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In-context learning (ICL) allows transformer-based language models that are pre-trained on general text to quickly learn a specific task with a few "task demonstrations" without updating their parameters, significantly boosting their…

Computation and Language · Computer Science 2024-12-17 Zijian Zhou , Xiaoqiang Lin , Xinyi Xu , Alok Prakash , Daniela Rus , Bryan Kian Hsiang Low

Transformer-based language models excel at in-context learning (ICL), where they can adapt to new tasks based on contextual examples, without parameter updates. In a specific form of ICL, which we refer to as \textit{contextual recall},…

Machine Learning · Computer Science 2026-03-24 Bhavya Vasudeva , Puneesh Deora , Alberto Bietti , Vatsal Sharan , Christos Thrampoulidis

Large language models (LLMs) exploit in-context learning (ICL) to solve tasks with only a few demonstrations, but its mechanisms are not yet well-understood. Some works suggest that LLMs only recall already learned concepts from…

Computation and Language · Computer Science 2023-05-18 Jane Pan , Tianyu Gao , Howard Chen , Danqi Chen

Recent works have suggested that In-Context Learning (ICL) operates in dual modes, i.e. task retrieval (remember learned patterns from pre-training) and task learning (inference-time ''learning'' from demonstrations). However, disentangling…

Computation and Language · Computer Science 2025-08-28 Zhouxiang Fang , Aayush Mishra , Muhan Gao , Anqi Liu , Daniel Khashabi

Many recent language models (LMs) of Transformers family exhibit so-called in-context learning (ICL) ability, manifested in the LMs' ability to modulate their function by a task described in a natural language input. Previous work curating…

Computation and Language · Computer Science 2023-05-24 Michal Štefánik , Marek Kadlčík

Large language models (LLMs) demonstrate emergent in-context learning capabilities, where they adapt to new tasks based on example demonstrations. However, in-context learning has seen limited effectiveness in many settings, is difficult to…

Machine Learning · Computer Science 2024-02-15 Sheng Liu , Haotian Ye , Lei Xing , James Zou

Transformers have a remarkable ability to learn and execute tasks based on examples provided within the input itself, without explicit prior training. It has been argued that this capability, known as in-context learning (ICL), is a…

Machine Learning · Statistics 2025-10-06 Yue M. Lu , Mary I. Letey , Jacob A. Zavatone-Veth , Anindita Maiti , Cengiz Pehlevan

This thesis investigates two key phenomena in large language models (LLMs): in-context learning (ICL) and model collapse. We study ICL in a linear transformer with tied weights trained on linear regression tasks, and show that minimising…

Artificial Intelligence · Computer Science 2026-01-06 Josef Ott

In-context learning (ICL) refers to the ability of a model to learn new tasks from examples in its input without any parameter updates. In contrast to previous theories of ICL relying on toy models and data settings, recently it has been…

Machine Learning · Computer Science 2025-12-15 Francesco Innocenti , El Mehdi Achour

In-context learning (ICL) enables large language models to adapt to new tasks from demonstrations without parameter updates. Despite extensive empirical studies, a principled understanding of ICL emergence at scale remains more elusive. We…

Machine Learning · Computer Science 2025-11-11 Sushant Mehta , Ishan Gupta

In-context learning (ICL) with dynamically selected demonstrations combines the flexibility of prompting large language models (LLMs) with the ability to leverage training data to improve performance. While ICL has been highly successful…

Computation and Language · Computer Science 2025-06-17 Shivanshu Gupta , Sameer Singh , Ashish Sabharwal , Tushar Khot , Ben Bogin

Large autoregressive models like Transformers can solve tasks through in-context learning (ICL) without learning new weights, suggesting avenues for efficiently solving new tasks. For many tasks, e.g., linear regression, the data…

Machine Learning · Computer Science 2025-06-17 Sarthak Mittal , Eric Elmoznino , Leo Gagnon , Sangnie Bhardwaj , Tom Marty , Dhanya Sridhar , Guillaume Lajoie

Neural sequence models based on the transformer architecture have demonstrated remarkable \emph{in-context learning} (ICL) abilities, where they can perform new tasks when prompted with training and test examples, without any parameter…

Machine Learning · Computer Science 2023-07-07 Yu Bai , Fan Chen , Huan Wang , Caiming Xiong , Song Mei

In-Context Learning (ICL) empowers Large Language Models (LLMs) with the ability to learn from a few examples provided in the prompt, enabling downstream generalization without the requirement for gradient updates. Despite encouragingly…

Computation and Language · Computer Science 2025-01-28 Haitao Mao , Guangliang Liu , Yao Ma , Rongrong Wang , Kristen Johnson , Jiliang Tang

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…

Computation and Language · Computer Science 2025-02-11 Aliakbar Nafar , Kristen Brent Venable , Parisa Kordjamshidi

Pretrained transformers exhibit the remarkable ability of in-context learning (ICL): they can learn tasks from just a few examples provided in the prompt without updating any weights. This raises a foundational question: can ICL solve…

Machine Learning · Computer Science 2023-11-09 Allan Raventós , Mansheej Paul , Feng Chen , Surya Ganguli

In-context learning (ICL) is a type of prompting where a transformer model operates on a sequence of (input, output) examples and performs inference on-the-fly. In this work, we formalize in-context learning as an algorithm learning problem…

Machine Learning · Computer Science 2023-02-07 Yingcong Li , M. Emrullah Ildiz , Dimitris Papailiopoulos , Samet Oymak

Transformer neural networks can exhibit a surprising capacity for in-context learning (ICL) despite not being explicitly trained for it. Prior work has provided a deeper understanding of how ICL emerges in transformers, e.g. through the…

Machine Learning · Computer Science 2023-12-13 Aaditya K. Singh , Stephanie C. Y. Chan , Ted Moskovitz , Erin Grant , Andrew M. Saxe , Felix Hill

In-Context Learning (ICL) enables pretrained LLMs to adapt to downstream tasks by conditioning on a small set of input-output demonstrations, without any parameter updates. Although there have been many theoretical efforts to explain how…

Machine Learning · Computer Science 2026-03-23 Xuhan Tong , Yuchen Zeng , Jiawei Zhang

Transformers have emerged as the dominant architecture in the field of deep learning, with a broad range of applications and remarkable in-context learning (ICL) capabilities. While not yet fully understood, ICL has already proved to be an…

Machine Learning · Computer Science 2025-08-08 Arik Reuter , Tim G. J. Rudner , Vincent Fortuin , David Rügamer