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In-Context Learning (ICL)

LLMs learning to perform tasks from examples provided in the prompt without weight updates.

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Definition

In-context learning is the ability of LLMs to learn from demonstrations provided within the input prompt.

Key Insight: The model learns the pattern from examples without any gradient updates - it's all inference-time learning.

How It Works: 1. Include task demonstrations in prompt 2. Model recognizes the pattern 3. Applies pattern to new input

Factors Affecting Performance: - Example quality and relevance - Example ordering - Format consistency - Model size (emergent in large models)

Research Findings: - Label correctness matters less than format - More examples generally help - Example diversity important

Examples

Including example Q&A pairs before your actual question to guide the model's response format.

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