Pith Number

pith:NHYP4NR6

pith:2026:NHYP4NR6FOCX2D2IWHZMIUIJHF

not attested not anchored not stored refs pending

Variational views for self-supervised learning in radio astronomy

Anna M. M. Scaife, Johnny Joseph Alphonse

A beta-VAE supplies generative views that improve self-supervised pre-training for radio galaxy morphology when combined with standard augmentations.

arxiv:2602.18923 v2 · 2026-02-21 · astro-ph.IM · astro-ph.GA

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\pithnumber{NHYP4NR6FOCX2D2IWHZMIUIJHF}

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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

Our experiments show that combining these generative views with standard image augmentations improves downstream classification performance.

C2weakest assumption

That the beta-VAE reconstructions supply non-redundant morphological variations that standard augmentations miss and that these variations remain useful when transferred to the downstream classifier.

C3one line summary

Beta-VAE reconstructions used as generative augmentations improve downstream radio galaxy classification when combined with standard image augmentations in self-supervised pre-training.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-21T02:04:59.484996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

69f0fe363e2b857d0f48b1f2c45109395fbb73b97b0e3e76a8ac7a3c18394d86

Aliases

arxiv: 2602.18923 · arxiv_version: 2602.18923v2 · doi: 10.48550/arxiv.2602.18923 · pith_short_12: NHYP4NR6FOCX · pith_short_16: NHYP4NR6FOCX2D2I · pith_short_8: NHYP4NR6

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NHYP4NR6FOCX2D2IWHZMIUIJHF \
  | 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: 69f0fe363e2b857d0f48b1f2c45109395fbb73b97b0e3e76a8ac7a3c18394d86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b85e3975caade79a48102983188e0966b10a48a423e9f3be315985b83f46293",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-02-21T18:29:31Z",
    "title_canon_sha256": "fc6a3947e00cec3f22a0bc305a0920e1bcb99beb12c5019bbe261fdd6a9c68a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.18923",
    "kind": "arxiv",
    "version": 2
  }
}