Pith Number

pith:ZSMB6XCA

pith:2026:ZSMB6XCA7TCO5NFJTUNXA6C2EL

not attested not anchored not stored refs pending

UHR-Net: An Uncertainty-Aware Hypergraph Refinement Network for Medical Image Segmentation

Jinghao Shi, Kun Sun, Shuokun Cheng

UHR-Net refines lesion boundaries by splitting hyperedge prototypes according to an entropy uncertainty map.

arxiv:2604.28095 v2 · 2026-04-30 · cs.CV

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\usepackage{pith}
\pithnumber{ZSMB6XCA7TCO5NFJTUNXA6C2EL}

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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

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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

By splitting hyperedge prototypes into foreground and background groups, UGHR decouples higher-order interactions and improves refinement in ambiguous regions. Experiments on five public benchmarks demonstrate consistent gains over strong baselines.

C2weakest assumption

That an entropy-based uncertainty map derived from a coarse probability map reliably identifies ambiguous regions and that guiding hypergraph refinement with it will not propagate errors from the initial coarse prediction.

C3one line summary

UHR-Net improves medical lesion segmentation accuracy by using uncertainty-guided hypergraph refinement and instance contrastive pretraining to better handle ambiguous boundaries and small lesions.

Receipt and verification

First computed	2026-06-10T01:10:02.421555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc981f5c40fcc4eeb4a99d1b70785a22d4a9525bd1464db28afa0b33105ff204

Aliases

arxiv: 2604.28095 · arxiv_version: 2604.28095v2 · doi: 10.48550/arxiv.2604.28095 · pith_short_12: ZSMB6XCA7TCO · pith_short_16: ZSMB6XCA7TCO5NFJ · pith_short_8: ZSMB6XCA

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/ZSMB6XCA7TCO5NFJTUNXA6C2EL \
  | 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: cc981f5c40fcc4eeb4a99d1b70785a22d4a9525bd1464db28afa0b33105ff204

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b98b686dd4f04c0469496b212ea85d37810becd5f1b2a5d2bd3d0a76bde7681d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-04-30T16:38:51Z",
    "title_canon_sha256": "c0300641537f2113b1b74b5af030d46037622881b6b1c36883e4fabd493930bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.28095",
    "kind": "arxiv",
    "version": 2
  }
}