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Shijin Gong

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#machine learning Preprint Sep 2026

Can Tabular Foundation Models Amortize Statistical Inference?

TabCon is developed, an amortized inference system built on a tabular foundation model that produces confidence intervals for new datasets through a simple forward pass, and offers considerably greater computational efficiency than the classical bootstrap procedure.

Kai Ye, Shi-Jin Gong, Hong-Yi Zhou et al. · 0 citations

BASIS: Batchwise Advantage Estimation from Single-Rollout Information Sharing for LLM Reasoning

BASIS, a critic-free post-training algorithm designed to address the tradeoff between computational efficiency and sample efficiency in value estimation and policy learning, achieves performance close to multi-rollout GRPO-type baselines and often outperforms single-rollout REINFORCE-type baselines.

Shi-Jin Gong, Erhan Xu, Kai Ye et al. · 2 citations
Preprint Jul 2026

Optimal Mixture-of-Experts Model Averaging for Conditional Generative Models

Conditional generative models have emerged as powerful tools for sampling from target conditional distributions, driving substantial advances across a wide range of scientific and applied domains. As these models proliferate, practitioners often face multiple plausible generators whose performance can vary with the tas...

Shijin Gong, Baihua He, Xinyu Zhang · 0 citations

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