AI Termcirca 2016· Added May 26, 2026
Fine-Tuning (in Machine Learning)
Fine-tuning adjusts pre-trained models with new data for specific tasks or domains.
Fine-tuning is an optimization technique applied post-training to refine a machine learning model's performance on specific datasets or tasks. This process entails taking a pre-trained model—often trained on large datasets—and incrementally training it further using smaller task-specific datasets. By fine-tuning the model's parameters, practitioners can significantly improve performance without requiring extensive computational resources typically needed for training from scratch.
Examples
- A sentiment analysis model fine-tuned with industry-specific jargon improves email tagging accuracy.
- Fine-tuning a voice recognition system using diverse accents enhances its global applicability.
Common misconceptions
- Some think fine-tuning requires as much data as initial training; it generally needs far less.
- It's not limited to language models; visual models also benefit greatly from fine-tuning.
Related terms
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