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When using supervised fine-tuning (SFT) to adapt large language models (LLMs) to specific domains, a significant challenge arises: should we use the entire SFT dataset for fine-tuning? Common practice often involves fine-tuning directly on…

计算与语言 · 计算机科学 2025-05-26 Xiang Liu , Zhaoxiang Liu , Peng Wang , Kohou Wang , Huan Hu , Kai Wang , Shiguo Lian

Despite the strong performance of Large Language Models (LLMs) on complex instruction-following tasks, precise control of output length remains a persistent challenge. Existing methods primarily attempt to enforce length constraints by…

计算与语言 · 计算机科学 2026-03-23 Wei Zhang , Lintong Du , Yuanhe Zhang , Zhenhong Zhou , Kun Wang , Li Sun , Sen Su

Supervised Fine-Tuning (SFT) is a critical step for enhancing the instruction-following capabilities of Large Language Models (LLMs) and adapting them to specialized domains. However, SFT often leads to a degradation of the model's general…

计算与语言 · 计算机科学 2025-07-01 Fei Ding , Baiqiao Wang

In-Context Learning (ICL) enables large language models (LLMs) to achieve rapid task adaptation by learning from demonstrations. With the increase in available context length of LLMs, recent experiments have shown that the performance of…

计算与语言 · 计算机科学 2024-08-27 Peiwen Yuan , Shaoxiong Feng , Yiwei Li , Xinglin Wang , Yueqi Zhang , Chuyi Tan , Boyuan Pan , Heda Wang , Yao Hu , Kan Li

Although supervised finetuning (SFT) has emerged as an essential technique to align large language models with humans, it is considered superficial, with style learning being its nature. At the same time, recent works indicate the…

计算与语言 · 计算机科学 2024-02-12 Ming Shen

FlashAttention (Dao, 2023) effectively reduces the quadratic peak memory usage to linear in training transformer-based large language models (LLMs) on a single GPU. In this paper, we introduce DISTFLASHATTN, a distributed memory-efficient…

机器学习 · 计算机科学 2024-04-02 Dacheng Li , Rulin Shao , Anze Xie , Eric P. Xing , Xuezhe Ma , Ion Stoica , Joseph E. Gonzalez , Hao Zhang

Advances in language modeling have led to the development of deep attention-based models that are performant across a wide variety of natural language processing (NLP) problems. These language models are typified by a pre-training process…

人机交互 · 计算机科学 2020-09-16 Joseph F DeRose , Jiayao Wang , Matthew Berger

Large language models (LLMs) have become the cornerstone of modern AI. However, the existing paradigm of next-token prediction fundamentally limits their ability to form coherent, high-level concepts, making it a critical barrier to…

机器学习 · 计算机科学 2025-06-16 Michael K. Chen , Xikun Zhang , Jiaxing Huang , Dacheng Tao

Document-level context for neural machine translation (NMT) is crucial to improve the translation consistency and cohesion, the translation of ambiguous inputs, as well as several other linguistic phenomena. Many works have been published…

计算与语言 · 计算机科学 2023-06-09 Christian Herold , Hermann Ney

Modeling long sequences is crucial for various large-scale models; however, extending existing architectures to handle longer sequences presents significant technical and resource challenges. In this paper, we propose an efficient and…

计算与语言 · 计算机科学 2024-10-08 Ning Wang , Zekun Li , Tongxin Bai , Guoqi Li

Supervised Fine-Tuning (SFT) is commonly used to train language models to imitate annotated responses for given instructions. In this paper, we propose Critique Fine-Tuning (CFT), a method more effective than SFT for reasoning tasks.…

计算与语言 · 计算机科学 2025-04-01 Yubo Wang , Xiang Yue , Wenhu Chen

With the rapid advancement of Large Language Models (LLMs), the Chain-of-Thought (CoT) component has become significant for complex reasoning tasks. However, in conventional Supervised Fine-Tuning (SFT), the model could allocate…

计算与语言 · 计算机科学 2025-12-25 Xiaofeng Shi , Qian Kou , Yuduo Li , Hua Zhou

Attention is the cornerstone of modern Large Language Models (LLMs). Yet its quadratic complexity hinders efficiency and scalability, especially for long-context processing. A promising approach is to leverage sparsity in attention.…

计算与语言 · 计算机科学 2025-02-18 Yizhao Gao , Zhichen Zeng , Dayou Du , Shijie Cao , Peiyuan Zhou , Jiaxing Qi , Junjie Lai , Hayden Kwok-Hay So , Ting Cao , Fan Yang , Mao Yang

Long-tailed semi-supervised learning (LTSSL) presents a formidable challenge where models must overcome the scarcity of tail samples while mitigating the noise from unreliable pseudo-labels. Most prior LTSSL methods are designed to train…

机器学习 · 计算机科学 2026-04-09 Zhiyuan Huang , Jiahao Chen , Bing Su

Large-scale vision-language models (VLMs) such as CLIP exhibit strong zero-shot generalization, but adapting them to downstream tasks typically requires costly labeled data. Existing unsupervised self-training methods rely on…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Qian-Wei Wang , Guanghao Meng , Ren Cai , Yaguang Song , Shu-Tao Xia

This research addresses a fundamental question in AI: whether large language models truly understand concepts or simply recognize patterns. The authors propose bidirectional reasoning,the ability to apply transformations in both directions…

Despite the effectiveness of data selection for large language models (LLMs) during pretraining and instruction fine-tuning phases, improving data efficiency in supervised fine-tuning (SFT) for specialized domains poses significant…

计算与语言 · 计算机科学 2024-12-06 Yu Yang , Siddhartha Mishra , Jeffrey N Chiang , Baharan Mirzasoleiman

Supervised fine-tuning (SFT) provides the standard approach for teaching LLMs new behaviors from offline expert demonstrations. However, standard SFT uniformly fits all samples -- including those with low likelihood under the base model --…

机器学习 · 计算机科学 2026-05-15 Mahdi Sabbaghi , George Pappas , Adel Javanmard , Hamed Hassani

Long context fine-tuning of large language models(LLMs) involves training on datasets that are predominantly composed of short sequences and a small proportion of longer sequences. However, existing approaches overlook this long-tail…

分布式、并行与集群计算 · 计算机科学 2025-07-14 Xiulong Yuan , Hongtao Xu , Wenting Shen , Ang Wang , Xiafei Qiu , Jie Zhang , Yuqiong Liu , Bowen Yu , Junyang Lin , Mingzhen Li , Weile Jia , Yong Li , Wei Lin

Although LLMs have demonstrated improved performance by scaling parallel test-time compute, doing so relies on generating reasoning paths that are both diverse and accurate. For challenging problems, the forking tokens that trigger diverse…

计算与语言 · 计算机科学 2026-03-03 Sheng Jia , Xiao Wang , Shiva Prasad Kasiviswanathan