Author

Zhuo-Qun Li

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Preprint Oct 2026

OmniSimulator: Aligning Small Language Models for Authentic Heterogeneous Behavior Modeling

Large language models (LLMs) have shown great potential as general-purpose user simulators for interactive systems. Prior studies have demonstrated that training on high-quality data can substantially improve model reasoning and downstream task performance. However, the upper bound of user simulation is still constrain...

Jiawei Chen, Ruo-Xi Xu, Boxi Cao et al. · 0 citations

#artificial intelligence Preprint Oct 2026

Bidirectional Preference Synthesis: Learning Prompt-Conditioned Preferences from Boundary Failures

Correction-based offline preference pipelines commonly treat model failures only as rejected responses under the original prompt. This supervision is incomplete for boundary failures: responses that violate the given instruction yet coherently satisfy a nearby intent or constraint setting. We introduce Bidirectional Pr...

Jun-Bo Wang, Li-Dong Lu, Zhuo-Qun Li et al. · 0 citations