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Ran He

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#machine learning Preprint Sep 2026

Bridging the Confidence Gap: Temperature Scaling for Calibrating Test-Time Prompt Tuning

Test-time prompt tuning (TPT) enables adaptation on a single test instance, achieving improved accuracy but often sacrificing calibration performance. Most existing calibration methods introduce additional regularization terms to promote dispersion across text embeddings and reduce calibration error, yet these methods...

Yu-Wei Liang, Jian Liang, Dapeng Hu et al. · 0 citations
Preprint Jul 2026

AgentStream: How Well Do Self-Evolving LLM Agents Perform Under Streaming Tasks?

AgentStream is introduced, a unified framework that evaluates self-evolving agents spanning diverse evolution components by organizing agentic benchmarks into a configurable task stream and instantiating the \texttt{Isolated}, \texttt{Sequential}, and \texttt{Interleaved} streaming scenarios at test time, which progres...

Dong Yan, Jian Liang, Dapeng Hu et al. · 1 citation
#machine learning Preprint Sep 2026

To Adapt or Not to Adapt? Selective Adaptation for Vision-Language Models

This work proposes Cross-Augmentation Similarity (CAS), a simple baseline that performs adaptation only when predictions across augmented views exhibit low similarity, which not only preserves but in some cases improves overall accuracy, even when skipping nearly 85% of the adaptation process.

Si-Ru Jiang, Yu-Wei Liang, Jian Liang et al. · 1 citation
Preprint Jul 2026

USE: A Unified Self-Ensembling Framework for Test-Time Prompt Tuning

Test-time adaptation (TTA) has emerged as a popular paradigm for improving the performance of vision-language models (e.g., CLIP) on downstream tasks. Among existing CLIP-based TTA methods, Test-Time Prompt Tuning (TPT) is a pioneering work that optimizes textual prompts using multiple test-time augmentations and remai...

Siru Jiang, Jian Liang, Ran He et al. · 0 citations

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