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Data-driven hourly weather forecasting models often face the challenge of error accumulation in long-term predictions. The problem is exacerbated by non-physical temporal discontinuities present in widely-used training datasets such as…

机器学习 · 计算机科学 2025-10-01 Shuangshuang He , Yuanting Zhang , Hongli Liang , Qingye Meng , Xingyuan Yuan , Shuo Wang

Autoregressive (AR) models remain the standard for natural language generation but still suffer from high latency due to strictly sequential decoding. Recent diffusion-inspired approaches, such as LlaDA and Dream, mitigate this by…

计算与语言 · 计算机科学 2025-10-16 Qinglin Zhu , Yizhen Yao , Runcong Zhao , Yanzheng Xiang , Amrutha Saseendran , Chen Jin , Philip Teare , Bin Liang , Yulan He , Lin Gui

Modern web applications--from real-time content recommendation and dynamic pricing to CDN optimization--increasingly rely on time-series forecasting to deliver personalized experiences to billions of users. Large-scale Transformer-based…

机器学习 · 计算机科学 2025-11-25 Pranav Subbaraman , Fang Sun , Yue Yao , Huacong Tang , Xiao Luo , Yizhou Sun

Retrieval-Augmented Generation (RAG) enhances the factual accuracy of large language models (LLMs) by conditioning outputs on external knowledge sources. However, when retrieval involves private or sensitive data, RAG systems are…

计算与语言 · 计算机科学 2025-08-06 Haoran Wang , Xiongxiao Xu , Baixiang Huang , Kai Shu

Document parsing, as a fundamental yet crucial vision task, is being revolutionized by vision-language models (VLMs). However, the autoregressive (AR) decoding inherent to VLMs creates a significant bottleneck, severely limiting parsing…

计算与语言 · 计算机科学 2026-03-17 Lei Li , Ze Zhao , Meng Li , Zhongwang Lun , Yi Yuan , Xingjing Lu , Zheng Wei , Jiang Bian , Zang Li

Time series forecasting plays a significant role in finance, energy, meteorology, and IoT applications. Recent studies have leveraged the generalization capabilities of large language models (LLMs) to adapt to time series forecasting,…

机器学习 · 计算机科学 2026-05-12 Hao Liu , Xiaoxing Zhang , Chun Yang , Xiaobin Zhu

Diffusion Large Language Models (dLLMs) have emerged as a promising alternative to autoregressive generation by enabling parallel token prediction. However, practical dLLM decoding still suffers from high inference latency, which limits…

计算与语言 · 计算机科学 2026-04-22 Zhenbang Du , Kejing Xia , Xinrui Zhong , Yonggan Fu , Nicolai Oswald , Binfei Ji , Brucek Khailany , Pavlo Molchanov , Yingyan Lin

Recent Large Reasoning Models (LRMs) have achieved remarkable performance in solving complex problems via supervised fine-tuning (SFT) and reinforcement learning (RL). Although existing RL algorithms significantly enhance model accuracy,…

人工智能 · 计算机科学 2025-10-20 Zezhong Tan , Hang Gao , Xinhong Ma , Feng Zhang , Ziqiang Dong

Recent advances in diffusion language models (DLMs) have presented a promising alternative to traditional autoregressive large language models (LLMs). However, DLMs still lag behind LLMs in reasoning performance, especially as the number of…

计算与语言 · 计算机科学 2025-10-27 Chenglong Wang , Yang Gan , Hang Zhou , Chi Hu , Yongyu Mu , Kai Song , Murun Yang , Bei Li , Chunliang Zhang , Tongran Liu , Jingbo Zhu , Zhengtao Yu , Tong Xiao

Large Language Models (LLMs) have recently demonstrated impressive capabilities in natural language processing due to their strong generalization and sequence modeling capabilities. However, their direct application to time series…

计算与语言 · 计算机科学 2025-08-12 Yanru Sun , Emadeldeen Eldele , Zongxia Xie , Yucheng Wang , Wenzhe Niu , Qinghua Hu , Chee Keong Kwoh , Min Wu

Ensuring truthfulness in large language models (LLMs) remains a critical challenge for reliable text generation. While supervised fine-tuning and reinforcement learning with human feedback have shown promise, they require a substantial…

机器学习 · 计算机科学 2026-03-17 Manh Nguyen , Sunil Gupta , Hung Le

One of the most striking findings in modern research on large language models (LLMs) is that scaling up compute during training leads to better results. However, less attention has been given to the benefits of scaling compute during…

Foundation models of time series have not been fully developed due to the limited availability of time series corpora and the underexploration of scalable pre-training. Based on the similar sequential formulation of time series and natural…

机器学习 · 计算机科学 2024-11-01 Yong Liu , Guo Qin , Xiangdong Huang , Jianmin Wang , Mingsheng Long

Iterative refinement has emerged as an effective paradigm for enhancing the capabilities of large language models (LLMs) on complex tasks. However, existing approaches typically implement iterative refinement at the application or prompting…

计算与语言 · 计算机科学 2024-10-15 Yuxi Xie , Anirudh Goyal , Xiaobao Wu , Xunjian Yin , Xiao Xu , Min-Yen Kan , Liangming Pan , William Yang Wang

Large Language Models (LLMs) have demonstrated effectiveness as zero-shot time series (TS) forecasters. The key challenge lies in tokenizing TS data into textual representations that align with LLMs' pre-trained knowledge. While existing…

人工智能 · 计算机科学 2025-12-24 Xingyou Yin , Ceyao Zhang , Min Hu , Kai Chen

Time series forecasting plays a crucial role in decision-making across many real-world applications. Despite substantial progress, most existing methods still treat forecasting as a static, single-pass regression problem. In contrast, human…

人工智能 · 计算机科学 2026-04-13 Xiaohan Zhang , Tian Gao , Mingyue Cheng , Bokai Pan , Ze Guo , Yaguo Liu , Xiaoyu Tao , Qi Liu

Current time-series forecasting models are primarily based on transformer-style neural networks. These models achieve long-term forecasting mainly by scaling up the model size rather than through genuinely autoregressive (AR) rollout. From…

机器学习 · 计算机科学 2026-05-08 Zheng Li , Jerry Cheng , Huanying Gu

Quality analysis of weather forecasts is an essential topic in meteorology. Although traditional score-based evaluation metrics can quantify certain forecast errors, they are still far from meteorological experts in terms of descriptive…

人工智能 · 计算机科学 2025-08-19 Xuming He , Zhiyuan You , Junchao Gong , Couhua Liu , Xiaoyu Yue , Peiqin Zhuang , Wenlong Zhang , Lei Bai

In time series forecasting, decomposition-based algorithms break aggregate data into meaningful components and are therefore appreciated for their particular advantages in interpretability. Recent algorithms often combine machine learning…

机器学习 · 计算机科学 2022-12-14 Yiqi Sun , Zhengxin Shi , Jianshen Zhang , Yongzhi Qi , Hao Hu , Zuojun Max Shen

Time series forecasting faces two important but often overlooked challenges. Firstly, the inherent random noise in the time series labels sets a theoretical lower bound for the forecasting error, which is positively correlated with the…

机器学习 · 计算机科学 2025-09-26 Tianyi Shi , Zhu Meng , Yue Chen , Siyang Zheng , Fei Su , Jin Huang , Changrui Ren , Zhicheng Zhao