Pith Number

pith:CPAYHQHB

pith:2025:CPAYHQHBZZF3VZSVM2KDBOWFUI

not attested not anchored not stored refs pending

Efficient Representations for High-Cardinality Categorical Variables in Machine Learning

Zixuan Liang

arxiv:2501.05646 v1 · 2025-01-10 · cs.LG · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPAYHQHBZZF3VZSVM2KDBOWFUI}

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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.

Cited by

1 paper in Pith

Evaluating Tabular Representation Learning for Network Intrusion Detection

Receipt and verification

First computed	2026-07-05T09:59:26.583300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13c183c0e1ce4bbae655669430bac5a23d4dcbe6c0b16363f532828bb2230b6b

Aliases

arxiv: 2501.05646 · arxiv_version: 2501.05646v1 · doi: 10.48550/arxiv.2501.05646 · pith_short_12: CPAYHQHBZZF3 · pith_short_16: CPAYHQHBZZF3VZSV · pith_short_8: CPAYHQHB

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/CPAYHQHBZZF3VZSVM2KDBOWFUI \
  | 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: 13c183c0e1ce4bbae655669430bac5a23d4dcbe6c0b16363f532828bb2230b6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21198e18323b3c98c6f9142ba5f1c5c83da7bbde7e7b6bc41e1b91fb0c78942a",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-01-10T01:25:01Z",
    "title_canon_sha256": "5ce163a473fad9ded964dd1a461f8f4a0ad39c2d1b0216ed65ae1cbbcc43416f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.05646",
    "kind": "arxiv",
    "version": 1
  }
}