Rethinking the Hidden Risk of Reranking: Achieving Risk-aware Reranking with Information Gain for RAG with LLMs. - Zhizhao Liu; Zhihua Wen; Zhiliang Tian; Zhen Huang 006; Miaorong Zhu; Zimian Wei; Yifu Gao; Liang Ding 006; Dongsheng Li 001 (WWW, 2026)