CoRAG: Reranker and Generator as Peer Decision-Makers

A new framework called Cooperative Retrieval-Augmented Generation (CoRAG) redefines the relationship between reranker and generator in RAG systems. Instead of the traditional asymmetric dependency where generation quality hinges on reranking results, CoRAG treats both components as peer decision-makers jointly optimized toward a shared task objective. This cooperative approach encourages the reranker and generator to work in concert, improving document reranking and generation for better final responses. Experimental results show good generalization and improved generation stability.