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相关论文: Dated Data: Tracing Knowledge Cutoffs in Large Lan…

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Large Language Models (LLMs) are widely used for temporal prediction, but their reliance on pretraining data raises contamination concerns, as accurate predictions on pre-cutoff test data may reflect memorization rather than reasoning,…

计算与语言 · 计算机科学 2025-10-16 Xin Gao , Ruiyi Zhang , Daniel Du , Saurabh Mahindre , Sai Ashish Somayajula , Pengtao Xie

Large Language Models (LLMs) are frequently utilized as sources of knowledge for question-answering. While it is known that LLMs may lack access to real-time data or newer data produced after the model's cutoff date, it is less clear how…

计算与语言 · 计算机科学 2025-07-30 Agam Shah , Liqin Ye , Sebastian Jaskowski , Wei Xu , Sudheer Chava

Large Language Models (LLMs) are pretrained on textual data up to a specific temporal cutoff. This creates a strict knowledge boundary beyond which models cannot provide accurate information without querying external sources. More subtly,…

Large language models (LLMs) face significant challenges in ex-ante reasoning, where analysis, inference, or predictions must be made without access to information from future events. Even with explicit prompts enforcing temporal cutoffs,…

机器学习 · 计算机科学 2025-05-27 Yachuan Liu , Xiaochun Wei , Lin Shi , Xinnuo Li , Bohan Zhang , Paramveer Dhillon , Qiaozhu Mei

Large language models (LLMs) have recently gained significant attention due to their unparalleled ability to perform various natural language processing tasks. These models, benefiting from their advanced natural language understanding…

计算与语言 · 计算机科学 2024-01-23 Jonas Wallat , Adam Jatowt , Avishek Anand

Large language models (LLMs) are typically trained on shuffled corpora, yielding models whose knowledge is frozen at train time and whose temporal grounding remains poorly understood. In this work, we study the impact of pre-training…

计算与语言 · 计算机科学 2026-05-26 Hippolyte Pilchen , Romain Fabre , Franck Signe Talla , Patrick Perez , Edouard Grave

Large language models (LLMs) are trained on web-scale corpora that exhibit steep power-law distributions, in which the distribution of knowledge is highly long-tailed, with most appearing infrequently. While scaling has improved…

计算与语言 · 计算机科学 2026-02-19 Sanket Badhe , Deep Shah , Nehal Kathrotia

Large language models (LLMs) often fail to reason under temporal cutoffs: when prompted to answer from the standpoint of an earlier time, they exploit knowledge that became available only later. We study this failure through the lens of…

人工智能 · 计算机科学 2026-05-15 Chenlu Ding , Jiancan Wu , Yanchen Luo , Zheyuan Liu , Yancheng Yuan , Xiang Wang

LLM alignment ensures that large language models behave safely and effectively by aligning their outputs with human values, goals, and intentions. Aligning LLMs employ huge amounts of data, computation, and time. Moreover, curating data…

机器学习 · 计算机科学 2025-02-19 Amrit Khera , Rajat Ghosh , Debojyoti Dutta

The existing methods for evaluating the medical knowledge of Large Language Models (LLMs) are largely based on atemporal examination-style benchmarks, while in reality, medical knowledge is inherently dynamic and continuously evolves as new…

机器学习 · 计算机科学 2026-05-14 Zihan Guan , Qiao Jin , Guangzhi Xiong , Fangyuan Chen , Mengxuan Hu , Qingyu Chen , Yifan Peng , Zhiyong Lu , Anil Vullikanti

Large Language Models (LLMs) have demonstrated impressive capabilities in reasoning and prediction across different domains. Yet, their ability to infer temporal regularities from structured behavioral data remains underexplored. This paper…

Backtesting large language models on historical events requires reasoning exclusively from information available before a specified cutoff date. Yet models routinely leak post-cutoff knowledge from pre-training into their reasoning,…

机器学习 · 计算机科学 2026-05-20 Zeyu Zhang , Bradly C. Stadie

Citations in scholarly work serve the essential purpose of acknowledging and crediting the original sources of knowledge that have been incorporated or referenced. Depending on their surrounding textual context, these citations are used for…

数字图书馆 · 计算机科学 2023-09-19 Yang Zhang , Yufei Wang , Kai Wang , Quan Z. Sheng , Lina Yao , Adnan Mahmood , Wei Emma Zhang , Rongying Zhao

Large Language Models (LLMs) trained on historical web data inevitably become outdated. We investigate evaluation strategies and update methods for LLMs as new data becomes available. We introduce a web-scale dataset for time-continual…

Declarative knowledge and procedural knowledge are two key parts in meta-cognitive theory, and these two hold significant importance in pre-training and inference of LLMs. However, a comprehensive analysis comparing these two types of…

计算与语言 · 计算机科学 2024-03-18 Zhuoqun Li , Hongyu Lin , Yaojie Lu , Hao Xiang , Xianpei Han , Le Sun

Factual knowledge extraction aims to explicitly extract knowledge parameterized in pre-trained language models for application in downstream tasks. While prior work has been investigating the impact of supervised fine-tuning data on the…

计算与语言 · 计算机科学 2025-05-30 Xuan Gong , Hanbo Huang , Shiyu Liang

Limited by the scale and diversity of time series data, the neural networks trained on time series data often overfit and show unsatisfacotry performances. In comparison, large language models (LLMs) recently exhibit impressive…

机器学习 · 计算机科学 2024-06-14 Ruibing Jin , Qing Xu , Min Wu , Yuecong Xu , Dan Li , Xiaoli Li , Zhenghua Chen

Are Large language models (LLMs) temporally grounded? Since LLMs cannot perceive and interact with the environment, it is impossible to answer this question directly. Instead, we provide LLMs with textual narratives and probe them with…

计算与语言 · 计算机科学 2023-11-17 Yifu Qiu , Zheng Zhao , Yftah Ziser , Anna Korhonen , Edoardo M. Ponti , Shay B. Cohen

With the development of large language models (LLMs) like the GPT series, their widespread use across various application scenarios presents a myriad of challenges. This review initially explores the issue of domain specificity, where LLMs…

计算与语言 · 计算机科学 2023-10-23 Xiaoliang Chen , Liangbin Li , Le Chang , Yunhe Huang , Yuxuan Zhao , Yuxiao Zhang , Dinuo Li

Post-cutoff performance decay of LLMs has been widely interpreted as a temporal signal for benchmark contamination, where public information released before the training cutoff may have been included into training corpora and inflated model…

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