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π§ AIβͺ NeutralImportance 7/10
Learning to Answer from Correct Demonstrations
arXiv β CS AI|Nirmit Joshi, Gene Li, Siddharth Bhandari, Shiva Prasad Kasiviswanathan, Cong Ma, Nathan Srebro||7 views
π€AI Summary
Researchers propose a new approach for training AI models to generate correct answers from demonstrations, using imitation learning in contextual bandits rather than traditional supervised fine-tuning. The method achieves better sample complexity and works with weaker assumptions about the underlying reward model compared to existing likelihood-maximization approaches.
Key Takeaways
- βNew imitation learning framework outperforms traditional supervised fine-tuning for multi-correct-answer scenarios
- βMethod requires only bounded-complexity reward models rather than bounded-complexity policy classes, a weaker assumption
- βAchieves logarithmic sample complexity in reward class cardinality with optimistic convergence rates
- βApproach works with arbitrarily adaptive demonstrations and handles single-step contextual bandit problems
- βResearch addresses fundamental challenges in AI training where multiple correct answers exist for given prompts
#machine-learning#imitation-learning#contextual-bandits#supervised-fine-tuning#ai-training#reward-models#sample-complexity#arxiv
Read Original βvia arXiv β CS AI
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