用大模型融合会议记录与补充材料,生成更相关、个性化的内容摘要
Tell me what I need to know: Exploring LLM-based (Personalized) Abstractive Multi-Source Meeting Summarization
- 三阶段流程:定位需补充信息处,从资料中提取并注入内容,再生成摘要
- 相比单源摘要,相关性提升约9%,内容丰富度更高,个性化使信息量增10%
- 支持边缘设备运行,适用于对话系统、任务规划等需资源增强的场景
会议摘要在数字通信中至关重要,但现有方法在识别关键信息和理解上下文方面仍存在不足。以往结合演示文稿等补充材料的方法受限于模型上下文长度,且难以处理多源信息中的相关性判断与内容对齐。本文提出一种三阶段大语言模型框架:首先识别会议转录中需要额外上下文的段落,其次从补充材料中推断相关信息并插入原文,最后基于增强后的转录生成摘要。该方法显著提升模型理解能力,使摘要相关性提高约9%,内容更丰富;引入个性化协议,通过提取参会者特征定制摘要,信息量提升约10%。研究还分析了四种主流模型家族在性能与成本间的权衡,包含可在边缘设备运行的方案。该方法可拓展至依赖外部资源与个性化的复杂生成任务,如对话系统与行动规划。
原文摘要 · Abstract (English)
Meeting summarization is crucial in digital communication, but existing solutions struggle with salience identification to generate personalized, workable summaries, and context understanding to fully comprehend the meetings' content. Previous attempts to address these issues by considering related supplementary resources (e.g., presentation slides) alongside transcripts are hindered by models' limited context sizes and handling the additional complexities of the multi-source tasks, such as identifying relevant information in additional files and seamlessly aligning it with the meeting content. This work explores multi-source meeting summarization considering supplementary materials through a three-stage large language model approach: identifying transcript passages needing additional context, inferring relevant details from supplementary materials and inserting them into the transcript, and generating a summary from this enriched transcript. Our multi-source approach enhances model understanding, increasing summary relevance by ~9% and producing more content-rich outputs. We introduce a personalization protocol that extracts participant characteristics and tailors summaries accordingly, improving informativeness by ~10%. This work further provides insights on performance-cost trade-offs across four leading model families, including edge-device capable options. Our approach can be extended to similar complex generative tasks benefitting from additional resources and personalization, such as dialogue systems and action planning.
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