| # mimic-shards-v2 |
|
|
| Pre-built training shards for [MIMIC](https://github.com/erickfm/MIMIC) — |
| behavior-cloned Super Smash Bros. Melee bots. Derived from the raw ranked |
| replays in `erickfm/melee-ranked-replays`; this repo is the cached tensor |
| form so training pods never rebuild from `.slp`. |
|
|
| ## Layout |
|
|
| One folder per character (23 total: 22 roster characters + `fox/`). Each |
| folder is directly usable as a MIMIC `--data-dir`: |
|
|
| ``` |
| <char>/ |
| train_shard_*.pt # per-game v2 tensor shards |
| val_shard_*.pt # 10% held-out split (seed 42, split by file) |
| tensor_manifest.json # shard lists + game/frame counts |
| mimic_norm.json, norm_stats.json, cat_maps.json, |
| stick_clusters.json, controller_combos.json |
| ``` |
|
|
| ## Build provenance (2026-07-19) |
|
|
| - **Master-rank filtered**: per-port rank recovered from `netplay.name`; a |
| game is kept iff every target-character port is Master |
| (`tools/filter_masterchar.py`). Zelda, Pichu, and Kirby are absent — |
| fewer than 300 master-rank games exist for them. |
| - **v2 target alignment**: `target[i] = buttons[i+1]` (train with |
| `--reaction-delay 0`, no controller offset). |
| - **Nearest-of-9 c-stick history** (MIMIC commit `fb7bb1a`) — history, |
| targets, and inference all share one encoding. |
| - **Majority-vote character filter** (commit `01eb974`) — Sheik/Zelda |
| transform-safe. |
| - **7-class buttons** (A, B, Z, JUMP, TRIG, A_TRIG, NONE). |
| - `fox/` uses the fox-master champion's norm files (md5-identical lineage); |
| other characters use fresh per-character norms; hal37 stick clusters |
| throughout. Fox: 97,490 train / 10,861 val perspectives (941.6M train |
| frames) from 102,301 master games. |
| |
| ## Usage |
| |
| ```bash |
| hf download erickfm/mimic-shards-v2 --repo-type dataset \ |
| --include "falco/*" --local-dir data/ |
| python3 train.py --data-dir data/falco ... # see MIMIC repo for the recipe |
| ``` |
| |
