Pith Number

pith:4LONVH44

pith:2024:4LONVH44IQ2QQX6S6OCYNNRHAX

not attested not anchored not stored refs pending

A Survey on Neural Topic Models: Methods, Applications, and Challenges

Anh Tuan Luu, Thong Nguyen, Xiaobao Wu

arxiv:2401.15351 v2 · 2024-01-27 · cs.CL · cs.AI · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4LONVH44IQ2QQX6S6OCYNNRHAX}

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.

Cited by

1 paper in Pith

Constrained Non-negative Matrix Factorization for Guided Topic Modeling of Minority Topics

Receipt and verification

First computed	2026-07-05T08:35:41.171845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2dcda9f9c4435085fd2f38586b62705e4e2dbb1e8bd2fd46c3cacc702d15767

Aliases

arxiv: 2401.15351 · arxiv_version: 2401.15351v2 · doi: 10.48550/arxiv.2401.15351 · pith_short_12: 4LONVH44IQ2Q · pith_short_16: 4LONVH44IQ2QQX6S · pith_short_8: 4LONVH44

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/4LONVH44IQ2QQX6S6OCYNNRHAX \
  | 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: e2dcda9f9c4435085fd2f38586b62705e4e2dbb1e8bd2fd46c3cacc702d15767

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3d59df0340be71310ec0ad995f33d7f30a5a49792f3dcb728c27e1baf74679f",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2024-01-27T08:52:19Z",
    "title_canon_sha256": "d4a72dca4c0b00d6fb2f11d103f8b4b8958c185449590f28119619557c3e8ba9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2401.15351",
    "kind": "arxiv",
    "version": 2
  }
}