TY - JOUR T1 - LLM-based Extractive and Abstractive Korean Meeting Summarization with Topic Decomposition AU - Noh, Dongwon AU - Koh, Donghyeok AU - Kim, Hyun AU - Kim, D asol AU - Kim, T aehoon AU - Park, Cheoneum JO - Journal of KIISE, JOK PY - 2026 DA - 2026/1/14 DO - 10.5626/JOK.2026.53.1.22 KW - meeting summarization KW - topic decomposition KW - chain-of-thought KW - large language model AB - We propose a framework for summarizing meeting content based on specific topics using a large language model that combines extraction- and generation techniques. Each topic sencapsulates the central concept of the meeting, but its concise nature can complicate direct application during model inference. To overcome this challenge, we utilize a Chain-of-Thought (CoT) decomposition technique to interpret the topic and guide the extraction- and generation of summaries. Additionally, we employ an encoder with a long-context retriever to select meaningful sentences from extensive meeting content for topic summarization. Experimental results show that our extraction-generation framework achieves a ROUGE-1 score of 43.65, demonstrating its effectiveness in producing meeting summaries aligned with the specified topics.