copa-lv

Latvian version of the COPA (Choice of Plausible Alternatives) dataset for commonsense causal reasoning.

The dataset is based on the original English COPA dataset and its Latvian translation introduced by Skadiņa et al. (2025). The original data was machine translated using Tilde MT and partially manually post-edited.

This version completes manual post-editing for all samples and provides a consistent structured format.

Data Format

Each example contains:

• context: premise sentence
• question: "cēlonis" (cause) or "sekas" (effect)
• choices: two answer options
• label: correct answer index (0 or 1)
• id: unique identifier

Splits

• Train: 400
• Validation: 100
• Test: 500

Citation

@inproceedings{znotins-2026-pretraining,
    title = "Pretraining and Benchmarking Modern Encoders for {L}atvian",
    author = "Znotins, Arturs",
    booktitle = "Proceedings of the Second Workshop on Language Models for Low-Resource Languages ({L}o{R}es{LM} 2026)",
    month = mar,
    year = "2026",
    address = "Rabat, Morocco",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2026.loreslm-1.40/",
    doi = "10.18653/v1/2026.loreslm-1.40",
    pages = "461--470",
    ISBN = "979-8-89176-377-7"
}

@inproceedings{skadina-etal-2025-first,
    title = "First Steps in Benchmarking {L}atvian in Large Language Models",
    author = "Skadina, Inguna  and
      Bakanovs, Bruno  and
      Dar{\c{g}}is, Roberts",
    booktitle = "Proceedings of the Third Workshop on Resources and Representations for Under-Resourced Languages and Domains (RESOURCEFUL-2025)",
    month = mar,
    year = "2025",
    address = "Tallinn, Estonia",
    publisher = "University of Tartu Library, Estonia",
    url = "https://aclanthology.org/2025.resourceful-1.22/",
    pages = "86--95",
    ISBN = "978-9908-53-121-2"
}

@inproceedings{roemmele2011choice,
  title={Choice of Plausible Alternatives: An Evaluation of Commonsense Causal Reasoning.},
  author={Roemmele, Melissa and Bejan, Cosmin Adrian and Gordon, Andrew S},
  booktitle={AAAI spring symposium: logical formalizations of commonsense reasoning},
  pages={90--95},
  year={2011}
}