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Performance forecasting is an age-old problem in economics and finance. Recently, developments in machine learning and neural networks have given rise to non-linear time series models that provide modern and promising alternatives to…

统计金融 · 定量金融 2022-01-21 Carmina Fjellström

Irregular sampling occurs in many time series modeling applications where it presents a significant challenge to standard deep learning models. This work is motivated by the analysis of physiological time series data in electronic health…

机器学习 · 计算机科学 2021-06-08 Satya Narayan Shukla , Benjamin M. Marlin

Time series forecasting is a long-standing and highly challenging research topic. Recently, driven by the rise of large language models (LLMs), research has increasingly shifted from purely time series methods toward harnessing textual…

人工智能 · 计算机科学 2025-09-03 Shiqiao Zhou , Holger Schöner , Huanbo Lyu , Edouard Fouché , Shuo Wang

Modeling Irregularly-sampled and Multivariate Time Series (IMTS) is crucial across a variety of applications where different sets of variates may be missing at different time-steps due to sensor malfunctions or high data acquisition costs.…

Representation learning plays a critical role in the analysis of time series data and has high practical value across a wide range of applications. including trend analysis, time series data retrieval and forecasting. In practice, data…

机器学习 · 计算机科学 2023-12-13 Chengyang Ye , Qiang Ma

Siamese network has been a de facto benchmark framework for 3D LiDAR object tracking with a shared-parametric encoder extracting features from template and search region, respectively. This paradigm relies heavily on an additional matching…

计算机视觉与模式识别 · 计算机科学 2023-08-25 Teli Ma , Mengmeng Wang , Jimin Xiao , Huifeng Wu , Yong Liu

Multi-variate time series (MTS) data is a ubiquitous class of data abstraction in the real world. Any instance of MTS is generated from a hybrid dynamical system and their specific dynamics are usually unknown. The hybrid nature of such a…

机器学习 · 计算机科学 2021-09-07 Jinliang Deng , Xiusi Chen , Renhe Jiang , Xuan Song , Ivor W. Tsang

Accurate traffic prediction is essential for optimizing transportation systems, enhancing resource allocation, and improving overall urban administration. Spatio-temporal graph neural networks (GNNs) have achieved state-of-the-art…

机器学习 · 计算机科学 2026-05-12 Qianru Zhang , Xinyi Gao , Alexander Zhou , Reynold Cheng , Siu-Ming Yiu , Hongzhi Yin

We present Sequential Policy Optimization for Simultaneous Machine Translation (SeqPO-SiMT), a new policy optimization framework that defines the simultaneous machine translation (SiMT) task as a sequential decision making problem,…

计算与语言 · 计算机科学 2025-05-28 Ting Xu , Zhichao Huang , Jiankai Sun , Shanbo Cheng , Wai Lam

Irregular Multivariate Time Series (IMTS) are characterized by uneven intervals between consecutive timestamps, which carry sampling pattern information valuable and informative for learning temporal and variable dependencies. In addition,…

机器学习 · 计算机科学 2026-02-26 Boyuan Li , Zhen Liu , Yicheng Luo , Qianli Ma

Multivariate Time Series (MTS) forecasting plays a vital role in a wide range of applications. Recently, Spatial-Temporal Graph Neural Networks (STGNNs) have become increasingly popular MTS forecasting methods. STGNNs jointly model the…

机器学习 · 计算机科学 2022-08-17 Zezhi Shao , Zhao Zhang , Fei Wang , Yongjun Xu

We present TemporalStereo, a coarse-to-fine stereo matching network that is highly efficient, and able to effectively exploit the past geometry and context information to boost matching accuracy. Our network leverages sparse cost volume and…

计算机视觉与模式识别 · 计算机科学 2023-08-04 Youmin Zhang , Matteo Poggi , Stefano Mattoccia

Simultaneous speech translation (SimulST) translates partial speech inputs incrementally. Although the monotonic correspondence between input and output is preferable for smaller latency, it is not the case for distant language pairs such…

计算与语言 · 计算机科学 2023-06-16 Yuka Ko , Ryo Fukuda , Yuta Nishikawa , Yasumasa Kano , Katsuhito Sudoh , Satoshi Nakamura

The goal of precipitation nowcasting is to predict the future rainfall intensity in a local region over a relatively short period of time. Very few previous studies have examined this crucial and challenging weather forecasting problem from…

计算机视觉与模式识别 · 计算机科学 2015-09-22 Xingjian Shi , Zhourong Chen , Hao Wang , Dit-Yan Yeung , Wai-kin Wong , Wang-chun Woo

Long-term satellite image time series (SITS) analysis in heterogeneous landscapes faces significant challenges, particularly in Mediterranean regions where complex spatial patterns, seasonal variations, and multi-decade environmental…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Ido Faran , Nathan S. Netanyahu , Maxim Shoshany

In order to enhance the performance of Transformer models for long-term multivariate forecasting while minimizing computational demands, this paper introduces the Joint Time-Frequency Domain Transformer (JTFT). JTFT combines time and…

机器学习 · 计算机科学 2023-10-31 Yushu Chen , Shengzhuo Liu , Jinzhe Yang , Hao Jing , Wenlai Zhao , Guangwen Yang

Attention-based sequence-to-sequence modeling provides a powerful and elegant solution for applications that need to map one sequence to a different sequence. Its success heavily relies on the availability of large amounts of training data.…

计算与语言 · 计算机科学 2021-02-12 Yun Tang , Juan Pino , Changhan Wang , Xutai Ma , Dmitriy Genzel

Sufficiently modeling the correlations among variables (aka channels) is crucial for achieving accurate multivariate time series forecasting (MTSF). In this paper, we propose a novel technique called Temporal Query (TQ) to more effectively…

机器学习 · 计算机科学 2025-09-12 Shengsheng Lin , Haojun Chen , Haijie Wu , Chunyun Qiu , Weiwei Lin

In this paper, we introduce a novel theoretical framework for multi-task regression, applying random matrix theory to provide precise performance estimations, under high-dimensional, non-Gaussian data distributions. We formulate a…

Diffusion models have recently emerged as powerful frameworks for generating high-quality images. While recent studies have explored their application to time series forecasting, these approaches face significant challenges in cross-modal…

计算机视觉与模式识别 · 计算机科学 2025-02-24 Weilin Ruan , Siru Zhong , Haomin Wen , Yuxuan Liang