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Recent time series modeling faces a sharp divide between numerical generation and semantic understanding, with research showing that generation models often rely on superficial pattern matching, while understanding-oriented models struggle…

机器学习 · 计算机科学 2026-02-20 Tong Guan , Sheng Pan , Johan Barthelemy , Zhao Li , Yujun Cai , Cesare Alippi , Ming Jin , Shirui Pan

Time series foundation models excel at diverse time series forecasting tasks, but their capacity for continuous improvement through incremental learning remains unexplored. We present the first comprehensive study investigating these…

机器学习 · 计算机科学 2025-04-22 Jia Liu , Cheng Jinguo , Xia Fang , Zhenyuan Ma , Yuankai Wu

We propose ContextLM, a framework that implicitly learns multi-token prediction by augmenting standard pretraining with an intrinsic next-context prediction objective. ContextLM builds a language model on top of context embeddings that span…

计算与语言 · 计算机科学 2026-02-12 Beiya Dai , Yuliang Liu , Daozheng Xue , Yunchong Song , Qipeng Guo , Kai Chen , Xinbing Wang , Bowen Zhou , Zhouhan Lin

In-context Learning enables training-free adaptation via demonstrations but remains highly sensitive to example selection and formatting. In unified multimodal models spanning understanding and generation, this sensitivity is exacerbated by…

计算机视觉与模式识别 · 计算机科学 2026-03-27 Yicheng Xu , Jiangning Zhang , Zhucun Xue , Teng Hu , Ran Yi , Xiaobin Hu , Yong Liu , Dacheng Tao

Recent progress in large models has led to significant advances in unified multimodal generation and understanding. However, the development of models that unify motion-language generation and understanding remains largely underexplored.…

计算机视觉与模式识别 · 计算机科学 2026-04-20 Zekun Li , Sizhe An , Chengcheng Tang , Chuan Guo , Ivan Shugurov , Linguang Zhang , Amy Zhao , Srinath Sridhar , Lingling Tao , Abhay Mittal

Transformer-based language models excel at in-context learning (ICL), where they can adapt to new tasks based on contextual examples, without parameter updates. In a specific form of ICL, which we refer to as \textit{contextual recall},…

机器学习 · 计算机科学 2026-03-24 Bhavya Vasudeva , Puneesh Deora , Alberto Bietti , Vatsal Sharan , Christos Thrampoulidis

Foundational Models are an emerging widely used technique of GenAI. These models are distinguished by their scalability and the ease with which they can be adapted through the exploitation of Transfer Learning. The availability of high…

机器学习 · 计算机科学 2025-05-13 M. Germán-Morales , A. J. Rivera-Rivas , M. J. del Jesus Díaz , C. J. Carmona

Astronomical surveys produce time-series data by observing stellar objects across multiple wavelength bands. Foundational transformer-based models, such as Astromer, encode each time-series as a sequence of embeddings of uniform dimensions.…

天体物理仪器与方法 · 物理学 2025-06-16 Gabriel Chiong , Ignacio Becker , Pavlos Protopapas

Transformer-based time series forecasting has recently gained strong interest due to the ability of transformers to model sequential data. Most of the state-of-the-art architectures exploit either temporal or inter-channel dependencies,…

机器学习 · 计算机科学 2025-03-25 Davide Villaboni , Alberto Castellini , Ivan Luciano Danesi , Alessandro Farinelli

Traditional time series analysis has long relied on pattern recognition, trained on static and well-established benchmarks. However, in real-world settings -- where policies shift, human behavior adapts, and unexpected events unfold --…

人工智能 · 计算机科学 2025-10-16 Xinlei Wang , Mingtian Tan , Jing Qiu , Junhua Zhao , Jinjin Gu

With the rising global burden of chronic diseases and the multimodal and heterogeneous clinical data (medical imaging, free-text recordings, wearable sensor streams, etc.), there is an urgent need for a unified multimodal AI framework that…

人工智能 · 计算机科学 2025-09-24 Dingxin Lu , Shurui Wu , Xinyi Huang

Effective analysis of time series data presents significant challenges due to the complex temporal dependencies and cross-channel interactions in multivariate data. Inspired by the way human analysts visually inspect time series to uncover…

机器学习 · 计算机科学 2025-10-10 Qinghua Liu , Sam Heshmati , Zheda Mai , Zubin Abraham , John Paparrizos , Liu Ren

Time-series data are critical in diverse applications, such as industrial monitoring, medical diagnostics, and climate research. However, effectively integrating these high-dimensional temporal signals with natural language for dynamic,…

计算与语言 · 计算机科学 2025-06-26 Yilin Wang , Peixuan Lei , Jie Song , Yuzhe Hao , Tao Chen , Yuxuan Zhang , Lei Jia , Yuanxiang Li , Zhongyu Wei

A foundation model like GPT elicits many emergent abilities, owing to the pre-training with broad inclusion of data and the use of the powerful Transformer architecture. While foundation models in natural languages are prevalent, can we…

机器学习 · 计算机科学 2025-06-18 Ziyuan Tang , Jie Chen

Reconstructing precise clinical timelines is essential for modeling patient trajectories and forecasting risk in complex, heterogeneous conditions like sepsis. While unstructured clinical narratives offer semantically rich and contextually…

计算与语言 · 计算机科学 2026-05-15 Sayantan Kumar , Shahriar Noroozizadeh , Juyong Kim , Jeremy C. Weiss

Multimodal models have demonstrated powerful capabilities in complex tasks requiring multimodal alignment, including zero-shot classification and cross-modal retrieval. However, existing models typically rely on millions of paired…

计算机视觉与模式识别 · 计算机科学 2025-10-23 Fabian Gröger , Shuo Wen , Huyen Le , Maria Brbić

Time series data is fundamental to decision-making across many domains including healthcare, finance, power systems, and logistics. However, analyzing this data correctly often requires incorporating unstructured contextual information,…

机器学习 · 计算机科学 2026-03-17 Felix Parker , Nimeesha Chan , Chi Zhang , Kimia Ghobadi

Advancements in self-supervised pre-training (SSL) have significantly advanced the field of learning transferable time series representations, which can be very useful in enhancing the downstream task. Despite being effective, most existing…

机器学习 · 计算机科学 2024-11-06 Mingyue Cheng , Xiaoyu Tao , Qi Liu , Hao Zhang , Yiheng Chen , Defu Lian

Guiding users through complex procedural plans is an inherently multimodal task in which having visually illustrated plan steps is crucial to deliver an effective plan guidance. However, existing works on plan-following language models…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Diogo Glória-Silva , David Semedo , João Magalhães

Time series modeling holds significant importance in many real-world applications and has been extensively studied. While pre-trained foundation models have made impressive strides in the fields of natural language processing (NLP) and…

计算与语言 · 计算机科学 2025-02-20 Juyuan Zhang , Wei Zhu , Jiechao Gao