| """Single-source baselines of the same size, for comparison with the mix. |
| |
| python baselines.py 10M -> out/base_tinystories_10M, out/base_fineweb_edu_10M |
| Light cleaning only (ftfy + whitespace), no mix, no complexity or dedup filters: |
| this is what someone would get by just taking the dataset. |
| """ |
| import os |
| import sys |
| from pathlib import Path |
|
|
| ROOT = Path(__file__).resolve().parent.parent |
| _env = ROOT / ".env" |
| if _env.exists(): |
| for _l in _env.read_text(encoding="utf-8").splitlines(): |
| if "=" in _l and not _l.lstrip().startswith("#"): |
| _k, _v = _l.split("=", 1) |
| os.environ.setdefault(_k.strip(), _v.strip().strip("'\"")) |
|
|
| import ftfy |
| from datasets import load_dataset |
| from huggingface_hub import HfFileSystem |
|
|
| EOT = "<|endoftext|>" |
|
|
|
|
| def tinystories(): |
| buf = [] |
| with HfFileSystem().open("datasets/roneneldan/TinyStories/TinyStoriesV2-GPT4-train.txt", "r", |
| encoding="utf-8", errors="replace") as f: |
| for line in f: |
| if EOT in line: |
| if buf: |
| yield " ".join(buf) |
| buf = [] |
| else: |
| buf.append(line.strip()) |
|
|
|
|
| def fineweb_edu(): |
| for r in load_dataset("HuggingFaceFW/fineweb-edu", "sample-10BT", split="train", streaming=True): |
| if r["int_score"] >= 4: |
| yield r["text"] |
|
|
|
|
| SOURCES = {"tinystories": tinystories, "fineweb_edu": fineweb_edu} |
|
|
|
|
| def main(): |
| size = sys.argv[1] |
| target = {"10M": 10e6, "100M": 100e6}[size] |
| for name, gen in SOURCES.items(): |
| if len(sys.argv) > 2 and name not in sys.argv[2:]: |
| continue |
| out = ROOT / "out" / f"base_{name}_{size}" |
| out.mkdir(parents=True, exist_ok=True) |
| words, n = 0, 0 |
| with (out / "train.txt").open("w", encoding="utf-8") as f: |
| for text in gen(): |
| text = ftfy.fix_text(text).strip() |
| if not text: |
| continue |
| f.write(text + f"\n{EOT}\n") |
| words += len(text.split()) |
| n += 1 |
| if words >= target: |
| break |
| print(f"{name} {size}: {words/1e6:.2f}M words, {n} docs", flush=True) |
|
|
|
|
| if __name__ == "__main__": |
| main() |
|
|
