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Pith Number

pith:NRTDYBX4

pith:2002:NRTDYBX4ETFBO3VJLVUWQ7G76H
not attested not anchored not stored refs pending

Thumbs up? Sentiment Classification using Machine Learning Techniques

Bo Pang, Lillian Lee, Shivakumar Vaithyanathan

arxiv:cs/0205070 v1 · 2002-05-28 · cs.CL · cs.LG

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{NRTDYBX4ETFBO3VJLVUWQ7G76H}

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

Receipt and verification
First computed 2026-07-04T14:24:17.984034Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

6c663c06fc24ca176ea95d69687cdff1ca9ccbe3277c73c0f481a222aa070bc2

Aliases

arxiv: cs/0205070 · arxiv_version: cs/0205070v1 · doi: 10.48550/arxiv.cs/0205070 · pith_short_12: NRTDYBX4ETFB · pith_short_16: NRTDYBX4ETFBO3VJ · pith_short_8: NRTDYBX4
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/NRTDYBX4ETFBO3VJLVUWQ7G76H \
  | 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: 6c663c06fc24ca176ea95d69687cdff1ca9ccbe3277c73c0f481a222aa070bc2
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "369c2c9b5d03f6b6641af496d9d078b3f8b622b32212d6e9271039a07db39a78",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "",
    "primary_cat": "cs.CL",
    "submitted_at": "2002-05-28T02:01:55Z",
    "title_canon_sha256": "d09848ccfd39a3ccaa4f598830cef9190ce5289cd0a3435dbd44bf2f6f7ba019"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0205070",
    "kind": "arxiv",
    "version": 1
  }
}