Pith Number

pith:XSDSW5KB

pith:2018:XSDSW5KBSPGEZ3LRHGELCS6Z75

not attested not anchored not stored refs pending

An Improved Text Sentiment Classification Model Using TF-IDF and Next Word Negation

Bijoyan Das, Sarit Chakraborty

arxiv:1806.06407 v1 · 2018-06-17 · cs.CL · 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{XSDSW5KBSPGEZ3LRHGELCS6Z75}

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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

From TF-IDF to Transformers: A Comparative and Ensemble Approach to Sentiment Classification

Receipt and verification

First computed	2026-05-18T00:13:02.569949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc872b754193cc4ced713988b14bd9ff55922ef278863733b1d6bbc9e200b16d

Aliases

arxiv: 1806.06407 · arxiv_version: 1806.06407v1 · doi: 10.48550/arxiv.1806.06407 · pith_short_12: XSDSW5KBSPGE · pith_short_16: XSDSW5KBSPGEZ3LR · pith_short_8: XSDSW5KB

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/XSDSW5KBSPGEZ3LRHGELCS6Z75 \
  | 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: bc872b754193cc4ced713988b14bd9ff55922ef278863733b1d6bbc9e200b16d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d898f3e825ea235b21f5818edd92fbe6a14d9c3ce1e8a1373f0e8d0e5d46598f",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-06-17T16:25:57Z",
    "title_canon_sha256": "776f860732c31313cba88c88743d02fc8394652fec21fe1d53e0517cfe4c8c8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06407",
    "kind": "arxiv",
    "version": 1
  }
}