IBM Researchers Introduce STAIR Retriever for RAG

Elvis Saravia posted about a paper from Vineet Kumar and IBM colleagues on STAIR, a structure-aware information retriever. The work targets common RAG problems where chunking documents by length discards existing hierarchy. It proposes encoding global structure via table of contents instead. The linked source describes STAIR as a generative retriever that stores and addresses a corpus through its table of contents, along with a novel dataset for document structure augmentation.