中文
相关论文

相关论文: Model selection in High-Dimensions: A Quadratic-ri…

200 篇论文

We introduce a predictive model that estimates the pre-training loss of large models from model size (N), batch size (B) and number of weight updates (K). This is the first loss prediction model that can handle changing batch size. The…

机器学习 · 计算机科学 2026-05-12 Chuning Li , Chris J. Maddison

Distance metric learning can be viewed as one of the fundamental interests in pattern recognition and machine learning, which plays a pivotal role in the performance of many learning methods. One of the effective methods in learning such a…

机器学习 · 计算机科学 2020-02-21 Mostafa Razavi Ghods , Mohammad Hossein Moattar , Yahya Forghani

Computer experiments with quantitative and qualitative inputs are widely used to study many scientific and engineering processes. Much of the existing work has focused on design and modeling or process optimization for such experiments.…

统计方法学 · 统计学 2025-04-30 A. Shahrokhian , X. Deng , C. D. Lin , P. Ranjan , L. Xu

Mixture distributions provide a versatile and widely used framework for modeling random phenomena, and are particularly well-suited to the analysis of geoscientific processes and their attendant risks to society. For continuous mixtures of…

机器学习 · 统计学 2025-06-18 Michael R. Powers , Jiaxin Xu

We consider a generalization of the classifier-based density-ratio estimation task to a quasiprobabilistic setting where probability densities can be negative. The problem with most loss functions used for this task is that they implicitly…

机器学习 · 统计学 2025-12-24 Matthew Drnevich , Stephen Jiggins , Kyle Cranmer

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

The semiparametric linear hazard regression model introduced by McKeague and Sasieni (1994) is an extension of the linear hazard regression model developed by Aalen (1980). Methods of model selection for this type of model are still…

统计方法学 · 统计学 2026-03-04 Axel Gandy , Nils Lid Hjort

In machine learning, accurately predicting the probability that a specific input is correct is crucial for risk management. This process, known as uncertainty (or confidence) estimation, is particularly important in mission-critical…

机器学习 · 计算机科学 2023-01-12 Gabriella Chouraqui , Liron Cohen , Gil Einziger , Liel Leman

Mean-deviation models, along with the existing theory of coherent risk measures, are well studied in the literature. In this paper, we characterize monotonic mean-deviation (risk) measures from a general mean-deviation model by applying a…

风险管理 · 定量金融 2024-08-12 Xia Han , Ruodu Wang , Qinyu Wu

Non-concave penalized maximum likelihood methods, such as the Bridge, the SCAD, and the MCP, are widely used because they not only do parameter estimation and variable selection simultaneously but also have a high efficiency as compared to…

统计方法学 · 统计学 2015-12-31 Yuta Umezu , Yusuke Shimizu , Hiroki Masuda , Yoshiyuki Ninomiya

We consider a model selection problem for structural equation modeling (SEM) with latent variables for diffusion processes based on high-frequency data. First, we propose the quasi-Akaike information criterion of the SEM and study the…

统计理论 · 数学 2024-02-15 Shogo Kusano , Masayuki Uchida

Generalized additive model is a powerful statistical learning and predictive modeling tool that has been applied in a wide range of applications. The need of high-dimensional additive modeling is eminent in the context of dealing with high…

统计方法学 · 统计学 2021-07-08 Kaixu Yang , Tapabrata Maiti

The failure rate function plays an important role in studying the lifetime distributions in reliability theory and life testing models. A study of the general failure rate model $r(t)=a+bt^{\theta-1}$, under squared error loss function…

统计计算 · 统计学 2014-05-23 Asok K. Nanda , Sudhansu S. Maiti , Chanchal Kundu , Amarjit Kundu

Accurate estimation of long-term risk is essential for the design and analysis of stochastic dynamical systems. Existing risk quantification methods typically rely on extensive datasets involving risk events observed over extended time…

机器学习 · 计算机科学 2025-10-09 Zhuoyuan Wang , Albert Chern , Yorie Nakahira

The maximum likelihood estimator is used to determine fit parameters for various parametric models of the Fourier periodogram followed by the selection of the best fit model amongst competing models using the Akaike information criteria.…

星系天体物理 · 物理学 2015-06-19 P. Mohan , A. Mangalam , S. Chattopadhyay

We propose new model selection criteria based on generalized ridge estimators dominating the maximum likelihood estimator under the squared risk and the Kullback-Leibler risk in multivariate linear regression. Our model selection criteria…

统计理论 · 数学 2016-04-08 Yuichi Mori , Taiji Suzuki

In this paper, we introduce a general theoretical framework for nonparametric hazard rate estimation using associated kernels, whose shapes depend on the point of estimation. Within this framework, we establish rigorous asymptotic results,…

统计理论 · 数学 2025-10-07 Luce Breuil , Sarah Kaakaï

Deep-learning architectures for classification problems involve the cross-entropy loss sometimes assisted with auxiliary loss functions like center loss, contrastive loss and triplet loss. These auxiliary loss functions facilitate better…

计算机视觉与模式识别 · 计算机科学 2020-04-22 Hongjun Choi , Anirudh Som , Pavan Turaga

The canonical partition function approach was designed to avoid the overlap problem that affects the lattice simulations of nuclear matter at high density. The method employs the projections of the quark determinant on a fix quark number…

高能物理 - 格点 · 物理学 2010-01-21 Xiangfei Meng , Anyi Li , Andrei Alexandru , Keh-Fei Liu

We propose a constrained maximum partial likelihood estimator for dimension reduction in integrative (e.g., pan-cancer) survival analysis with high-dimensional covariates. We assume that for each population in the study, the hazard function…

统计方法学 · 统计学 2023-04-27 Aaron J. Molstad , Rohit K. Patra