用知识图谱让表格生成文本既有事实又带主观解读。
Ta-G-T: Subjectivity Capture in Table to Text Generation via RDF Graphs
- 用RDF三元组提取表格信息,分三步生成兼具事实与主观的文本。
- 小模型效果接近GPT-3.5,优于Mistral-7B和Llama-2多个指标。
- 适合需要可解释性与观点表达的自动报告、数据分析场景。
在表格转文本生成中,现有方法多关注客观描述,对超越数值的主观解读研究不足。本文提出一种新流水线,通过中间表示实现客观与主观文本生成。三阶段流程包括:1)提取资源描述框架(RDF)三元组;2)聚合文本形成连贯叙事;3)注入主观性以丰富输出。利用RDF提升事实准确性并保持可解释性。相比GPT-3.5、Mistral-7B和Llama-2等大模型,本方法采用更小的微调T5模型,在多个指标上达到相近或更优表现。通过定量与定性分析验证了其在平衡事实正确性与主观解读方面的有效性。据我们所知,这是首个将中间表示结构化整合进表格转文本生成的系统性工作。
原文摘要 · Abstract (English)
In Table-to-Text (T2T) generation, existing approaches predominantly focus on providing objective descriptions of tabular data. However, generating text that incorporates subjectivity, where subjectivity refers to interpretations beyond raw numerical data, remains underexplored. To address this, we introduce a novel pipeline that leverages intermediate representations to generate both objective and subjective text from tables. Our three-stage pipeline consists of: 1) extraction of Resource Description Framework (RDF) triples, 2) aggregation of text into coherent narratives, and 3) infusion of subjectivity to enrich the generated text. By incorporating RDFs, our approach enhances factual accuracy while maintaining interpretability. Unlike large language models (LLMs) such as GPT-3.5, Mistral-7B, and Llama-2, our pipeline employs smaller, fine-tuned T5 models while achieving comparable performance to GPT-3.5 and outperforming Mistral-7B and Llama-2 in several metrics. We evaluate our approach through quantitative and qualitative analyses, demonstrating its effectiveness in balancing factual accuracy with subjective interpretation. To the best of our knowledge, this is the first work to propose a structured pipeline for T2T generation that integrates intermediate representations to enhance both factual correctness and subjectivity.
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