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Multivariate time series(MTS) is a universal data type related to many practical applications. However, MTS suffers from missing data problems, which leads to degradation or even collapse of the downstream tasks, such as prediction and…

机器学习 · 计算机科学 2022-09-19 Kai Zhang , Qinmin Yang , Chao Li

In time-series analysis, nonlinear temporal misalignment remains a pivotal challenge that forestalls even simple averaging. Since its introduction, the Diffeomorphic Temporal Alignment Net (DTAN), which we first introduced (Weber et al.,…

机器学习 · 计算机科学 2025-02-11 Ron Shapira Weber , Oren Freifeld

Time series forecasting poses significant challenges in non-stationary environments where underlying patterns evolve over time. In this work, we propose a novel framework that enhances deep neural network (DNN) performance by leveraging…

机器学习 · 计算机科学 2025-08-12 Amal Saadallah , Abdulaziz Al-Ademi

Human demonstrations of trajectories are an important source of training data for many machine learning problems. However, the difficulty of collecting human demonstration data for complex tasks makes learning efficient representations of…

机器学习 · 计算机科学 2024-06-10 Travers Rhodes , Daniel D. Lee

Pre-trained Vision Transformers now serve as powerful tools for computer vision. Yet, efficiently adapting them for multiple tasks remains a challenge that arises from the need to modify the rich hidden representations encoded by the…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Krishna Sri Ipsit Mantri , Carola-Bibiane Schönlieb , Bruno Ribeiro , Chaim Baskin , Moshe Eliasof

In neural network surrogate solvers for electromagnetic simulations, accurately modeling resonant phenomena remains a central challenge. High-amplitude resonances generate strongly localized field patterns that deviate significantly from…

光学 · 物理学 2026-05-19 Sunghyun Nam , Chan Y. Park , Min Seok Jang

Many scientific prediction problems have spatiotemporal data- and modeling-related challenges in handling complex variations in space and time using only sparse and unevenly distributed observations. This paper presents a novel deep…

机器学习 · 计算机科学 2021-12-13 Yijun Lin , Yao-Yi Chiang , Meredith Franklin , Sandrah P. Eckel , José Luis Ambite

Forecasting non-stationary time series is a challenging task because their statistical properties often change over time, making it hard for deep models to generalize well. Instance-level normalization techniques can help address shifts in…

机器学习 · 计算机科学 2025-06-09 Junpeng Lin , Tian Lan , Bo Zhang , Ke Lin , Dandan Miao , Huiru He , Jiantao Ye , Chen Zhang , Yan-fu Li

Efficient time series forecasting has become critical for real-world applications, particularly with deep neural networks (DNNs). Efficiency in DNNs can be achieved through sparse connectivity and reducing the model size. However, finding…

机器学习 · 计算机科学 2024-06-13 Zahra Atashgahi , Mykola Pechenizkiy , Raymond Veldhuis , Decebal Constantin Mocanu

Time series forecasting has witnessed significant progress with deep learning. While prevailing approaches enhance forecasting performance by modifying architectures or introducing novel enhancement strategies, they often fail to…

机器学习 · 计算机科学 2026-03-31 Haonan Yang , Jianchao Tang , Zhuo Li

Long-term Time Series Forecasting (LTSF) is crucial across various domains, but complex deep models like Transformers are often prone to overfitting on extended sequences. Linear Fully Connected models have emerged as a powerful…

机器学习 · 计算机科学 2026-02-10 Yuang Zhao , Tianyu Li , Jiadong Chen , Shenrong Ye , Fuxin Jiang , Xiaofeng Gao

With the concept of teaching being introduced to the machine learning community, a teacher model start using dynamic loss functions to teach the training of a student model. The dynamic intends to set adaptive loss functions to different…

人工智能 · 计算机科学 2023-10-31 Zhoyang Hai , Liyuan Pan , Xiabi Liu , Zhengzheng Liu , Mirna Yunita

Accurate time series forecasting models are often compromised by data drift, where underlying data distributions change over time, leading to significant declines in prediction performance. To address this challenge, this study proposes an…

系统与控制 · 电气工程与系统科学 2025-12-30 Nikhil Pawar , Guilherme Vieira Hollweg , Akhtar Hussain , Wencong Su , Van-Hai Bui

Irregularly sampled time series with missing values are often observed in multiple real-world applications such as healthcare, climate and astronomy. They pose a significant challenge to standard deep learning models that operate only on…

Reliable prediction of train delays is essential for enhancing the robustness and efficiency of railway transportation systems. In this work, we reframe delay forecasting as a stochastic simulation task, modeling state-transition dynamics…

机器学习 · 计算机科学 2025-12-24 Clément Elliker , Jesse Read , Sonia Vanier , Albert Bifet

Diffusion Transformers (DiTs) deliver state-of-the-art image quality, yet their training remains notoriously slow. A recent remedy -- representation alignment (REPA) that matches DiT hidden features to those of a non-generative teacher…

计算机视觉与模式识别 · 计算机科学 2025-05-23 Ziqiao Wang , Wangbo Zhao , Yuhao Zhou , Zekai Li , Zhiyuan Liang , Mingjia Shi , Xuanlei Zhao , Pengfei Zhou , Kaipeng Zhang , Zhangyang Wang , Kai Wang , Yang You

Recent advancements in deep learning have been primarily driven by the use of large models trained on increasingly vast datasets. While neural scaling laws have emerged to predict network performance given a specific level of computational…

计算机视觉与模式识别 · 计算机科学 2023-11-13 Elior Benarous , Sotiris Anagnostidis , Luca Biggio , Thomas Hofmann

Time series forecasting has become a critical task due to its high practicality in real-world applications such as traffic, energy consumption, economics and finance, and disease analysis. Recent deep-learning-based approaches have shown…

机器学习 · 计算机科学 2023-05-30 Youngin Cho , Daejin Kim , Dongmin Kim , Mohammad Azam Khan , Jaegul Choo

We propose in this paper a differentiable learning loss between time series, building upon the celebrated dynamic time warping (DTW) discrepancy. Unlike the Euclidean distance, DTW can compare time series of variable size and is robust to…

机器学习 · 统计学 2018-02-21 Marco Cuturi , Mathieu Blondel

Deep learning (DL) approaches are being increasingly used for time-series forecasting, with many efforts devoted to designing complex DL models. Recent studies have shown that the DL success is often attributed to effective data…

人机交互 · 计算机科学 2023-07-28 Jianing Hao , Qing Shi , Yilin Ye , Wei Zeng