OpenSI-SI/OpenSI-0.3B-Seed-5Btok-data
⚠️ 已知缺陷:18.3% 的训练数据没有文档分隔符 本数据集的 59 个分片(561,628,432 token)内部完全没有 EOS 分隔符, 整片维基百科文本被连续拼接在一起。 后果:训练时模型在这些位置学到的是「上一篇文章的结尾后面接着一篇全新文章 的开头」——即跨文档污染,且该来源上没有任何停止信号。 受影响分片 59 / 115(57 个维基分片 + 2 个注释分片) 受影响 token 561,628,432(占 train 的 17.65%) 证据 全片 id==2 计数为 0;shard_00000.bin 头 9,592 token 与源 jsonl 首行分词结果逐位 100% 一致 成因 预训练语料走 prep_shards.py(已修:文档间插 EOS)。10-05 新增的维基分片由另一条路径生成,未复用该逻辑,把已修过的缺陷重新引入 发现时间 2026-10-08 打包时核实 未受影响:train/opensi-train-000*.bin(53 个,2,601,279… See the full description on the dataset page: https://huggingface.co/datasets/OpenSI-SI/OpenSI-0.3B-Seed-5Btok-data.
| Author / organization | OpenSI-SI |
|---|---|
| License (as declared) | cc-by-sa-4.0 |
| Downloads | 466 (as reported by Hugging Face) |
| Likes | 0 |
| Created | 8 October 2026 |
| Last updated at source | 9 October 2026 |
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