BLEnD: A Benchmark for LLMs on Everyday Knowledge in Diverse Cultures and Languages
Written for the Research library (claude-opus-5-5) from the paper text. Original — arxiv.org/pdf/2406.09948
Summary
Large language models often know little about ordinary daily life outside a few well-documented cultures. Facts like what people eat on birthdays or which sports pupils play rarely appear in web sources such as Wikipedia. Earlier cultural benchmarks were also mostly limited to one language or built from scraped online data. BLEnD addresses this with a hand-built benchmark. Native-speaker annotators from 16 countries/regions wrote and answered 500 everyday questions covering food, sports, family, education, holidays/leisure and work-life. The questions were then translated into 13 languages, including low-resource Amharic, Assamese, Azerbaijani, Hausa and Sundanese. Each item is tested in two ways: as a short-answer question, and as a multiple-choice question whose wrong options are answers given by other regions. Across 16 LLMs, accuracy is high for US and UK culture but drops sharply for underrepresented cultures. The prompt language also matters. Local languages help for well-resourced cultures, while English works better for low-resource ones. Because every culture gets the same questions, results can be compared directly, and the method could be reused for languages such as Ukrainian.
Key points
- The dataset has about 52.6k question-answer pairs: 15k short-answer and 37.6k multiple-choice. Each region has 500 base questions, usually answered by about five annotators. The data is public on GitHub (nlee0212/BLEnD).
- It includes two regions that share a language but differ culturally: South Korea and North Korea, both in Korean. This lets the authors separate cultural bias from language effects.
- On short-answer questions, the average score across models was 79.22% for US culture asked in English, but only 12.18% for Ethiopian culture asked in Amharic. GPT-4, the best model, showed gaps of up to 57.34% between regions.
- Common errors for underrepresented regions were hallucinated entities, refusals, and answers from a neighbouring culture's point of view. For North Korea, 18.33% of GPT-4 responses used vocabulary found only in South Korea.
- Limitations: the annotator pool is small and mostly made up of academics, and short-answer scoring is hard to automate despite lemmatizers/stemmers.
Cited by
- CultureLLM: Incorporating Cultural Differences into Large Language Models
- Global MMLU: Understanding and Addressing Cultural and Linguistic Biases in Multilingual Evaluation
Cite
@misc{myung2024blend,
title = {{BLEnD: A Benchmark for LLMs on Everyday Knowledge in Diverse Cultures and Languages}},
author = {Myung, Junho and Lee, Nayeon and Zhou, Yi and Jin, Jiho and Putri, Rifki Afina and Antypas, Dimosthenis and Borkakoty, Hsuvas and Kim, Eunsu and Perez-Almendros, Carla and Ayele, Abinew Ali and Gutierrez-Basulto, Victor and Ibanez-Garcia, Yazmin and Lee, Hwaran and Muhammad, Shamsuddeen Hassan and Park, Kiwoong and Rzayev, Anar Sabuhi and White, Nina and Yimam, Seid Muhie and Pilehvar, Mohammad Taher and Ousidhoum, Nedjma and Camacho-Collados, Jose and Oh, Alice},
year = {2024},
doi = {10.48550/arxiv.2406.09948},
eprint = {2406.09948},
archivePrefix = {arXiv},
url = {https://doi.org/10.48550/arxiv.2406.09948}
}References
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