CLEF CheckThat! 2025 Task 2 — French Claim Normalization

A CLEF CheckThat! 2025 Task 2 (french) dataset of 1,174 social media post and normalized claim pairs, collected by CLEF CheckThat! Lab organizers (2025). Each record contains social media post text containing a factual claim, normalized canonical claim statement. CLEF 2025 CheckThat! Task 2 (french) provides 1,174 pairs of social media posts and their normalized factual claims, enabling claim normalization and canonicalization research. Suitable for claim normalization, fact-checking automation, NLP text generation, multilingual claim extraction, social media fact verification.

#Claim normalization#Clef checkthat

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Analytics

Content metrics

1,174 records scored · min–maxmean ± 0.675 σ (the interquartile range if the values are roughly normal)mean

post lengthμ 1.4K ± 1.5K
min 63max 5K
claim lengthμ 81.314 ± 61.223
min 23max 744
11.0
Flesch–Kincaid grade
US school grade level
13.7
Automated readability index
Frequent terms
noneétécovidfairecontrevirusmondebienfranceprésidentpaysenfantsnoneauanssantéfoisjoursmasquephotopersonnesvientcoronavirusviefrançaisafriquetempsgouvernementjourcancer000casrienrdcmortvaccinavezjamaisaujourdtheloitraitementfamillechinoisafricainsmontrehommemaliarméeaucun
Topic clusters

Topic 0

macron
une
président
vous
que
arnold
statue
quand

Topic 1

cancer
vous
les
fruit
cola
une
votre
des

Topic 2

vaccin
vaccination
les
pas
que
des
qui
pour

Topic 3

rdc
congo
lac
des
rwandais
les
plus
pour

Topic 4

trump
les
projet
vous
pour
qui
des
états

Topic 5

virus
coronavirus
des
les
une
est
pas
que

Topic 6

photo
une
elle
reine
cette
fleuve
puissant
des

Topic 7

euro
français
par
conducteur
retraite
pour
monnaie
pièce

Topic 8

leur
mais
les
qui
moi
pas
que
famille

Topic 9

russe
russie
guerre
satan
des
missile
avion
ver

Topic 10

enfant
vous
parent
une
pour
des
les
que

Topic 11

esclave
était
les
leur
elle
notre
dans
histoire
Show all 16 topics

Topic 12

tshisekedi
kabila
président
politique
félix
république
rdc
congo

Topic 13

égypte
football
ballon
joueur
coupe
club
des
match

Topic 14

que
françois
fake
notre
qui
les
news
par

Topic 15

mali
maroc
malienne
malien
française
france
bébés
neuf
Top hashtags
#covid1937
#urgent37
#coronavirus33
#france27
#rdc27
#dictature21
#macron18
#vaccin15
#covid12
#1459
#crate_challenge9
#lequatriemepouvoir9
#mali9
#miel9
#rdc_société9
#tchad9
#abidjan6
#afrique6
#avc6
#belgique6
Top emoji
🇬249
😭216
🇪201
🔴198
🇨189
🍕165
😂165
🇷162
👇162
🚨135
🙏132
👏129
🔥129
🤣123
😱120

Computed over the full corpus.

Record

Catalog key
checkthat-2025-task2-french
Authors
Nakov, Preslav; Barrón-Cedeño, Alberto; Da San Martino, Giovanni; CheckThat! Lab Organizers
Year
2025
Source paper
CLEF 2025 CheckThat! Lab Task 2: Claim Normalization
DOI / arXiv
10.1007/978-3-031-88720-8_68
License
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 (CC BY-NC-SA 4.0) (CC-BY-NC-SA-4.0)
Records
1,174
Languages
fr
Collected
2025 (2020s)
Tasks
Claim normalization inferred
Region
Europe (inferred: from the language of the data)

Provenance

Originally published at
https://gitlab.com/checkthat_lab/clef2025-checkthat-lab link checked
Hosted copy
Mirrored on echo.directory on 2026-10-02, 2.1 MB across 1 files. Checksums in MANIFEST.json.

How to cite

BibTeX

@misc{echo2026,
  title  = {ECHO: Exploratory Compendium of Humanity Online},
  author = {Switzer, Braden and Zafarani, Reza},
  year   = {2026},
  url    = {https://echo.directory},
  note   = {Syracuse University}
}

@inproceedings{checkthat2025task2,
  title     = {CLEF 2025 {CheckThat!} Lab Task 2: Claim Normalization},
  author    = {Nakov, Preslav and others},
  booktitle = {CLEF 2025 Working Notes},
  year      = {2025}
}

APA

Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory

Nakov, P., Barrón-Cedeño, A., Da San Martino, G., & CheckThat! Lab Organizers (2025). CLEF CheckThat! 2025 Task 2 — French Claim Normalization [Data set]. https://doi.org/10.1007/978-3-031-88720-8_68

MLA

Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.

Nakov, Preslav, et al. CLEF CheckThat! 2025 Task 2 — French Claim Normalization. 2025, doi.org/10.1007/978-3-031-88720-8_68.

BibTeX · RIS · CSL-JSON

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