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相关论文: Low-rank model with covariates for count data anal…

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We develop and analyze data subsampling techniques for Poisson regression, the standard model for count data $y\in\mathbb{N}$. In particular, we consider the Poisson generalized linear model with ID- and square root-link functions. We…

机器学习 · 计算机科学 2025-03-20 Han Cheng Lie , Alexander Munteanu

This paper proposes a novel testing procedure for selecting a sparse set of covariates that explains a large dimensional panel. Our selection method provides correct false detection control while having higher power than existing…

计量经济学 · 经济学 2023-03-09 Markus Pelger , Jiacheng Zou

Fr\'echet regression has emerged as a useful tool for modeling non-Euclidean response variables associated with Euclidean covariates. In this work, we propose a global Fr\'echet regression estimation method that incorporates low-rank…

统计方法学 · 统计学 2025-05-09 Kyunghee Han , Hsin-Hsiung Huang

Low-Rank Adaptation (LoRA) is a popular technique for parameter-efficient fine-tuning of Large Language Models (LLMs). We study how different LoRA modules can be merged to achieve skill composition -- testing the performance of the merged…

计算与语言 · 计算机科学 2024-12-03 Akshara Prabhakar , Yuanzhi Li , Karthik Narasimhan , Sham Kakade , Eran Malach , Samy Jelassi

Count data with an excessive number of zeros frequently arise in fields such as economics, medicine, and public health. Traditional count models often fail to adequately handle such data, especially when the relationship between the…

统计方法学 · 统计学 2026-02-25 María José Llop , Andrea Bergesio , Anne-Françoise Yao

When analyzing data from randomized clinical trials, covariate adjustment can be used to account for chance imbalance in baseline covariates and to increase precision of the treatment effect estimate. A practical barrier to covariate…

统计方法学 · 统计学 2023-07-04 Chia-Rui Chang , Yue Song , Fan Li , Rui Wang

In this work, we demonstrate how Low-Rank Adaptation (LoRA) can be used to combine different galaxy imaging datasets to improve redshift estimation with CNN models for cosmology. LoRA is an established technique for large language models…

天体物理仪器与方法 · 物理学 2026-01-05 Vikram Seenivasan , Srinath Saikrishnan , Andrew Lizarraga , Jonathan Soriano , Bernie Boscoe , Tuan Do

For data with high-dimensional covariates but small to moderate sample sizes, the analysis of single datasets often generates unsatisfactory results. The integrative analysis of multiple independent datasets provides an effective way of…

统计方法学 · 统计学 2015-01-19 Yuan Huang , Qingzhao Zhang , Sanguo Zhang , Jian Huang , Shuangge Ma

Multiple systems estimation strategies have recently been applied to quantify hard-to-reach populations, particularly when estimating the number of victims of human trafficking and modern slavery. In such contexts, it is not uncommon to see…

统计方法学 · 统计学 2020-03-06 Lax Chan , Bernard W. Silverman , Kyle Vincent

Deep learning models in satellite onboard enable real-time interpretation of remote sensing images, reducing the need for data transmission to the ground and conserving communication resources. As satellite numbers and observation…

计算机视觉与模式识别 · 计算机科学 2024-06-05 Xinyang Pu , Feng Xu

Low-rank adaptation (LoRA) is a popular method for fine-tuning large-scale pre-trained models in downstream tasks by learning low-rank incremental matrices. Though LoRA and its variants effectively reduce the number of trainable parameters…

机器学习 · 计算机科学 2024-03-21 Rushi Qiang , Ruiyi Zhang , Pengtao Xie

The large-scale multiple testing inherent to high throughput biological data necessitates very high statistical stringency and thus true effects in data are difficult to detect unless they have high effect sizes. One promising approach for…

统计方法学 · 统计学 2022-03-14 Mohamad Hasan , Paul Schliekelman

Large spatial datasets are becoming ubiquitous in environmental sciences with the explosion in the amount of data produced by sensors that monitor and measure the Earth system. Consequently, the geostatistical analysis of these data…

统计理论 · 数学 2018-06-06 Thomas Romary , Nicolas Desassis

Low-rank modeling plays a pivotal role in signal processing and machine learning, with applications ranging from collaborative filtering, video surveillance, medical imaging, to dimensionality reduction and adaptive filtering. Many modern…

机器学习 · 统计学 2018-05-04 Yudong Chen , Yuejie Chi

With the rapid growth of user historical behavior data, user interest modeling has become a prominent aspect in Click-Through Rate (CTR) prediction, focusing on learning user intent representations. However, this complexity poses…

信息检索 · 计算机科学 2025-05-09 Xin Song , Xiaochen Li , Jinxin Hu , Hong Wen , Zulong Chen , Yu Zhang , Xiaoyi Zeng , Jing Zhang

Many potential applications of reinforcement learning (RL) are stymied by the large numbers of samples required to learn an effective policy. This is especially true when applying RL to real-world control tasks, e.g. in the sciences or…

Low-rank adaptation (LoRA) has been prominently employed for parameter-efficient fine-tuning of large language models (LLMs). However, the limited expressive capacity of LoRA, stemming from the low-rank constraint, has been recognized as a…

计算与语言 · 计算机科学 2025-03-18 Zhiwei He , Zhaopeng Tu , Xing Wang , Xingyu Chen , Zhijie Wang , Jiahao Xu , Tian Liang , Wenxiang Jiao , Zhuosheng Zhang , Rui Wang

The Poisson distribution is the default choice of likelihood for probabilistic models of count data. However, due to the equidispersion contraint of the Poisson, such models may have predictive uncertainty that is artificially inflated.…

统计方法学 · 统计学 2025-07-15 Jimmy Lederman , Aaron Schein

Imputing missing values is an important preprocessing step in data analysis, but the literature offers little guidance on how to choose between different imputation models. This letter suggests adopting the imputation model that generates a…

统计方法学 · 统计学 2021-07-13 Moritz Marbach

Low-rank adaptations (LoRA) are widely used to fine-tune large models across various domains for specific downstream tasks. While task-specific LoRAs are often available, concerns about data privacy and intellectual property can restrict…

机器学习 · 计算机科学 2025-04-16 Hongxu Chen , Runshi Li , Bowei Zhu , Zhen Wang , Long Chen