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This paper develops an incremental learning algorithm based on quadratic inference function (QIF) to analyze streaming datasets with correlated outcomes such as longitudinal data and clustered data. We propose a renewable QIF (RenewQIF)…

统计方法学 · 统计学 2021-07-01 Lan Luo , Ling Zhou , Peter X. -K. Song

Quantile estimation is a problem presented in fields such as quality control, hydrology, and economics. There are different techniques to estimate such quantiles. Nevertheless, these techniques use an overall fit of the sample when the…

In this paper, we propose a novel neural network approach, termed DeepRTE, to address the steady-state Radiative Transfer Equation (RTE). The RTE is a differential-integral equation that governs the propagation of radiation through a…

机器学习 · 计算机科学 2025-10-30 Yekun Zhu , Min Tang , Zheng Ma

Large language models (LLMs) have shown remarkable reasoning capabilities, yet aligning such abilities to small language models (SLMs) remains a challenge due to distributional mismatches and limited model capacity. Existing reasoning…

计算与语言 · 计算机科学 2025-05-28 Yong Wu , Weihang Pan , Ke Li , Chen Binhui , Ping Li , Binbin Lin

Survival analysis is a classic problem in statistics with important applications in healthcare. Most machine learning models for survival analysis are black-box models, limiting their use in healthcare settings where interpretability is…

机器学习 · 计算机科学 2024-11-12 Mike Van Ness , Billy Block , Madeleine Udell

Item Response Theory (IRT) is a powerful statistical approach for evaluating test items and determining test taker abilities through response analysis. An IRT model that better fits the data leads to more accurate latent trait estimates. In…

机器学习 · 统计学 2024-10-03 Joakim Wallmark , Maria Josefsson , Marie Wiberg

Accurate forecasting of zero coupon bond yields for a continuum of maturities is paramount to bond portfolio management and derivative security pricing. Yet a universal model for yield curve forecasting has been elusive, and prior attempts…

应用统计 · 统计学 2012-09-28 Spencer Hays , Haipeng Shen , Jianhua Z. Huang

Diffusion models have emerged as powerful generative frameworks by progressively adding noise to data through a forward process and then reversing this process to generate realistic samples. While these models have achieved strong…

机器学习 · 计算机科学 2025-03-04 Xingzhuo Guo , Yu Zhang , Baixu Chen , Haoran Xu , Jianmin Wang , Mingsheng Long

Iterative Proportional Fitting (IPF), combined with EM, is commonly used as an algorithm for likelihood maximization in undirected graphical models. In this paper, we present two iterative algorithms that generalize upon IPF. The first one…

机器学习 · 计算机科学 2013-01-07 Wim Wiegerinck , Tom Heskes

An emerging area of research aims to learn deep generative models with limited training data. Prior generative models like GANs and diffusion models require a lot of data to perform well, and their performance degrades when they are trained…

计算机视觉与模式识别 · 计算机科学 2024-09-27 Chirag Vashist , Shichong Peng , Ke Li

Reward models (RMs) are essential in reinforcement learning from human feedback (RLHF) to align large language models (LLMs) with human values. However, RM training data is commonly recognized as low-quality, containing inductive biases…

Trajectory prediction methods have been widely applied in autonomous driving technologies. Although the overall performance accuracy of trajectory prediction is relatively high, the lack of trajectory data in critical scenarios in the…

机器学习 · 计算机科学 2025-05-29 Junlan Chen , Pei Liu , Zihao Zhang , Hongyi Zhao , Yufei Ji , Ziyuan Pu

Generating executable CAD programs from images requires alignment between visual geometry and symbolic program representations, a capability that current methods fail to learn reliably as design complexity increases. Existing fine-tuning…

机器学习 · 计算机科学 2026-03-31 Giorgio Giannone , Anna Clare Doris , Amin Heyrani Nobari , Kai Xu , Akash Srivastava , Faez Ahmed

Dispersion curves characterize the frequency dependence of the phase and the group velocities of propagating elastic waves. Many analytical and numerical techniques produce dispersion curves from physics-based models. However, it is often…

数据分析、统计与概率 · 物理学 2021-10-26 V. V. N. Sriram Malladi , Mohammad I. Albakri , Manu Krishnan , Serkan Gugercin , Pablo A. Tarazaga

Drift theory is an intuitive tool for reasoning about random processes: It allows turning expected stepwise changes into expected first-hitting times. While drift theory is used extensively by the community studying randomized search…

概率论 · 数学 2023-07-07 Andreas Göbel , Timo Kötzing , Martin S. Krejca

Prompt-based continual learning provides a rehearsal-free solution by tuning small sets of parameters while keeping pre-trained models frozen. To meet the complex demands of sequential tasks, it is crucial to integrate task-specific…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Kiseong Hong , Gyeong-hyeon Kim , Eunwoo Kim

Accurate probabilistic load forecasting is crucial for maintaining the safety and stability of power systems. However, the mainstream approach, multi-step prediction, is hindered by cumulative errors and forecasting lags, which limits its…

系统与控制 · 电气工程与系统科学 2025-10-07 Han Guo , Ding Lin

Deep reinforcement learning policies achieve strong performance in complex continuous control environments with nonlinear contact forces. However, these policies often produce chaotic state dynamics, with trivially small changes to the…

机器学习 · 计算机科学 2026-04-28 Rory Young , Nicolas Pugeault

Dominant approaches for modelling Partial Differential Equations (PDEs) rely on deterministic predictions, yet many physical systems of interest are inherently chaotic and uncertain. While training probabilistic models from scratch is…

机器学习 · 计算机科学 2026-03-03 Cristiana Diaconu , Miles Cranmer , Richard E. Turner , Tanya Marwah , Payel Mukhopadhyay

Automated feature engineering (AutoFE) is the process of automatically building and selecting new features that help improve downstream predictive performance. While traditional feature engineering requires significant domain expertise and…

机器学习 · 计算机科学 2025-02-28 Tom Overman , Diego Klabjan , Jean Utke