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Large language models (LLMs) have demonstrated remarkable capabilities in handling complex dialogue tasks without requiring use case-specific fine-tuning. However, analyzing live dialogues in real-time necessitates low-latency processing…

计算与语言 · 计算机科学 2025-03-10 Xuanqing Liu , Luyang Kong , Wei Niu , Afshin Khashei , Belinda Zeng , Steve Johnson , Jon Jay , Davor Golac , Matt Pope

Large Language Models (LLMs) have demonstrated strong reasoning and memorization capabilities via pretraining on massive textual corpora. However, this poses risk of privacy and copyright violations, highlighting the need for efficient…

机器学习 · 计算机科学 2025-04-28 Sungmin Cha , Sungjun Cho , Dasol Hwang , Moontae Lee

Large Language Models (LLMs) are increasingly employed in real-world applications, driving the need to evaluate the trustworthiness of their generated text. To this end, reliable uncertainty estimation is essential. Leading uncertainty…

机器学习 · 计算机科学 2026-04-21 Lukas Aichberger , Kajetan Schweighofer , Sepp Hochreiter

Recent advancements in instruction tuning for large language models (LLMs) suggest that a small, high-quality dataset can significantly equip LLMs with instruction-following capabilities, outperforming large datasets often burdened by…

机器学习 · 计算机科学 2025-05-20 Jia Zhang , Chen-Xi Zhang , Yao Liu , Yi-Xuan Jin , Xiao-Wen Yang , Bo Zheng , Yi Liu , Lan-Zhe Guo

Evaluations of large language models (LLMs) suffer from instability, where small changes of random factors such as few-shot examples can lead to drastic fluctuations of scores and even model rankings. Moreover, different LLMs can have…

机器学习 · 计算机科学 2025-09-17 Yiyang Li , Yonghuang Wu , Ying Luo , Liangtai Sun , Zishu Qin , Lin Qiu , Xuezhi Cao , Xunliang Cai

Adapting large language models (LLMs) to specific domains often faces a critical bottleneck: the scarcity of high-quality, human-curated data. While large volumes of unchecked data are readily available, indiscriminately using them for…

计算与语言 · 计算机科学 2025-09-09 Jian Wu , Hang Yu , Bingchang Liu , Wenjie Yang , Peng Di , Jianguo Li , Yue Zhang

Large language models (LLMs) have revolutionized the field of natural language processing with their impressive reasoning and question-answering capabilities. However, these models are sometimes prone to generating credible-sounding but…

计算与语言 · 计算机科学 2026-04-21 Ranganath Krishnan , Piyush Khanna , Omesh Tickoo

Instruction tuning plays a critical role in aligning large language models (LLMs) with human preference. Despite the vast amount of open instruction datasets, naively training a LLM on all existing instructions may not be optimal and…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Yulei Qin , Yuncheng Yang , Pengcheng Guo , Gang Li , Hang Shao , Yuchen Shi , Zihan Xu , Yun Gu , Ke Li , Xing Sun

Clinical decision requires reasoning in the presence of imperfect data. DTs are a well-known decision support tool, owing to their interpretability, fundamental in safety-critical contexts such as medical diagnosis. However, learning DTs…

In recent years, instruction tuning has gained increasing attention and emerged as a crucial technique to enhance the capabilities of Large Language Models (LLMs). To construct high-quality instruction datasets, many instruction processing…

计算与语言 · 计算机科学 2024-06-25 Yixin Ou , Ningyu Zhang , Honghao Gui , Ziwen Xu , Shuofei Qiao , Yida Xue , Runnan Fang , Kangwei Liu , Lei Li , Zhen Bi , Guozhou Zheng , Huajun Chen

Large Language Models (LLMs) excel in general tasks, but adapting them to specialized domains relies on high-quality supervised fine-tuning (SFT) data. Although existing methods can identify subsets of high-quality data and reduce training…

计算与语言 · 计算机科学 2025-10-17 Zhaoyang Shang , Sibo Wei , Jianbin Guo , Rui Zhou , Lifeng Dong , Yin Luo

Large Language Models (LLMs) have demonstrated exceptional capabilities, yet selecting the most reliable response from multiple LLMs remains a challenge, particularly in resource-constrained settings. Existing approaches often depend on…

Data selection for finetuning Large Language Models (LLMs) can be framed as a budget-constrained optimization problem: maximizing a model's downstream performance under a strict training data budget. Solving this problem is generally…

机器学习 · 计算机科学 2025-10-01 Animesh Jha , Harshit Gupta , Ananjan Nandi

This paper presents a new approach to identifying and eliminating mislabeled training instances for supervised learning. The goal of this approach is to improve classification accuracies produced by learning algorithms by improving the…

人工智能 · 计算机科学 2011-06-02 C. E. Brodley , M. A. Friedl

Large language models provide rich semantic priors and strong reasoning capabilities, making them promising auxiliary signals for recommendation. However, prevailing approaches either deploy LLMs as standalone recommender or apply global…

信息检索 · 计算机科学 2025-12-29 Shanglin Yang , Zhan Shi

Supervised fine-tuning (SFT) plays a crucial role in adapting large language models (LLMs) to specific domains or tasks. However, as demonstrated by empirical experiments, the collected data inevitably contains noise in practical…

计算与语言 · 计算机科学 2024-12-20 Junyu Luo , Xiao Luo , Kaize Ding , Jingyang Yuan , Zhiping Xiao , Ming Zhang

We propose a sequential learning policy for noisy discrete global optimization and ranking and selection (R\&S) problems with high dimensional sparse belief functions, where there are hundreds or even thousands of features, but only a small…

机器学习 · 统计学 2015-03-20 Yan Li , Han Liu , Warren Powell

Label noise may affect the generalization of classifiers, and the effective learning of main patterns from samples with noisy labels is an important challenge. Recent studies have shown that deep neural networks tend to prioritize the…

机器学习 · 计算机科学 2019-12-06 Yi Sun , Yan Tian , Yiping Xu , Jianxiang Li

Large Language Models (LLMs) trained on extensive datasets often learn sensitive information, which raises significant social and legal concerns under principles such as the "Right to be forgotten." Retraining entire models from scratch to…

计算与语言 · 计算机科学 2025-04-18 Kun-Woo Kim , Ji-Hoon Park , Ju-Min Han , Seong-Whan Lee

Policy-gradient methods are widely used in reinforcement learning, yet training often becomes unstable or slows down as learning progresses. We study this phenomenon through the noise-to-signal ratio (NSR) of a policy-gradient estimator,…

最优化与控制 · 数学 2026-02-10 Haoyu Han , Heng Yang