AINeutralarXiv – CS AI · 6h ago6/10
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HyperLens: Quantifying Cognitive Effort in LLMs with Fine-grained Confidence Trajectory
Researchers introduce HyperLens, a high-resolution analysis tool that measures cognitive effort in large language models by tracking confidence trajectories across transformer layers. The study reveals that complex tasks consistently require higher cognitive effort and identifies how standard fine-tuning can paradoxically reduce model performance by decreasing necessary cognitive investment.