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Multilingual Fact-Checked Claim Retrieval

Fact-checked claim retrieval task requiring annotators to assess whether a fact-check article matches a given claim, supporting multilingual evaluation. Based on SemEval-2025 Task 7.

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Konfigurationsdateiconfig.yaml

# Multilingual Fact-Checked Claim Retrieval
# Based on Nakov et al., SemEval 2025
# Paper: https://aclanthology.org/volumes/2025.semeval-1/
# Dataset: https://github.com/SemEval/semeval-2025-task7
#
# This task asks annotators to assess whether a previously fact-checked
# article matches a given claim. Annotators judge the degree of match
# and provide justification for their decision.

annotation_task_name: "Multilingual Fact-Checked Claim Retrieval"
task_dir: "."

data_files:
  - sample-data.json

item_properties:
  id_key: "id"
  text_key: "text"

output_annotation_dir: "annotation_output/"
output_annotation_format: "json"

port: 8000
server_name: localhost

annotation_schemes:
  - annotation_type: radio
    name: match_judgment
    description: "How well does the fact-check match the claim?"
    labels:
      - "Exact Match"
      - "Partial Match"
      - "Related But Different"
      - "Not Related"
    keyboard_shortcuts:
      "Exact Match": "1"
      "Partial Match": "2"
      "Related But Different": "3"
      "Not Related": "4"
    tooltips:
      "Exact Match": "The fact-check directly addresses the exact same claim"
      "Partial Match": "The fact-check addresses part of the claim or a closely related variant"
      "Related But Different": "The fact-check covers the same topic but a different specific claim"
      "Not Related": "The fact-check is about a different topic or claim entirely"

  - annotation_type: text
    name: justification
    description: "Provide a brief justification for your match judgment."

annotation_instructions: |
  You will be shown a claim and a fact-check article. Your task is to:
  1. Read the claim carefully.
  2. Read the fact-check text and consider its content.
  3. Judge how well the fact-check matches the claim using the four categories.
  4. Provide a brief justification explaining your reasoning.

html_layout: |
  <div style="padding: 15px; max-width: 800px; margin: auto;">
    <div style="background: #f0f9ff; border: 1px solid #bae6fd; border-radius: 8px; padding: 16px; margin-bottom: 16px;">
      <strong style="color: #0369a1;">Claim:</strong>
      <p style="font-size: 16px; line-height: 1.7; margin: 8px 0 0 0;">{{text}}</p>
    </div>
    <div style="background: #fefce8; border: 1px solid #fde68a; border-radius: 8px; padding: 16px; margin-bottom: 16px;">
      <strong style="color: #a16207;">Fact-Check:</strong>
      <p style="font-size: 15px; line-height: 1.6; margin: 8px 0 0 0;">{{fact_check}}</p>
    </div>
    <div style="background: #f0fdf4; border: 1px solid #bbf7d0; border-radius: 8px; padding: 12px;">
      <strong style="color: #166534;">Source Language:</strong> <span>{{source_language}}</span>
    </div>
  </div>

allow_all_users: true
instances_per_annotator: 50
annotation_per_instance: 2
allow_skip: true
skip_reason_required: false

Beispieldatensample-data.json

[
  {
    "id": "factclaim_001",
    "text": "COVID-19 vaccines contain microchips that track people's movements.",
    "fact_check": "Multiple fact-checking organizations have verified that COVID-19 vaccines do not contain microchips. The vaccines contain mRNA or viral vector components, lipids, salts, and sugars. No tracking devices are present in any approved vaccine.",
    "source_language": "English"
  },
  {
    "id": "factclaim_002",
    "text": "The Great Wall of China is visible from space with the naked eye.",
    "fact_check": "NASA astronauts have confirmed that the Great Wall of China is not visible from low Earth orbit without aid. The wall is narrow and blends with the natural landscape, making it indistinguishable from orbit.",
    "source_language": "English"
  }
]

// ... and 8 more items

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Schnellstart:

git clone https://github.com/davidjurgens/potato-showcase.git
cd potato-showcase/semeval/2025/task07-factchecked-claim-retrieval
potato start config.yaml

Details

Annotationstypen

radiotext

Bereich

SemEvalNLPFact-CheckingMultilingual

Anwendungsfälle

Claim VerificationInformation RetrievalMisinformation Detection

Schlagwörter

semevalsemeval-2025shared-taskfact-checkingclaim-retrievalmultilingual

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