Evaluating, Understanding, and Improving Constrained Text Generation for Large Language Models

• URL: http://arxiv.org/abs/2310.16343v2
• Date: Thu, 21 Mar 2024 08:29:35 GMT
• Title: Evaluating, Understanding, and Improving Constrained Text Generation for Large Language Models
• Authors: Xiang Chen, Xiaojun Wan,
• Abstract summary: This study investigates constrained text generation for large language models (LLMs) Our research mainly focuses on mainstream open-source LLMs, categorizing constraints into lexical, structural, and relation-based types. Results illuminate LLMs' capacity and deficiency to incorporate constraints and provide insights for future developments in constrained text generation.
• Score: 49.74036826946397
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Advancements in natural language generation (NLG) and large language models (LLMs) have led to proficient text generation in various tasks. However, integrating intricate constraints into neural text generation, due to LLMs' opacity, remains challenging. This study investigates constrained text generation for LLMs, where predefined constraints are applied during LLM's generation process. Our research mainly focuses on mainstream open-source LLMs, categorizing constraints into lexical, structural, and relation-based types. We also present various benchmarks to facilitate fair evaluation. The study addresses some key research questions, including evaluating, understanding and improving constrained text generation for LLMs. Results illuminate LLMs' capacity and deficiency to incorporate constraints and provide insights for future developments in constrained text generation. Codes and datasets will be released upon acceptance.

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