Pith Number

pith:4MJVZM4R

pith:2026:4MJVZM4R3Q77C7P7U42BUTBUSH

not attested not anchored not stored refs pending

iCoRe: An Iterative Correlation-Aware Retriever for Bug Reproduction Test Generation

Jialun Cao, Junyi Wang, Zhongxin Liu

An iterative retriever that tracks source-test differences, semantic-structural links, and generation feedback raises LLM success at producing bug reproduction tests.

arxiv:2604.19224 v2 · 2026-04-21 · cs.SE

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\usepackage{pith}
\pithnumber{4MJVZM4R3Q77C7P7U42BUTBUSH}

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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

Experimental results show that our method achieves a Fail-to-Pass rate of 42.0% and 52.8% respectively, representing 19.7%-31.7% relative improvements over existing retrieval methods.

C2weakest assumption

The three named correlations (source-test differentiation, semantic-structural relevance, retrieval-generation feedback) are the dominant factors limiting current retrievers and that an iterative loop will improve them without introducing new noise or instability in the LLM outputs.

C3one line summary

iCoRe improves Fail-to-Pass rates to 42.0% and 52.8% on two bug reproduction benchmarks by using correlation-aware iterative retrieval instead of standard semantic or BM25 methods.

Receipt and verification

First computed	2026-06-30T01:16:30.083384Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3135cb391dc3ff17dffa7341a4c3491dd749ef66c4839bf58b3d46ea9c7e2c8

Aliases

arxiv: 2604.19224 · arxiv_version: 2604.19224v2 · doi: 10.48550/arxiv.2604.19224 · pith_short_12: 4MJVZM4R3Q77 · pith_short_16: 4MJVZM4R3Q77C7P7 · pith_short_8: 4MJVZM4R

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/4MJVZM4R3Q77C7P7U42BUTBUSH \
  | 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: e3135cb391dc3ff17dffa7341a4c3491dd749ef66c4839bf58b3d46ea9c7e2c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ea115f1410d3f0ab1ac953833dcba5a1431a3bfc45bdeb5698cdff638042a33",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2026-04-21T08:26:30Z",
    "title_canon_sha256": "abb38a1066bf0bcf5027e3c21030c89b79b2a65220adb96c346f4593965acb74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.19224",
    "kind": "arxiv",
    "version": 2
  }
}