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In-context learning (ICL) is the remarkable ability displayed by some machine learning models to learn from examples provided in a user prompt without any model parameter updates. ICL was first observed in the domain of large language…

Machine Learning · Computer Science 2025-11-03 Shao-Ting Chiu , Junyuan Hong , Ulisses Braga-Neto

Large language models (LLMs) have initiated a paradigm shift in transfer learning. In contrast to the classic pretraining-then-finetuning procedure, in order to use LLMs for downstream prediction tasks, one only needs to provide a few…

Computation and Language · Computer Science 2025-09-16 Chi Han , Ziqi Wang , Han Zhao , Heng Ji

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…

Machine Learning · Computer Science 2024-10-08 Qingyu Yin , Xuzheng He , Luoao Deng , Chak Tou Leong , Fan Wang , Yanzhao Yan , Xiaoyu Shen , Qiang Zhang

The emergent ability of Large Language Models to use a small number of examples to learn to perform in novel domains and tasks, also called in-context learning (ICL). In this work, we show that a much smaller model can be trained to perform…

Computation and Language · Computer Science 2023-09-18 Raphael Reinauer , Patrick Simianer , Kaden Uhlig , Johannes E. M. Mosig , Joern Wuebker

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

In-context learning (ICL) allows Transformers to adapt to novel tasks without weight updates, yet the underlying algorithms remain poorly understood. We adopt a statistical decision-theoretic perspective by investigating simple binary…

Machine Learning · Computer Science 2026-03-13 Faris Chaudhry , Siddhant Gadkari

LLMs have shown strong in-context learning (ICL) abilities, but have not yet been extended to signal processing systems. Inspired by their design, we have proposed for the first time ICL using transformer models applicable to motor…

Machine Learning · Computer Science 2026-02-10 Tong Jian , Tianyu Dai , Tao Yu

Transformers have demonstrated impressive in-context learning (ICL) capabilities, raising the question of whether they can serve as metalearners that adapt to new tasks using only a small number of in-context examples, without any further…

Machine Learning · Computer Science 2025-10-23 Roey Magen , Gal Vardi

In-Context Learning (ICL) and Instruction Tuning (IT) are two primary paradigms of adopting Large Language Models (LLMs) to downstream applications. However, they are significantly different. In ICL, a set of demonstrations are provided at…

Computation and Language · Computer Science 2023-11-20 Hanyu Duan , Yixuan Tang , Yi Yang , Ahmed Abbasi , Kar Yan Tam

Transformers exhibit in-context learning (ICL): the ability to use novel information presented in the context without additional weight updates. Recent work shows that ICL emerges when models are trained on a sufficiently diverse set of…

Machine Learning · Computer Science 2024-12-13 Alex Nguyen , Gautam Reddy

Despite the advancements in in-context learning (ICL) for large language models (LLMs), current research centers on specific prompt engineering, such as demonstration selection, with the expectation that a single iteration of demonstrations…

Computation and Language · Computer Science 2024-06-05 Jiaxi Yang , Binyuan Hui , Min Yang , Bailin Wang , Bowen Li , Binhua Li , Fei Huang , Yongbin Li

In-context learning (ICL) approaches typically leverage prompting to condition decoder-only language model generation on reference information. Just-in-time processing of a context is inefficient due to the quadratic cost of self-attention…

In-context learning (ICL) has garnered significant attention for its ability to grasp functions/tasks from demonstrations. Recent studies suggest the presence of a latent task/function vector in LLMs during ICL. Merullo et al. (2024) showed…

Machine Learning · Computer Science 2025-08-14 Dake Bu , Wei Huang , Andi Han , Atsushi Nitanda , Qingfu Zhang , Hau-San Wong , Taiji Suzuki

In-context learning (ICL) emerges as a promising capability of large language models (LLMs) by providing them with demonstration examples to perform diverse tasks. However, the underlying mechanism of how LLMs learn from the provided…

Computation and Language · Computer Science 2023-12-20 Lean Wang , Lei Li , Damai Dai , Deli Chen , Hao Zhou , Fandong Meng , Jie Zhou , Xu Sun

The binary exponential backoff scheme is widely used in WiFi 7 and still incurs poor throughput performance under dynamic channel environments. Recent model-based approaches (e.g., non-persistent and $p$-persistent CSMA) simply optimize…

Machine Learning · Computer Science 2025-09-12 Shugang Hao , Hongbo Li , Lingjie Duan

In-context learning (ICL) has become a prominent paradigm to rapidly customize LLMs to new tasks without fine-tuning. However, despite the empirical evidence of its usefulness, we still do not truly understand how ICL works. In this paper,…

Machine Learning · Computer Science 2026-01-06 Harshita Narnoli , Mihai Surdeanu

In-Context Learning (ICL) is a critical capability of Large Language Models (LLMs) as it empowers them to comprehend and reason across interconnected inputs. Evaluating the ICL ability of LLMs can enhance their utilization and deepen our…

Computation and Language · Computer Science 2024-12-10 Wentong Chen , Yankai Lin , ZhenHao Zhou , HongYun Huang , Yantao Jia , Zhao Cao , Ji-Rong Wen

Despite the remarkable success of transformer-based models in various real-world tasks, their underlying mechanisms remain poorly understood. Recent studies have suggested that transformers can implement gradient descent as an in-context…

Machine Learning · Computer Science 2024-08-09 Xingwu Chen , Lei Zhao , Difan Zou

In-Context Learning (ICL) has emerged as an important new paradigm in natural language processing and large language model (LLM) applications. However, the theoretical understanding of the ICL mechanism remains limited. This paper aims to…

Information Theory · Computer Science 2025-10-17 Huaze Tang , Tianren Peng , Shao-lun Huang

In-Context Learning (ICL) has emerged as a pivotal capability of auto-regressive large language models, yet it is hindered by a notable sensitivity to the ordering of context examples regardless of their mutual independence. To address this…

Computation and Language · Computer Science 2025-05-09 Lizhe Fang , Yifei Wang , Khashayar Gatmiry , Lei Fang , Yisen Wang