BookAsSumQA: An Evaluation Framework for Aspect-Based Book Summarization via Question Answering
Abstract
Aspect-based summarization aims to generate summaries that highlight specific aspects of a text, enabling more personalized and targeted summaries. However, its application to books remains unexplored due to the difficulty of constructing reference summaries for long text. To address this challenge, we propose BookAsSumQA, a QA-based evaluation framework for aspect-based book summarization. BookAsSumQA automatically generates aspect-specific QA pairs from a narrative knowledge graph to evaluate summary quality based on its question-answering performance. Our experiments using BookAsSumQA revealed that while LLM-based approaches showed higher accuracy on shorter texts, RAG-based methods become more effective as document length increases, making them more efficient and practical for aspect-based book summarization.
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Publication
The 14th International Joint Conference on Natural Language Processing and The 4th Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics
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Authors
Researcher at AISI/UEC
I am currently a researcher at the Japan AI Safety Institute under the supervision of Prof. Satoshi Sekine, and a research associate at the University of Electro-Communications under Satoshi Hara. I received my Master’s degree from the same university under the supervision of Kei Harada. My research focuses on hallucination detection in vision language models and narrative understanding, especially temporal discourse understanding. I am currently seeking Ph.D. positions.
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