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We formalize a new concept for LLMs, context-enhanced learning. It involves standard gradient-based learning on text except that the context is enhanced with additional data on which no auto-regressive gradients are computed. This setting…

机器学习 · 计算机科学 2025-06-06 Xingyu Zhu , Abhishek Panigrahi , Sanjeev Arora

Real-world data often exhibits long-tailed distributions with heavy class imbalance, posing great challenges for deep recognition models. We identify a persisting dilemma on the value of labels in the context of imbalanced learning: on the…

机器学习 · 计算机科学 2020-09-29 Yuzhe Yang , Zhi Xu

Generative Large Language Models (LLMs) are capable of being in-context learners. However, the underlying mechanism of in-context learning (ICL) is still a major research question, and experimental research results about how models exploit…

计算与语言 · 计算机科学 2025-02-11 Aliakbar Nafar , Kristen Brent Venable , Parisa Kordjamshidi

Background: Fairness testing for deep learning systems has been becoming increasingly important. However, much work assumes perfect context and conditions from the other parts: well-tuned hyperparameters for accuracy; rectified bias in…

软件工程 · 计算机科学 2024-08-13 Chengwen Du , Tao Chen

Partial Multi-label Learning (PML) aims to induce the multi-label predictor from datasets with noisy supervision, where each training instance is associated with several candidate labels but only partially valid. To address the noisy issue,…

机器学习 · 计算机科学 2020-06-23 Ximing Li , Yang Wang

In-context learning (ICL) suffers from oversensitivity to the prompt, making it unreliable in real-world scenarios. We study the sensitivity of ICL with respect to multiple perturbation types. First, we find that label bias obscures the…

计算与语言 · 计算机科学 2024-01-30 Yanda Chen , Chen Zhao , Zhou Yu , Kathleen McKeown , He He

Visual in-context learning (VICL) enables visual foundation models to handle multiple tasks by steering them with demonstrative prompts. The choice of such prompts largely influences VICL performance, standing out as a key challenge. Prior…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Tianci Luo , Haohao Pan , Jinpeng Wang , Niu Lian , Xinrui Chen , Bin Chen , Shu-Tao Xia , Chun Yuan

In-context learning (ICL) is a new paradigm for natural language processing that utilizes Generative Pre-trained Transformer (GPT)-like models. This approach uses prompts that include in-context demonstrations to generate the corresponding…

计算与语言 · 计算机科学 2024-01-24 Momin Abbas , Yi Zhou , Parikshit Ram , Nathalie Baracaldo , Horst Samulowitz , Theodoros Salonidis , Tianyi Chen

Generative Artificial Intelligence (GenAI) is now widespread in education, yet the efficacy of GenAI systems remains constrained by the quality and interpretation of the labeled data used to train and evaluate them. Studies commonly report…

计算机与社会 · 计算机科学 2026-04-01 Danielle R. Thomas , Conrad Borchers , Kirk P. Vanacore , Kenneth R. Koedinger , René F. Kizilcec

In-Context Reinforcement Learning (ICRL) enables Large Language Models (LLMs) to learn online from external rewards directly within the context window. However, a central challenge in ICRL is reward estimation, as models typically lack…

计算与语言 · 计算机科学 2026-04-02 Wenxuan Jiang , Yuxin Zuo , Zijian Zhang , Xuecheng Wu , Zining Fan , Wenxuan Liu , Li Chen , Xiaoyu Li , Xuezhi Cao , Xiaolong Jin , Ninghao Liu

In-context learning (ICL) enables large language models (LLMs) to perform new tasks using only a few demonstrations. However, in Named Entity Recognition (NER), existing ICL methods typically rely on task-agnostic semantic similarity for…

计算与语言 · 计算机科学 2025-10-30 Fan Bai , Hamid Hassanzadeh , Ardavan Saeedi , Mark Dredze

Large language models (LLM) have emerged as a powerful tool for AI, with the key ability of in-context learning (ICL), where they can perform well on unseen tasks based on a brief series of task examples without necessitating any…

机器学习 · 计算机科学 2024-05-31 Zhenmei Shi , Junyi Wei , Zhuoyan Xu , Yingyu Liang

In-context learning (ICL) unfolds as large language models become capable of inferring test labels conditioned on a few labeled samples without any gradient update. ICL-enabled large language models provide a promising step forward toward…

计算与语言 · 计算机科学 2023-06-27 Eshaan Tanwar , Subhabrata Dutta , Manish Borthakur , Tanmoy Chakraborty

Whereas the recent emergence of large language models (LLMs) like ChatGPT has exhibited impressive general performance, it still has a large gap with fully-supervised models on specific tasks such as multi-span question answering. Previous…

计算与语言 · 计算机科学 2023-06-08 Zixian Huang , Jiaying Zhou , Gengyang Xiao , Gong Cheng

Ever since the development of GPT-3 in the natural language processing (NLP) field, in-context learning (ICL) has played an essential role in utilizing large language models (LLMs). By presenting the LM utterance-label demonstrations at the…

音频与语音处理 · 电气工程与系统科学 2024-06-18 Ming-Hao Hsu , Kai-Wei Chang , Shang-Wen Li , Hung-yi Lee

In-context learning (ICL) has emerged as an effective solution for few-shot learning with large language models (LLMs). However, how LLMs leverage demonstrations to specify a task and learn a corresponding computational function through ICL…

"Gold" and "ground truth" human-mediated labels have error. The effects of this error can escape commonly reported metrics of label quality or obscure questions of accuracy, bias, fairness, and usefulness during model evaluation. This study…

计算与语言 · 计算机科学 2024-11-26 Michael Hardy

In this paper, we answer the question of when inserting label noise (less informative labels) can instead return us more accurate and fair models. We are primarily inspired by three observations: 1) In contrast to reducing label noise…

机器学习 · 计算机科学 2021-11-09 Yang Liu , Jialu Wang

Recent studies highlight the effectiveness of using in-context learning (ICL) to steer large language models (LLMs) in processing tabular data, a challenging task given the structured nature of such data. Despite advancements in…

机器学习 · 计算机科学 2024-08-20 Jingyu Hu , Weiru Liu , Mengnan Du

As one of the most exciting features of large language models (LLMs), in-context learning is a mixed blessing. While it allows users to fast-prototype a task solver with only a few training examples, the performance is generally sensitive…

计算与语言 · 计算机科学 2023-10-17 Zhongtao Jiang , Yuanzhe Zhang , Cao Liu , Jun Zhao , Kang Liu