Tree-of-Question: Structured Retrieval Framework for Korean Question Answering Systems. - Dongyub Lee; Younghun Jeong; Hwa-Yeon Kim; Hongyeon Yu; Seunghyun Han; Taesun Whang; Seungwoo Cho; Chanhee Lee; Gunsu Lee; Youngbum Kim (NAACL (Industry Track), 2024)