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News/Rethinking the Test-Time Prompt Tuning Objective from the Perspective of Calibration
arxiv
PublishedSeptember 1, 2026 at 4:00 AM

Rethinking the Test-Time Prompt Tuning Objective from the Perspective of Calibration

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arXiv:2608.30230v1 Announce Type: new Abstract: Test-time prompt tuning (TPT) has emerged as a powerful paradigm, refining prompts for each test sample via entropy minimization (EM) over multiple augmented views. However, we identify a limitation in the standard EM-based adaptation: it inherently dr

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