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Mixup is a popular data augmentation technique based on taking convex combinations of pairs of examples and their labels. This simple technique has been shown to substantially improve both the robustness and the generalization of the…

机器学习 · 计算机科学 2021-03-19 Linjun Zhang , Zhun Deng , Kenji Kawaguchi , Amirata Ghorbani , James Zou

Data augmentation (DA) turns seemingly intractable computational problems into simple ones by augmenting latent missing data. In addition to computational simplicity, it is now well-established that DA equipped with a deterministic…

统计方法学 · 统计学 2020-05-26 Hyungsuk Tak , Kisung You , Sujit K. Ghosh , Bingyue Su , Joseph Kelly

Training data attribution (TDA) methods aim to measure how training data impacts a model's predictions. While gradient-based attribution methods, such as influence functions, offer theoretical grounding, their computational costs make them…

机器学习 · 计算机科学 2025-11-27 Weiwei Sun , Haokun Liu , Nikhil Kandpal , Colin Raffel , Yiming Yang

Ensemble modeling has been widely used to solve complex problems as it helps to improve overall performance and generalization. In this paper, we propose a novel TemporalAugmenter approach based on ensemble modeling for augmenting the…

机器学习 · 计算机科学 2024-01-17 Nelly Elsayed , Constantinos L. Zekios , Navid Asadizanjani , Zag ElSayed

The high costs of annotating large datasets suggests a need for effectively training CNNs with limited data, and data augmentation is a promising direction. We study foundational augmentation techniques, including Mixed Sample Data…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Swarna Kamlam Ravindran , Carlo Tomasi

Missing values in multivariate time series data can harm machine learning performance and introduce bias. These gaps arise from sensor malfunctions, blackouts, and human error and are typically addressed by data imputation. Previous work…

机器学习 · 计算机科学 2025-03-04 Mohammad Rafid Ul Islam , Prasad Tadepalli , Alan Fern

Data augmentation is commonly used to encode invariances in learning methods. However, this process is often performed in an inefficient manner, as artificial examples are created by applying a number of transformations to all points in the…

机器学习 · 计算机科学 2019-03-04 Michael Kuchnik , Virginia Smith

Quantum or quantum-inspired Ising machines have recently shown promise in solving combinatorial optimization problems in a short time. Real-world applications, such as time division multiple access (TDMA) scheduling for wireless multi-hop…

新兴技术 · 计算机科学 2025-04-03 Yohei Hamakawa , Tomoya Kashimata , Masaya Yamasaki , Kosuke Tatsumura

Long-term time-series forecasting remains challenging due to the difficulty in capturing long-term dependencies, achieving linear scalability, and maintaining computational efficiency. We introduce TimeMachine, an innovative model that…

机器学习 · 计算机科学 2024-08-26 Md Atik Ahamed , Qiang Cheng

The electricity sector is undergoing substantial transformations due to the rising electrification of demand, enhanced integration of renewable energy resources, and the emergence of new technologies. These changes are rendering the…

机器学习 · 计算机科学 2025-12-23 Ali Menati , Fatemeh Doudi , Dileep Kalathil , Le Xie

Healthcare data frequently contain a substantial proportion of missing values, necessitating effective time series imputation to support downstream disease diagnosis tasks. However, existing imputation methods focus on discrete data points…

机器学习 · 计算机科学 2025-05-19 Mengxuan Li , Ke Liu , Jialong Guo , Jiajun Bu , Hongwei Wang , Haishuai Wang

Time series analysis remains a major challenge due to its sparse characteristics, high dimensionality, and inconsistent data quality. Recent advancements in transformer-based techniques have enhanced capabilities in forecasting and…

机器学习 · 计算机科学 2024-05-29 Robert Leppich , Vanessa Borst , Veronika Lesch , Samuel Kounev

In hierarchical forecasting, the process of forecast reconciliation transforms a set of "base" or "raw" forecasts, which do not satisfy the hierarchical aggregation constraints in the real data, into a set of "coherent" forecasts, which do…

统计方法学 · 统计学 2026-05-29 Minh Nguyen , Farshid Vahid , Shanika L Wickramasuriya

To solve the problem of poor performance of deep neural network models due to insufficient data, a simple yet effective interpolation-based data augmentation method is proposed: MSMix (Manifold Swap Mixup). This method feeds two different…

机器学习 · 计算机科学 2023-06-01 Mao Ye , Haitao Wang , Zheqian Chen

Multiple imputation provides an effective way to handle missing data. When several possible models are under consideration for the data, the multiple imputation is typically performed under a single-best model selected from the candidate…

统计方法学 · 统计学 2018-11-30 Gyuhyeong Goh , Jae Kwang Kim

The effectiveness of univariate forecasting models is often hampered by conditions that cause them stress. A model is considered to be under stress if it shows a negative behaviour, such as higher-than-usual errors or increased uncertainty.…

机器学习 · 计算机科学 2024-07-03 Ricardo Inácio , Vitor Cerqueira , Marília Barandas , Carlos Soares

Time series forecasting plays a crucial role in many real-world applications, and numerous complex forecasting models have been proposed in recent years. Despite their architectural innovations, most state-of-the-art models report only…

机器学习 · 计算机科学 2025-05-28 Reza Nematirad , Anil Pahwa , Balasubramaniam Natarajan

Synthetic augmentation is increasingly used to mitigate data scarcity in financial machine learning, yet its statistical role remains poorly understood. We formalize synthetic augmentation as a modification of the effective training…

人工智能 · 计算机科学 2026-04-17 Mel Sohm , Charles Dezons , Sami Sellami , Oscar Ninou , Axel Pincon

In this paper, we present a new approach to time series forecasting. Time series data are prevalent in many scientific and engineering disciplines. Time series forecasting is a crucial task in modeling time series data, and is an important…

机器学习 · 计算机科学 2020-01-24 Neo Wu , Bradley Green , Xue Ben , Shawn O'Banion

Multivariate time series alignment is critical for ensuring coherent analysis across variables, but missing values and timestamp inconsistencies make this task highly challenging. Existing approaches often rely on prior imputation, which…

数据库 · 计算机科学 2025-12-23 Ding Jia , Jingyu Zhu , Yu Sun , Aoqian Zhang , Shaoxu Song , Haiwei Zhang , Xiaojie Yuan