训练时对文本做了规范化(还原 HTML 转义、链接替换为 http),推理时建议做同样的处理, 见项目中的 triage/preprocess.py。 - 数据:Kaggle NLP with Disaster Tweets 的 train.csv,其中 id ≤ 8696 的 6090 条用于训练,其余 1523 条作为验证集。 - 超参数:BERT 学习率 2e-5,ModernBERT 学习率 5e-5;2 个 epoch;batch size 32;maxseqlength 128; weight decay 0.01;warmup 0.1;bf16;随机种子 42。 同一配置 3 个随机种子的 Macro-F1:BERT 81.63 ± 0.11,ModernBERT 81.70 ± 1.11,两者的差异在种子波动范围内。 - 仅支持英文;比喻性用法(如 "this mixtape is fire")仍可能误判。 - 两个模型都只在推文(≤ 82 token)上微调,ModernBERT 在长文本上的效果没有经过标注数据验证。 - 模型权重:CC BY-NC 4.0。基于 Kaggle 比赛数据训练,仅限非商业用途;使用时还需遵守该比赛规则中对数据的限制。 - 基础模型:bert-base-uncased、ModernBERT-base(均为 Apache-2.0)。
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