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The inherent multimodality and heterogeneous temporal structures of medical data pose significant challenges for modeling. We propose MedM2T, a time-aware multimodal framework designed to address these complexities. MedM2T integrates: (i)…

机器学习 · 计算机科学 2026-03-26 Yu-Chen Kuo , Yi-Ju Tseng

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

Meta-forecasting is a newly emerging field which combines meta-learning and time series forecasting. The goal of meta-forecasting is to train over a collection of source time series and generalize to new time series one-at-a-time. Previous…

机器学习 · 计算机科学 2023-02-07 Mike Van Ness , Huibin Shen , Hao Wang , Xiaoyong Jin , Danielle C. Maddix , Karthick Gopalswamy

Event extraction is challenging due to the complex structure of event records and the semantic gap between text and event. Traditional methods usually extract event records by decomposing the complex structure prediction task into multiple…

计算与语言 · 计算机科学 2021-06-18 Yaojie Lu , Hongyu Lin , Jin Xu , Xianpei Han , Jialong Tang , Annan Li , Le Sun , Meng Liao , Shaoyi Chen

Adapting machine learning models to medical time series across different domains remains a challenge due to complex temporal dependencies and dynamic distribution shifts. Current approaches often focus on isolated feature representations,…

机器学习 · 计算机科学 2025-09-23 YongKyung Oh , Alex Bui

Adapting image-pretrained backbones to video typically relies on time-domain adapters tuned to a single temporal scale. Our experiments show that these modules pick up static image cues and very fast flicker changes, while overlooking…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Thinesh Thiyakesan Ponbagavathi , Constantin Seibold , Alina Roitberg

Classical asset price forecasting methods primarily rely on numerical data, such as price time series, trading volumes, limit order book data, and technical analysis indicators. However, the news flow plays a significant role in price…

统计金融 · 定量金融 2025-03-20 Kasymkhan Khubiev , Mikhail Semenov

We develop a framework to track the structure of temporal networks with a signal processing approach. The method is based on the duality between networks and signals using a multidimensional scaling technique. This enables a study of the…

社会与信息网络 · 计算机科学 2015-05-13 Ronan Hamon , Pierre Borgnat , Patrick Flandrin , Céline Robardet

Cross-domain generalization is very important in Time Series Forecasting because similar historical information may lead to distinct future trends due to the domain-specific characteristics. Recent works focus on building unimodal time…

机器学习 · 计算机科学 2026-03-10 Xingjian Wu , Jianxin Jin , Wanghui Qiu , Peng Chen , Yang Shu , Bin Yang , Chenjuan Guo

Time series foundation models (TSFMs) offer strong zero-shot forecasting via large-scale pre-training, yet fine-tuning remains critical for boosting performance in domains with limited public data. With the growing number of TSFMs,…

机器学习 · 计算机科学 2025-09-30 Qingren Yao , Ming Jin , Chengqi Zhang , Chao-Han Huck Yang , Jun Qi , Shirui Pan

Text-style transfer aims to convert text given in one domain into another by paraphrasing the sentence or substituting the keywords without altering the content. By necessity, state-of-the-art methods have evolved to accommodate nonparallel…

计算与语言 · 计算机科学 2021-06-22 Xing Han , Jessica Lundin

Multimedia information have strong temporal correlations that shape the way modalities co-occur over time. In this paper we study the dynamic nature of multimedia and social-media information, where the temporal dimension emerges as a…

多媒体 · 计算机科学 2018-10-11 David Semedo , João Magalhães

Making the most of multispectral image time-series is a promising but still relatively under-explored research direction because of the complexity of jointly analyzing spatial, spectral and temporal information. Capturing and characterizing…

图像与视频处理 · 电气工程与系统科学 2021-03-22 Joaquim Estopinan , Guillaume Tochon , Lucas Drumetz

Time Series Forecasting plays a crucial role in various fields such as industrial equipment maintenance, meteorology, energy consumption, traffic flow and financial investment. However, despite their considerable advantages over traditional…

机器学习 · 计算机科学 2024-07-02 Ruiqi Li , Maowei Jiang , Kai Wang , Kaiduo Feng , Quangao Liu , Yue Sun , Xiufang Zhou

Nowadays, many recommender systems encompass various domains to cater to users' diverse needs, leading to user behaviors transitioning across different domains. In fact, user behaviors across different domains reveal changes in preference…

信息检索 · 计算机科学 2025-05-08 Changshuo Zhang , Teng Shi , Xiao Zhang , Qi Liu , Ruobing Xie , Jun Xu , Ji-Rong Wen

Time series forecasting is essential in a wide range of real world applications. Recently, frequency-domain methods have attracted increasing interest for their ability to capture global dependencies. However, when applied to non-stationary…

机器学习 · 统计学 2026-02-09 Zhongde An , Jinhong You , Jiyanglin Li , Yiming Tang , Wen Li , Heming Du , Shouguo Du

Temporal data distribution shift is prevalent in the financial text. How can a financial sentiment analysis system be trained in a volatile market environment that can accurately infer sentiment and be robust to temporal data distribution…

计算与语言 · 计算机科学 2023-10-20 Yue Guo , Chenxi Hu , Yi Yang

This paper introduces a novel spatiotemporal feature representation model designed to address the limitations of traditional methods in multidimensional time series (MTS) analysis. The proposed approach converts MTS into one-dimensional…

机器学习 · 计算机科学 2024-10-10 Xu Yan , Yaoting Jiang , Wenyi Liu , Didi Yi , Jianjun Wei

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

Accurate traffic state prediction is the foundation of transportation control and guidance. It is very challenging due to the complex spatiotemporal dependencies in traffic data. Existing works cannot perform well for multi-step traffic…

机器学习 · 计算机科学 2021-08-17 Jiexia Ye , Furong Zheng , Juanjuan Zhao , Kejiang Ye , Chengzhong Xu