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Research questionHow can grammar-constrained decoding preserve syntactic validity without distorting an LLM’s output probabilities?Restricting each next-token choice to grammar-valid tokens can make structured outputs syntactically correct while changing their relative probabilities. That distortion may favor lower-quality code, formulas, markup, or other structured outputs.
AI
Code Generation & Program Synthesis
Inference Optimization
Natural Language Processing
Latest papersRecent research connected to this question, newest first.Grammar-Aligned DecodingApplies to LLM generation under a given grammar, including code, mathematical formulas, and well-formed markup. The reported evidence covers code-generation and structured-NLP tasks and evaluates output likelihood under the LLM’s distribution while enforcing grammatical validity.research paper · Sep 2, 2026
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