Pith Number

pith:7XVDKBIS

pith:2026:7XVDKBISHLGOFDTDRKDLIY2LSC

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Aligning Validation with Deployment in Spatial Prediction: Target-Weighted Cross-Validation

Alexander Brenning, Thomas Suesse

Target-weighted cross-validation reduces bias in spatial prediction performance estimates by aligning validation tasks with the full deployment domain.

arxiv:2603.29981 v3 · 2026-03-31 · cs.LG · stat.ML

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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

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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

weighted CV approaches substantially reduce this bias when validation tasks adequately cover the deployment-task space.

C2weakest assumption

That spatially meaningful task descriptors such as environmental covariates and prediction distance are sufficient to represent and cover the full deployment-task space for weighting purposes.

C3one line summary

Target-Weighted Cross-Validation reduces bias in spatial model performance estimates by weighting validation tasks to match the distribution of prediction tasks across the deployment domain.

Formal links

2 machine-checked theorem links

Cited by

1 paper in Pith

Moving beyond spatial and random cross-validation in environmental modelling: a call for prediction-domain adaptive evaluation

Receipt and verification

First computed	2026-05-22T02:04:40.599562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdea3505123acce28e638a86b4634b90a3edac010a92c4a79569157eac3e9eac

Aliases

arxiv: 2603.29981 · arxiv_version: 2603.29981v3 · doi: 10.48550/arxiv.2603.29981 · pith_short_12: 7XVDKBISHLGO · pith_short_16: 7XVDKBISHLGOFDTD · pith_short_8: 7XVDKBIS

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/7XVDKBISHLGOFDTDRKDLIY2LSC \
  | 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: fdea3505123acce28e638a86b4634b90a3edac010a92c4a79569157eac3e9eac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2b2b3850c5aca337c5c0cc1a2545ddcd479b822da4a8085bcdd4287a97896c2",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-03-31T16:44:07Z",
    "title_canon_sha256": "e68a6672ad0582c2858bcd7591ffbcd95748cdc7cd44887b2ff602f0527f6590"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.29981",
    "kind": "arxiv",
    "version": 3
  }
}