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We introduce two novel procedures to test the nullity of the slope function in the functional linear model with real output. The test statistics combine multiple testing ideas and random projections of the input data through functional…

统计理论 · 数学 2013-02-12 Nadine Hilgert , André Mas , Nicolas Verzelen

In the regression model with errors in variables, we observe $n$ i.i.d. copies of $(Y,Z)$ satisfying $Y=f_{\theta^0}(X)+\xi$ and $Z=X+\epsilon$ involving independent and unobserved random variables $X,\xi,\epsilon$ plus a regression…

统计理论 · 数学 2009-09-29 Cristina Butucea , Marie-Luce Taupin

This paper proposes a Lasso-type estimator for a high-dimensional sparse parameter identified by a single index conditional moment restriction (CMR). In addition to this parameter, the moment function can also depend on a nuisance function,…

统计理论 · 数学 2021-09-14 Denis Nekipelov , Vira Semenova , Vasilis Syrgkanis

Maximum likelihood estimation (MLE) is a statistical method used to estimate the parameters of a probability distribution that best explain the observed data. In the context of text generation, MLE is often used to train generative language…

计算与语言 · 计算机科学 2023-10-27 Chenze Shao , Zhengrui Ma , Min Zhang , Yang Feng

Causal mediation analysis with random interventions has become an area of significant interest for understanding time-varying effects with longitudinal and survival outcomes. To tackle causal and statistical challenges due to the complex…

统计方法学 · 统计学 2023-04-12 Zeyi Wang , Lars van der Laan , Maya Petersen , Thomas Gerds , Kajsa Kvist , Mark van der Laan

We develop an unsupervised deep learning framework for real-time scalable and generalizable downlink beamforming in multi-user multiple-input single-output (MU-MISO) systems. The proposed semi-amortized lifted learning-to-optimize (SALLO)…

机器学习 · 计算机科学 2026-04-01 Yubo Zhang , Xiao-Yang Liu , Xiaodong Wang

Continuous-time approximation of Stochastic Gradient Descent (SGD) is a crucial tool to study its escaping behaviors from stationary points. However, existing stochastic differential equation (SDE) models fail to fully capture these…

机器学习 · 统计学 2025-06-04 Xiang Li , Zebang Shen , Liang Zhang , Niao He

Estimation and inference in statistics pose significant challenges when data are collected adaptively. Even in linear models, the Ordinary Least Squares (OLS) estimator may fail to exhibit asymptotic normality for single coordinate…

统计理论 · 数学 2023-10-31 Licong Lin , Mufang Ying , Suvrojit Ghosh , Koulik Khamaru , Cun-Hui Zhang

We propose a general approach to construct weighted likelihood estimating equations with the aim of obtaining robust parameter estimates. We modify the standard likelihood equations by incorporating a weight that reflects the statistical…

The parameter estimation of unnormalized models is a challenging problem. The maximum likelihood estimation (MLE) is computationally infeasible for these models since normalizing constants are not explicitly calculated. Although some…

机器学习 · 统计学 2020-06-09 Masatoshi Uehara , Takafumi Kanamori , Takashi Takenouchi , Takeru Matsuda

We consider high-dimensional sparse regression problems in which we observe $y = X \beta + z$, where $X$ is an $n \times p$ design matrix and $z$ is an $n$-dimensional vector of independent Gaussian errors, each with variance $\sigma^2$.…

统计理论 · 数学 2015-09-25 Weijie Su , Emmanuel Candes

The problem of nonlinear functional of parameters, such as differential entropy, has received much attention in information theory and statistics. In many situations, prior information about the parameters is available in the form of order…

统计理论 · 数学 2026-03-10 Somnath Mandal , Lakshmi Kanta Patra

Machine learning (ML) models that achieve high average accuracy can still underperform on semantically coherent subsets ("slices") of data. This behavior can have significant societal consequences for the safety or bias of the model in…

人机交互 · 计算机科学 2024-02-12 Nari Johnson , Ángel Alexander Cabrera , Gregory Plumb , Ameet Talwalkar

As one of the recently proposed algorithms for sparse system identification, $l_0$ norm constraint Least Mean Square ($l_0$-LMS) algorithm modifies the cost function of the traditional method with a penalty of tap-weight sparsity. The…

信息论 · 计算机科学 2015-06-04 Guolong Su , Jian Jin , Yuantao Gu , Jian Wang

Statistical analysis of massive datasets very often implies expensive linear algebra operations with large dense matrices. Typical tasks are an estimation of unknown parameters of the underlying statistical model and prediction of missing…

统计计算 · 统计学 2021-04-16 Alexander Litvinenko , Ronald Kriemann , Vladimir Berikov

This paper provides analytical performance of the low-complexity family of affine projection algorithms on the estimation of multipath Rayleigh fading channels in the presence of carrier frequency offsets (CFO) and random channel…

数值分析 · 数学 2011-07-08 Sayed A. Hadei , Paeiz Azmi

In additive models with many nonparametric components, a number of regularized estimators have been proposed and proven to attain various error bounds under different combinations of sparsity and fixed smoothness conditions. Some of these…

统计理论 · 数学 2020-11-16 Yisha Yao , Cun-Hui Zhang

Estimating and obtaining reliable inference for the marginally adjusted causal dose-response curve for continuous treatments without relying on parametric assumptions is a well-known statistical challenge. Parametric models risk introducing…

统计方法学 · 统计学 2025-08-29 Junming Shi , Wenxin Zhang , Alan E. Hubbard , Mark van der Laan

In order to circumvent statistical and computational hardness results in sequential decision-making, recent work has considered smoothed online learning, where the distribution of data at each time is assumed to have bounded likeliehood…

机器学习 · 统计学 2024-02-26 Adam Block , Alexander Rakhlin , Abhishek Shetty

This paper discusses asymptotic distributions of various estimators of the underlying parameters in some regression models with long memory (LM) Gaussian design and nonparametric heteroscedastic LM moving average errors. In the simple…

统计理论 · 数学 2008-12-18 Hongwen Guo , Hira L. Koul