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Author

Mohammad Ghavamzadeh

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#artificial intelligence Preprint Sep 2026

Alleviating Hallucination in Reasoning Tasks with Training-Free Uncertainty-Guided Steering

Recent work on hallucination detection in large language models has shown that, for a fixed pre-trained model and reasoning task, it is possible to estimate the model's confidence in the correctness of its outputs. Such uncertainty estimates have primarily been used to improve truthfulness by detecting or filtering con...

Li-Tian Liu, Qi-Qi Hou, Yu-Bin Jian et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Transformers as In-Context Samplers: From Closed-Form Diffusion to Estimation-Free Sampling

It is proved that in-context learning extends further to data generation: frozen transformers can simulate iterative generative samplers from in-context samples, and it is proved that transformers can approximate an energy-based sampler.

Arman Adibi, Alireza Jafari, Mohammad Ghavamzadeh et al. · 0 citations

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