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Trajectory prediction is a fundamental task in Autonomous Vehicles (AVs) and Intelligent Transportation Systems (ITS), supporting efficient motion planning and real-time traffic safety management. Diffusion models have recently demonstrated…

人工智能 · 计算机科学 2025-10-02 Bingzhang Wang , Kehua Chen , Yinhai Wang

Learning robust and scalable visual representations from massive multi-view video data remains a challenge in computer vision and autonomous driving. Existing pre-training methods either rely on expensive supervised learning with 3D…

计算机视觉与模式识别 · 计算机科学 2024-03-14 Jialv Zou , Bencheng Liao , Qian Zhang , Wenyu Liu , Xinggang Wang

Multivariate Time-Series (MTS) clustering discovers intrinsic grouping patterns of temporal data samples. Although time-series provide rich discriminative information, they also contain substantial redundancy, such as steady-state machine…

机器学习 · 计算机科学 2025-12-09 Zexi Tan , Xiaopeng Luo , Yunlin Liu , Yiqun Zhang

Estimating and disentangling epistemic uncertainty, uncertainty that is reducible with more training data, and aleatoric uncertainty, uncertainty that is inherent to the task at hand, is critically important when applying machine learning…

机器学习 · 计算机科学 2024-11-08 Matthew A. Chan , Maria J. Molina , Christopher A. Metzler

Multimodal dataset distillation aims to construct compact synthetic datasets that enable efficient compression and knowledge transfer from large-scale image-text data. However, existing approaches often fail to capture the complex,…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Shengbin Guo , Hang Zhao , Senqiao Yang , Chenyang Jiang , Yuhang Cheng , Xiangru Peng , Rui Shao , Zhuotao Tian

Pedestrian trajectory forecasting is crucial in various applications such as autonomous driving and mobile robot navigation. In such applications, camera-based perception enables the extraction of additional modalities (human pose, text) to…

计算机视觉与模式识别 · 计算机科学 2025-03-31 Jaewoo Jeong , Seohee Lee , Daehee Park , Giwon Lee , Kuk-Jin Yoon

In the classical setting, the training of a Hidden Markov Model (HMM) typically relies on a single, sufficiently long observation sequence that can be regarded as representative of the underlying stochastic process. In this context, the…

信号处理 · 电气工程与系统科学 2025-10-31 Margarita Cabrera-Bean , Josep Vidal , Sergio Fernandez-Bertolin , Albert Roso-Llorach , Concepcion Violan

The recent Segment Anything Model (SAM) represents a big leap in scaling up segmentation models, allowing for powerful zero-shot capabilities and flexible prompting. Despite being trained with 1.1 billion masks, SAM's mask prediction…

计算机视觉与模式识别 · 计算机科学 2023-10-24 Lei Ke , Mingqiao Ye , Martin Danelljan , Yifan Liu , Yu-Wing Tai , Chi-Keung Tang , Fisher Yu

Large pre-trained models have been vital in recent advancements in domains like language and vision, making model training for individual downstream tasks more efficient and provide superior performance. However, tackling time-series…

机器学习 · 计算机科学 2024-12-06 Harshavardhan Kamarthi , B. Aditya Prakash

Deep pre-training and fine-tuning models (like BERT, OpenAI GPT) have demonstrated excellent results in question answering areas. However, due to the sheer amount of model parameters, the inference speed of these models is very slow. How to…

计算与语言 · 计算机科学 2019-04-23 Ze Yang , Linjun Shou , Ming Gong , Wutao Lin , Daxin Jiang

In this work, we survey recent studies on masked image modeling (MIM), an approach that emerged as a powerful self-supervised learning technique in computer vision. The MIM task involves masking some information, e.g. pixels, patches, or…

计算机视觉与模式识别 · 计算机科学 2025-07-11 Vlad Hondru , Florinel Alin Croitoru , Shervin Minaee , Radu Tudor Ionescu , Nicu Sebe

Hidden Markov Model (HMM) is often regarded as the dynamical model of choice in many fields and applications. It is also at the heart of most state-of-the-art speech recognition systems since the 70's. However, from Gaussian mixture models…

计算与语言 · 计算机科学 2016-07-04 Sébastien Gagnon , Jean Rouat

In order to solve the problems such as difficult to extract effective features and low accuracy of sales volume prediction caused by complex relationships such as market sales volume in time series prediction, we proposed a time series…

信号处理 · 电气工程与系统科学 2024-06-06 Jianyu Liu , Wei Chen , Yong Zhang , Zhenfeng Chen , Bin Wan , Jinwei Hu

Time series analysis is crucial in fields like finance, transportation, and industry. However, traditional models often focus solely on temporal features, limiting their ability to capture underlying information. This paper proposes a novel…

机器学习 · 计算机科学 2025-03-12 Shule Hao , Junpeng Bao , Chuncheng Lu

Periodic time series (PTS) forecasting plays a crucial role in a variety of industries to foster critical tasks, such as early warning, pre-planning, resource scheduling, etc. However, the complicated dependencies of the PTS signal on its…

机器学习 · 计算机科学 2022-03-16 Wei Fan , Shun Zheng , Xiaohan Yi , Wei Cao , Yanjie Fu , Jiang Bian , Tie-Yan Liu

Hidden Markov Models (HMMs) are one of the most fundamental and widely used statistical tools for modeling discrete time series. In general, learning HMMs from data is computationally hard (under cryptographic assumptions), and…

机器学习 · 计算机科学 2012-07-10 Daniel Hsu , Sham M. Kakade , Tong Zhang

Traffic state data, such as speed, volume and travel time collected from ubiquitous traffic monitoring sensors require advanced network level analytics for forecasting and identifying significant traffic patterns. This paper leverages…

机器学习 · 计算机科学 2025-02-18 Tianya Zhang

Multivariate time series forecasting with hierarchical structure is widely used in real-world applications, e.g., sales predictions for the geographical hierarchy formed by cities, states, and countries. The hierarchical time series (HTS)…

机器学习 · 计算机科学 2023-10-10 Fan Zhou , Chen Pan , Lintao Ma , Yu Liu , Shiyu Wang , James Zhang , Xinxin Zhu , Xuanwei Hu , Yunhua Hu , Yangfei Zheng , Lei Lei , Yun Hu

Extreme events frequently occur in real-world time series and often carry significant practical implications. In domains such as climate and healthcare, these events, such as floods, heatwaves, or acute medical episodes, can lead to serious…

机器学习 · 计算机科学 2025-10-24 Quan Li , Wenchao Yu , Suhang Wang , Minhua Lin , Lingwei Chen , Wei Cheng , Haifeng Chen

This paper presents enhancements to the SAM2 framework for video object tracking task, addressing challenges such as occlusions, background clutter, and target reappearance. We introduce a hierarchical motion estimation strategy, combining…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Ruixiang Chen , Guolei Sun , Yawei Li , Jie Qin , Luca Benini
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