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The advent of universal time series forecasting models has revolutionized zero-shot forecasting across diverse domains, yet the critical role of data diversity in training these models remains underexplored. Existing large-scale time series…

Machine Learning · Computer Science 2025-05-28 Zezhi Shao , Yujie Li , Fei Wang , Chengqing Yu , Yisong Fu , Tangwen Qian , Bin Xu , Boyu Diao , Yongjun Xu , Xueqi Cheng

In real-world applications, the limited availability of labeled outcomes presents significant challenges for statistical inference due to high collection costs, technical barriers, and other constraints. In this work, we propose a method to…

Methodology · Statistics 2025-10-14 Menghan Yi , Yanlin Tang , Huixia Judy Wang

We present Domain Contrast (DC), a simple yet effective approach inspired by contrastive learning for training domain adaptive detectors. DC is deduced from the error bound minimization perspective of a transferred model, and is implemented…

Computer Vision and Pattern Recognition · Computer Science 2020-06-29 Feng Liu , Xiaoxong Zhang , Fang Wan , Xiangyang Ji , Qixiang Ye

Without access to the source data, source-free domain adaptation (SFDA) transfers knowledge from a source-domain trained model to target domains. Recently, SFDA has gained popularity due to the need to protect the data privacy of the source…

Machine Learning · Computer Science 2023-04-14 Haozhe Feng , Zhaorui Yang , Hesun Chen , Tianyu Pang , Chao Du , Minfeng Zhu , Wei Chen , Shuicheng Yan

Domain adaptation is crucial in many real-world applications where the distribution of the training data differs from the distribution of the test data. Previous Deep Learning-based approaches to domain adaptation need to be trained jointly…

Computation and Language · Computer Science 2017-02-08 Sebastian Ruder , Parsa Ghaffari , John G. Breslin

Existing domain adaptation methods assume that domain discrepancies are caused by a few discrete attributes and variations, e.g., art, real, painting, quickdraw, etc. We argue that this is not realistic as it is implausible to define the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Yinsong Xu , Zhuqing Jiang , Aidong Men , Yang Liu , Qingchao Chen

Diffusion models have emerged as a dominant approach for text-to-image generation. Key components such as the human preference alignment and classifier-free guidance play a crucial role in ensuring generation quality. However, their…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Minghao Fu , Guo-Hua Wang , Liangfu Cao , Qing-Guo Chen , Zhao Xu , Weihua Luo , Kaifu Zhang

We introduce BLAST, Bayesian Linear regression with Adaptive Shrinkage for Transfer, a Bayesian multi-source transfer learning framework for high-dimensional linear regression. The proposed analytical framework leverages global-local…

Methodology · Statistics 2026-03-10 Parsa Jamshidian , Donatello Telesca

We study the problem of distributed and rate-adaptive feature compression for linear regression. A set of distributed sensors collect disjoint features of regressor data. A fusion center is assumed to contain a pretrained linear regression…

Information Theory · Computer Science 2024-04-04 Aditya Deshmukh , Venugopal V. Veeravalli , Gunjan Verma

As transfer learning techniques are increasingly used to transfer knowledge from the source model to the target task, it becomes important to quantify which source models are suitable for a given target task without performing…

Test-time domain adaptation effectively adjusts the source domain model to accommodate unseen domain shifts in a target domain during inference. However, the model performance can be significantly impaired by continuous distribution changes…

Machine Learning · Computer Science 2024-01-29 Xingzhi Zhou , Zhiliang Tian , Ka Chun Cheung , Simon See , Nevin L. Zhang

As the volume of data continues to expand, it becomes increasingly common for data to be aggregated from multiple sources. Leveraging multiple sources for model training typically achieves better predictive performance on test datasets.…

Methodology · Statistics 2025-03-05 Congbin Xu , Chengde Qian , Zhaojun Wang , Changliang Zou

Diffusion models are relatively easy to train but require many steps to generate samples. Consistency models are far more difficult to train, but generate samples in a single step. In this paper we propose Multistep Consistency Models: A…

Machine Learning · Computer Science 2024-11-20 Jonathan Heek , Emiel Hoogeboom , Tim Salimans

Decoding from the output distributions of large language models to produce high-quality text is a complex challenge in language modeling. Various approaches, such as beam search, sampling with temperature, $k-$sampling, nucleus…

Computation and Language · Computer Science 2024-10-22 Esteban Garces Arias , Julian Rodemann , Meimingwei Li , Christian Heumann , Matthias Aßenmacher

While domain adaptation methods address data shifts, most assume target populations align with at least one source population, neglecting mixtures that combine sources influenced by factors like demographics. Additional challenges in…

Methodology · Statistics 2025-05-02 Keyao Zhan , Xin Xiong , Zijian Guo , Tianxi Cai , Molei Liu

We propose a powerful adaptive contrast test with ordinal constraint contrast coefficients determined by observed responses. The adaptive contrast test can perform using easily calculated contrast coefficients and existing statistical…

Methodology · Statistics 2021-09-23 Masahiro Kojima

Detecting change points sequentially in a streaming setting, especially when both the mean and the variance of the signal can change, is often a challenging task. A key difficulty in this context often involves setting an appropriate…

Methodology · Statistics 2022-11-01 Nauman Ahad , Mark A. Davenport , Yao Xie

The world is not static: This causes real-world time series to change over time through external, and potentially disruptive, events such as macroeconomic cycles or the COVID-19 pandemic. We present an adaptive sampling strategy that…

Since only a small number of traces generated from distributed tracing helps in troubleshooting, its storage requirement can be significantly reduced by biasing the selection towards anomalous traces. To aid in this scenario, we propose…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-10-11 Alim Ul Gias , Yicheng Gao , Matthew Sheldon , José A. Perusquía , Owen O'Brien , Giuliano Casale

A/B testing is a widely-used paradigm within marketing optimization because it promises identification of causal effects and because it is implemented out of the box in most messaging delivery software platforms. Modern businesses, however,…

Machine Learning · Computer Science 2023-05-03 Schaun Wheeler