Pith Number

pith:SN4BMBEM

pith:2026:SN4BMBEM3RH3Q2JOZGVN4BFW4X

not attested not anchored not stored refs pending

NaviRAG: Towards Active Knowledge Navigation for Retrieval-Augmented Generation

2), (2) Nanjing University, (3) Northeastern University), Dingjun Wu (1), Jihao Dai (1, Maosong Sun (1) ((1) Tsinghua University, Yukun Yan (1), Yuxuan Chen (1), Zhenghao Liu (3), Zheni Zeng (2)

NaviRAG replaces flat segment retrieval in RAG with an LLM agent that actively navigates a document hierarchy from coarse topics to fine details.

arxiv:2604.12766 v2 · 2026-04-14 · cs.CL

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\usepackage{pith}
\pithnumber{SN4BMBEM3RH3Q2JOZGVN4BFW4X}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Extensive experiments on long-document QA benchmarks show that NaviRAG consistently improves both retrieval recall and end-to-end answer performance over conventional RAG baselines.

C2weakest assumption

That automatically structuring documents into a hierarchy will preserve accurate semantic relationships across granularity levels and that an LLM agent can reliably identify information gaps and select the appropriate retrieval level without introducing new errors.

C3one line summary

NaviRAG improves RAG performance on long-document QA by structuring knowledge hierarchically and deploying an LLM agent for iterative, multi-granularity retrieval.

Receipt and verification

First computed	2026-05-20T00:03:11.331070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

937816048cdc4fb8692ec9aade04b6e5f582f410cabde5de54fab3c79bbdd1ef

Aliases

arxiv: 2604.12766 · arxiv_version: 2604.12766v2 · doi: 10.48550/arxiv.2604.12766 · pith_short_12: SN4BMBEM3RH3 · pith_short_16: SN4BMBEM3RH3Q2JO · pith_short_8: SN4BMBEM

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SN4BMBEM3RH3Q2JOZGVN4BFW4X \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 937816048cdc4fb8692ec9aade04b6e5f582f410cabde5de54fab3c79bbdd1ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9836ba15faa0133cf36507ca74a286834bf9b98cbe3137682556d4030d12d4f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-04-14T14:07:01Z",
    "title_canon_sha256": "1e8adef529a57713d880a3f23bafe667073a2fbf431c1894fe3b542fb7795016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.12766",
    "kind": "arxiv",
    "version": 2
  }
}