Author

Xun Xu

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#artificial intelligence Preprint Sep 2026

OmniHarness: Harnessing Generalizable Visual Generation via Symbolic Policy Learning

OmniHarness is introduced, a framework for generalizable visual generation via symbolic policy learning that abstracts verified executions into symbolic policies for visual generation task families, capturing shared procedures and applicability conditions while removing instance-specific inputs.

Xun Xu, Jin-Xiu Liu, Zhang-Bo Qiao et al. · 1 citation

#artificial intelligence Preprint Sep 2026

Who Teaches Which Token? Verifier-Gated Multi-Expert On-Policy Distillation for Scientific Reasoning

Verifier-Gated Multi-Expert On-Policy Distillation (VG-OPD) attains the best overall performance on seven benchmarks for 4B and 8B students, ranking first on five at both scales, with the largest gains on knowledge-intensive scientific reasoning tasks.

Xun Xu, Zai-Xi Zhang · 3 citations · ⚡1