Pith Number

pith:UZN2XB4G

pith:2019:UZN2XB4G53357RHZULXQZRYUOK

not attested not anchored not stored refs pending

A meta-learning recommender system for hyperparameter tuning: predicting when tuning improves SVM classifiers

Andr\'e Carlos Ponce de Leon Ferreira de Carvalho, Andr\'e Luis Debiaso Rossi, Edesio Alcoba\c{c}a, Joaquin Vanschoren, Rafael Gomes Mantovani

arxiv:1906.01684 v2 · 2019-06-04 · cs.LG · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UZN2XB4G53357RHZULXQZRYUOK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Receipt and verification

First computed	2026-05-17T23:43:32.511900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a65bab8786eef7dfc4f9a2ef0cc714729dfc54a36a214763369e61a76fe654c2

Aliases

arxiv: 1906.01684 · arxiv_version: 1906.01684v2 · doi: 10.48550/arxiv.1906.01684 · pith_short_12: UZN2XB4G5335 · pith_short_16: UZN2XB4G53357RHZ · pith_short_8: UZN2XB4G

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/UZN2XB4G53357RHZULXQZRYUOK \
  | 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: a65bab8786eef7dfc4f9a2ef0cc714729dfc54a36a214763369e61a76fe654c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fed3668cbad4ed0846b1ded4d2b5ec1de62b5328e905332ceafba357ac7691c8",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-06-04T19:03:07Z",
    "title_canon_sha256": "60a93bb5d0141559646516fd3b9191431d731ebebaa2df33900a3ccbeb2f4fe2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.01684",
    "kind": "arxiv",
    "version": 2
  }
}