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This work proposes an efficient space-time two-grid compact difference (ST-TGCD) scheme for solving the two-dimensional (2D) viscous Burgers' equation subject to initial and periodic boundary conditions. The proposed approach combines a…

数值分析 · 数学 2025-10-20 Xiangyi Peng , Lisen Ding , Wenlin Qiu

We propose Lite-STGNN, a lightweight spatial-temporal graph neural network for long-term multivariate forecasting that integrates decomposition-based temporal modeling with learnable sparse graph structure. The temporal module applies…

机器学习 · 计算机科学 2025-12-22 Henok Tenaw Moges , Deshendran Moodley

Learned video compression (LVC) has witnessed remarkable advancements in recent years. Similar as the traditional video coding, LVC inherits motion estimation/compensation, residual coding and other modules, all of which are implemented…

图像与视频处理 · 电气工程与系统科学 2023-09-22 Yanbo Gao , Wenjia Huang , Shuai Li , Hui Yuan , Mao Ye , Siwei Ma

Spatio-temporal forecasting is crucial in many domains, such as transportation, meteorology, and energy. However, real-world scenarios frequently present challenges such as signal anomalies, noise, and distributional shifts. Existing…

机器学习 · 计算机科学 2025-10-30 Wei Chen , Yuxuan Liang

Knowledge graphs (KGs) are commonly used as side information to enhance collaborative signals and improve recommendation quality. In the context of knowledge-aware recommendation (KGR), graph neural networks (GNNs) have emerged as promising…

信息检索 · 计算机科学 2023-08-16 Yi Liu , Hongrui Xuan , Bohan Li , Meng Wang , Tong Chen , Hongzhi Yin

Session-based recommendation (SBR) systems aim to utilize the user's short-term behavior sequence to predict the next item without the detailed user profile. Most recent works try to model the user preference by treating the sessions as…

信息检索 · 计算机科学 2024-02-20 Zhongwei Wan , Xin Liu , Benyou Wang , Jiezhong Qiu , Boyu Li , Ting Guo , Guangyong Chen , Yang Wang

Dynamic graphs (DGs), which capture time-evolving relationships between graph entities, have widespread real-world applications. To efficiently encode DGs for downstream tasks, most dynamic graph neural networks follow the traditional…

机器学习 · 计算机科学 2025-01-31 Xiang Wu , Xunkai Li , Rong-Hua Li , Kangfei Zhao , Guoren Wang

We propose a Hybrid Spatio-Temporal Quantum Graph Convolutional Network (H-STQGCN) algorithm by combining the strengths of quantum computing and classical deep learning to predict the taxi destination within urban road networks. Our…

量子物理 · 物理学 2025-12-17 Xiuying Zhang , Qinsheng Zhu , Xiaodong Xing

Cross-modal Knowledge Distillation has demonstrated promising performance on paired modalities with strong semantic connections, referred to as Symmetric Cross-modal Knowledge Distillation (SCKD). However, implementing SCKD becomes…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Riling Wei , Kelu Yao , Chuanguang Yang , Jin Wang , Zhuoyan Gao , Chao Li

Multimodal recommendation exploits the rich multimodal information associated with users or items to enhance the representation learning for better performance. In these methods, end-to-end feature extractors (e.g., shallow/deep neural…

信息检索 · 计算机科学 2023-08-08 Fan Liu , Huilin Chen , Zhiyong Cheng , Liqiang Nie , Mohan Kankanhalli

Traffic congestion event prediction is an important yet challenging task in intelligent transportation systems. Many existing works about traffic prediction integrate various temporal encoders and graph convolution networks (GCNs), called…

机器学习 · 计算机科学 2023-11-16 Guangyin Jin , Lingbo Liu , Fuxian Li , Jincai Huang

This paper presents the \textbf{S}emantic-a\textbf{W}ar\textbf{E} spatial-t\textbf{E}mporal \textbf{T}okenizer (SweetTok), a novel video tokenizer to overcome the limitations in current video tokenization methods for compacted yet effective…

计算机视觉与模式识别 · 计算机科学 2025-03-12 Zhentao Tan , Ben Xue , Jian Jia , Junhao Wang , Wencai Ye , Shaoyun Shi , Mingjie Sun , Wenjin Wu , Quan Chen , Peng Jiang

Spatio-Temporal Video Grounding (STVG) aims to retrieve the spatio-temporal tube of a target object or person in a video given a text query. Most existing approaches perform frame-wise spatial localization within a predicted temporal span,…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Heng Zhao , Yew-Soon Ong , Joey Tianyi Zhou

While spatial transcriptomics (ST) has advanced our understanding of gene expression in tissue context, its high experimental cost limits its large-scale application. Predicting ST from pathology images is a promising, cost-effective…

计算机视觉与模式识别 · 计算机科学 2026-03-25 Zhiceng Shi , Changmiao Wang , Jun Wan , Wenwen Min

Depth estimation is a critical task in computer vision, with applications in autonomous navigation, robotics, and augmented reality. Event cameras, which encode temporal changes in light intensity as asynchronous binary spikes, offer unique…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Xin Zhang , Liangxiu Han , Tam Sobeih , Lianghao Han , Darren Dancey

Transformer encoder with connectionist temporal classification (CTC) framework is widely used for automatic speech recognition (ASR). However, knowledge distillation (KD) for ASR displays a problem of disagreement between teacher-student…

音频与语音处理 · 电气工程与系统科学 2024-06-13 Eungbeom Kim , Hantae Kim , Kyogu Lee

Spatio-temporal graph signal analysis has a significant impact on a wide range of applications, including hand/body pose action recognition. To achieve effective analysis, spatio-temporal graph convolutional networks (ST-GCN) leverage the…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Zida Cheng , Siheng Chen , Ya Zhang

2D Gaussian Splatting (2DGS) has recently become a promising paradigm for high-quality video representation. However, existing methods employ content-agnostic or spatio-temporal feature overlapping embeddings to predict canonical Gaussian…

计算机视觉与模式识别 · 计算机科学 2026-04-15 Jierun Lin , Jiacong Chen , Qingyu Mao , Shuai Liu , Xiandong Meng , Fanyang Meng , Yongsheng Liang

Predictive learning uses a known state to generate a future state over a period of time. It is a challenging task to predict spatiotemporal sequence because the spatiotemporal sequence varies both in time and space. The mainstream method is…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Haoyu Pan , Hao Wu , Tan Yang

Spatial-temporal data, fundamental to many intelligent applications, reveals dependencies indicating causal links between present measurements at specific locations and historical data at the same or other locations. Within this context,…

机器学习 · 计算机科学 2025-01-16 Wenying Duan , Shujun Guo , Wei huang , Hong Rao , Xiaoxi He