widely used in the analysis of nested case-control data with Cox's model. This paper proposes a new estimator of the regression parameters, which is consistent and…

统计理论 · 数学 2007-06-13 Kani Chen

In this short note I apply the methodology of game-theoretic probability to calculating non-asymptotic confidence intervals for the coefficient of a simple first order scalar autoregressive model. The most distinctive feature of the…

统计理论 · 数学 2011-11-10 Vladimir Vovk

This paper discusses infill asymptotics for logistic regression estimators for spatio-temporal point processes whose intensity functions are of log-linear form. We establish strong consistency and asymptotic normality for the parameters of…

统计理论 · 数学 2022-08-26 M. N. M. van Lieshout , C. Lu

Autoregressive models are a class of time series models that are important in both applied and theoretical statistics. Typically, inferential devices such as confidence sets and hypothesis tests for time series models require nuanced…

统计理论 · 数学 2022-01-19 Hien Duy Nguyen

We present $\Gamma$-nets, a method for generalizing value function estimation over timescale. By using the timescale as one of the estimator's inputs we can estimate value for arbitrary timescales. As a result, the prediction target for any…

机器学习 · 计算机科学 2020-10-20 Craig Sherstan , Shibhansh Dohare , James MacGlashan , Johannes Günther , Patrick M. Pilarski

In this paper, we consider the problem of estimating the marginal density in some nonlinear autoregressive time series models for which the conditional mean and variance have a parametric specification. Under some regularity conditions, we…

统计理论 · 数学 2016-10-31 Lionel Truquet

A new class of general exponential ranking models is introduced which we label angle-based models for ranking data. A consensus score vector is assumed, which assigns scores to a set of items, where the scores reflect a consensus view of…

统计方法学 · 统计学 2017-12-27 Hang Xu , Mayer Alvo , Philip L. H. Yu

The paper considers the problem of distributed adaptive linear parameter estimation in multi-agent inference networks. Local sensing model information is only partially available at the agents and inter-agent communication is assumed to be…

最优化与控制 · 数学 2012-08-07 Soummya Kar , Jose' M. F. Moura , H. Vincent Poor

This paper studies a class of exponential family models whose canonical parameters are specified as linear functionals of an unknown infinite-dimensional slope function. The optimal minimax rates of convergence for slope function estimation…

统计理论 · 数学 2013-02-14 Winston Wei Dou , David Pollard , Harrison H. Zhou

A popular technique for selecting and tuning machine learning estimators is cross-validation. Cross-validation evaluates overall model fit, usually in terms of predictive accuracy. In causal inference, the optimal choice of estimator…

统计方法学 · 统计学 2021-07-07 Dominik Rothenhäusler

This paper studies a class of exponential family models whose canonical parameters are specified as linear functionals of an unknown infinite-dimensional slope function. The optimal minimax rates of convergence for slope function estimation…

统计理论 · 数学 2011-12-25 Winston Wei Dou , David Pollard , Harrison H. Zhou

The bootstrap procedure has emerged as a general framework to construct prediction intervals for future observations in autoregressive time series models. Such models with outlying data points are standard in real data applications,…

统计方法学 · 统计学 2020-11-17 Ufuk Beyaztas , Han Lin Shang