FactckBrClassification

Classify the veracity of a native Brazilian-Portuguese claim fact-checked by Brazilian agencies (Lupa, Publica, Aos Fatos), into 3 classes: falso, impreciso, verdadeiro. The input is the claim text only (not the fact-check title, which would leak the verdict). News / fact-checking domain; heavily imbalanced toward falso.

Part of MTEB(por) — the native Brazilian-Portuguese MTEB sub-benchmark. Task type: Classification · Language: Brazilian Portuguese (mined from real-world sources) · Domains: News, Social, Written.

Dataset structure

• default — columns: text, label

Source

https://github.com/jghm-f/FACTCK.BR

License

apache-2.0

Citation

@inproceedings{moreno2019factckbr,
    title     = {{FACTCK.BR}: a new dataset to study fake news},
    author    = {Moreno, Jo{\~a}o and Bressan, Giovanni},
    booktitle = {Proceedings of the 25th Brazillian Symposium on Multimedia and the Web (WebMedia)},
    year      = {2019},
    doi       = {10.1145/3323503.3361698},
    url       = {https://doi.org/10.1145/3323503.3361698},
}

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Repackaged for MTEB(por); pinned by commit SHA in the task for reproducibility.