作者位次 #2/8ACL 2026Poster· Natural Language Processing
COSMOS : Connectivity-Oriented Submodular Maximization for Optimal Subgraph Retrieval
Boci Peng · Xiao Liu · Boren Hu · Yun Zhu · Xuanbo Fan · Yanwei Yue · Chunyu Yang · Yan Zhang
摘要
Retrieving coherent evidence subgraphs is critical for Knowledge Base Question Answering (KBQA). Existing paradigms often treat facts independently, rely on biased heuristics, or employ myopic search, failing to optimize collective subgraph utility. In this paper, we propose COSMOS ( C onnectivit...