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Open-sourced large language models (LLMs) have demonstrated remarkable efficacy in various tasks with instruction tuning. However, these models can sometimes struggle with tasks that require more specialized knowledge such as translation.…

计算与语言 · 计算机科学 2024-01-23 Jiali Zeng , Fandong Meng , Yongjing Yin , Jie Zhou

We introduce a novel algorithm for the detection of possible sample corruption such as mislabeled samples in a training dataset given a small clean validation set. We use a set of inclusion variables which determine whether or not any…

机器学习 · 计算机科学 2019-05-16 Siavash Golkar , Kyunghyun Cho

As foundation models continue to scale, the size of trained models grows exponentially, presenting significant challenges for their evaluation. Current evaluation practices involve curating increasingly large datasets to assess the…

机器学习 · 统计学 2025-05-08 Ganghua Wang , Zhaorun Chen , Bo Li , Haifeng Xu

Recent research has explored distilling knowledge from large language models (LLMs) to optimize retriever models, especially within the retrieval-augmented generation (RAG) framework. However, most existing training methods rely on…

信息检索 · 计算机科学 2024-06-19 Zizhong Li , Haopeng Zhang , Jiawei Zhang

Instruction tuning has emerged as the key in aligning large language models (LLMs) with specific task instructions, thereby mitigating the discrepancy between the next-token prediction objective and users' actual goals. To reduce the labor…

计算与语言 · 计算机科学 2024-04-10 Zifeng Wang , Chun-Liang Li , Vincent Perot , Long T. Le , Jin Miao , Zizhao Zhang , Chen-Yu Lee , Tomas Pfister

Recent advancements in Large Language Models (LLMs) have expanded the horizons of natural language understanding and generation. Notably, the output control and alignment with the input of LLMs can be refined through instruction tuning.…

计算与语言 · 计算机科学 2023-10-19 Ming Li , Lichang Chen , Jiuhai Chen , Shwai He , Heng Huang , Jiuxiang Gu , Tianyi Zhou

Large language models (LLMs) excel at reasoning, yet post-training remains critical for aligning their behavior with task goals. Existing reinforcement learning (RL) methods often depend on costly human annotations or external reward…

计算与语言 · 计算机科学 2025-06-12 Pengyi Li , Matvey Skripkin , Alexander Zubrey , Andrey Kuznetsov , Ivan Oseledets

In the swiftly expanding domain of Natural Language Processing (NLP), the potential of GPT-based models for the financial sector is increasingly evident. However, the integration of these models with financial datasets presents challenges,…

计算与语言 · 计算机科学 2023-11-14 Neng Wang , Hongyang Yang , Christina Dan Wang

Instruction tuning improves the performance of large language models (LLMs), but it heavily relies on high-quality training data. Recently, LLMs have been used to synthesize instruction data using seed question-answer (QA) pairs. However,…

Fine-tuning and in-context learning (ICL) are two prevalent methods in imbuing large language models with task-specific knowledge. It is commonly believed that fine-tuning can surpass ICL given sufficient training samples as it allows the…

机器学习 · 计算机科学 2024-10-08 Qingyu Yin , Xuzheng He , Luoao Deng , Chak Tou Leong , Fan Wang , Yanzhao Yan , Xiaoyu Shen , Qiang Zhang

We propose a constraint learning schema for fine-tuning Large Language Models (LLMs) with attribute control. Given a training corpus and control criteria formulated as a sequence-level constraint on model outputs, our method fine-tunes the…

In-context learning (ICL) is an astonishing emergent ability of large language models (LLMs). By presenting a prompt that includes multiple input-output pairs as examples and introducing a new query input, models can generate the…

机器学习 · 计算机科学 2023-10-06 Timothy Chu , Zhao Song , Chiwun Yang

The dominant approach to generating from language models subject to some constraint is locally constrained decoding (LCD), incrementally sampling tokens at each time step such that the constraint is never violated. Typically, this is…

While semi-supervised learning (SSL) has yielded promising results, the more realistic SSL scenario remains to be explored, in which the unlabeled data exhibits extremely high recognition difficulty, e.g., fine-grained visual classification…

机器学习 · 计算机科学 2023-12-20 Yue Duan , Zhen Zhao , Lei Qi , Luping Zhou , Lei Wang , Yinghuan Shi

Large language models (LLMs) have achieved significant progress in natural language processing but face challenges in deployment due to high memory and computational requirements. Weight quantization is a common approach to address these…

机器学习 · 计算机科学 2025-06-17 Fangxin Liu , Ning Yang , Junping Zhao , Tao Yang , Haibing Guan , Li Jiang

Instruction fine-tuning of large language models (LLMs) often involves selecting a subset of instruction training data from a large candidate pool, using a small query set from the target task. Despite growing interest, the literature on…

机器学习 · 计算机科学 2026-02-17 Nihal V. Nayak , Paula Rodriguez-Diaz , Neha Hulkund , Sara Beery , David Alvarez-Melis

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

Classifier-free guidance (CFG) has become an essential component of modern conditional diffusion models. Although highly effective in practice, the underlying mechanisms by which CFG enhances quality, detail, and prompt alignment are not…

机器学习 · 计算机科学 2025-06-25 Seyedmorteza Sadat , Tobias Vontobel , Farnood Salehi , Romann M. Weber

Data selection for instruction tuning is crucial for improving the performance of large language models (LLMs) while reducing training costs. In this paper, we propose Refined Contribution Measurement with In-Context Learning (RICo), a…

计算与语言 · 计算机科学 2025-05-20 Yixin Yang , Qingxiu Dong , Linli Yao , Fangwei Zhu , Zhifang Sui

Class imbalance poses a significant challenge in classification tasks, where traditional approaches often lead to biased models and unreliable predictions. Undersampling and oversampling techniques have been commonly employed to address…