artifacts/dict_auto_xz_AutoZip/README.md

# dict-auto-xz (AutoZip)

Approach:
- Detect bytes not present in enwik8.
- Substitute high-gain XML/wiki/text patterns with those single-byte codes.
- Compress the transformed stream with tuned xz/lzma2.
- Decompress by xz decode + inverse substitution table (`subs.json`).

Backend xz options:
- `-9e --lzma2=dict=512MiB,nice=273,mf=bt4,mode=normal,lc=4,lp=0,pb=0`

Roundtrip:
- Verified byte-identical output against `shared_resources/enwik8`.

Score:
- See `results.json` (archive + decompressor.zip).