From 118 papers on this topic published since 2021, kept out of the 384 most relevant results of our searches on OpenAlex. 1 preprint counted once with its published version. Relevance was checked for the 120 closest papers only.

This is a sample of the field, not a census: a broad topic has many more papers than a map reads. Narrow the topic or edit the searches to map one part of it well.

The 4 searches run on OpenAlex · An overview of the field
  • retrieval-augmented generation hallucination reduction — OpenAlex finds 17534 papers
  • grounded generation factuality evaluation — OpenAlex finds 78073 papers
  • knowledge retrieval factual question answering — OpenAlex finds 43962 papers
  • RAG verification and hallucination mitigation — OpenAlex finds 13701 papers

The landscape

The retrieval-quality approach focuses on improving evidence selection and grounding within RAG, whereas the architecture approach examines the broader design, efficiency, and knowledge-integration choices of RAG systems. The combined-validation approach treats retrieval as one component of a wider hallucination-detection and mitigation toolkit, overlapping with RAG-specific work on confidence and verification. The task-specific approach brings these concerns to particular outputs, domains, and query settings, although its mostly title-only records provide limited detail about methods and results.

People

Ordered by the papers of the map they sign, counting more those they sign first, last or as corresponding author. Author order says who did what in many fields, not who leads a team; it is not used in alphabetical author lists, nor after the first fifteen authors of a large collaboration.

Institutions

These are publication affiliations, not identified research teams. A national organization such as CNRS can include several independent laboratories.

Ordered by the papers one of their authors signs first, last or as corresponding author, then by their share of the papers: a paper signed by four institutions counts a quarter for each, so a large collaboration does not make each of its members look central.

Approaches

The papers are grouped by the similarity of their titles and abstracts; an AI names each group from its papers. A paper is in one group only.

Papers

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From the paper metadata of OpenAlex, which can be incomplete (affiliations, homonyms). Check before contacting anyone.