S. Dasgupta

BoundaryMORPH: Budgeted Reranking via Active Set Selection for Diffuse Retrieval

Open-ended queries in modern Retrieval-Augmented Generation (RAG) are increasingly"diffuse,"requiring a large set of documents to be assembled into a finite LLM context window. To ensure retrieval quality, systems use fast dual-encoders and more expensive cross-encoders (CEs) to score candidates. However, the CE budget...