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arxiv_cs_cl · Nov 12, 2026 · paper
Source brief
Parsed, Plausible, Wrong: Output Format Controls Silent Errors in Small-Model Semantic Parsing
arxiv.orgNov 12, 2026
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In brief
A small fine-tuned parser that emits a well-formed but wrong tree fails silently: nothing downstream can tell. We ask whether the output format, a free design choice, controls how often this happens. On the PIZZA ordering benchmark we fine-tune two sub-billion models (Qwen3.5-0.8