Pith Number

pith:QGX67E2P

pith:2026:QGX67E2PZKBZW3VIO7CXPJO4WN

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Dynamic Ranked List Truncation for Reranking Pipelines via LLM-generated Reference-Documents

Debasis Ganguly, Nilanjan Sinhababu, Pabitra Mitra, Soumedhik Bharati

LLM-generated reference documents serve as pivots to dynamically truncate ranked lists and accelerate listwise reranking.

arxiv:2604.09492 v2 · 2026-04-10 · cs.IR

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\usepackage{pith}
\pithnumber{QGX67E2PZKBZW3VIO7CXPJO4WN}

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Record completeness

1 Bitcoin timestamp

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

Experiments on TREC Deep Learning benchmarks show that our approach outperforms existing RLT-based approaches. In-domain and out-of-domain benchmarks demonstrate that our proposed methods accelerate LLM-based listwise reranking by up to 66% compared to existing approaches.

C2weakest assumption

LLMs can be used to generate reference documents that act as a reliable pivot between relevant and non-relevant documents in a ranked list, based on the equivalence to relevance judgment.

C3one line summary

LLM-generated reference documents enable dynamic ranked list truncation and adaptive batching for listwise reranking, outperforming prior RLT methods and accelerating processing by up to 66% on TREC benchmarks.

Receipt and verification

First computed	2026-05-29T01:05:09.184570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81afef934fca839b6ea877c577a5dcb34e2b5c17532bc51f9a92aff9796704dc

Aliases

arxiv: 2604.09492 · arxiv_version: 2604.09492v2 · doi: 10.48550/arxiv.2604.09492 · pith_short_12: QGX67E2PZKBZ · pith_short_16: QGX67E2PZKBZW3VI · pith_short_8: QGX67E2P

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QGX67E2PZKBZW3VIO7CXPJO4WN \
  | 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: 81afef934fca839b6ea877c577a5dcb34e2b5c17532bc51f9a92aff9796704dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9a49c3d00c289976781603545460c904182e5ba5bba75708e5dd155b0bc3a54",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2026-04-10T16:59:54Z",
    "title_canon_sha256": "cbc28e6ec8a4d41d3ab4284c1f85071fb466865df675da2fa62d7302e782a3d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.09492",
    "kind": "arxiv",
    "version": 2
  }
}