zhiyuanhucs/game-data-anomaly-samples

Game-data quality — CORRECTED analysis (controller / uncaptured-input finding)

TL;DR

Many sessions that the first pass called "completely idle" are not idle. They were played with a controller/gamepad (or are cutscenes / auto-path), which the keyboard+mouse capture tool never recorded. The video shows full gameplay while the action labels are empty — poison for keyboard+mouse behaviour cloning.

Proof (胡宸 / Monster Hunter World)

• parquet actions: 18,857 frames, 100% {dx:0,dy:0,scroll:0,buttons:[]}, total mouse displacement 0px, keyboard in 2 frames.
• raw source video-km-frames.json: 257,162 frames @60fps, every frame events:[], 0.000% non-zero → empty at the source, not a conversion bug.
• video frame-to-frame Δ = 39.5 (clearly moving), fps.jsonl = 100–300 fps, game = running.
• Parser verified correct on a contrast session (Need for Speed / 李博: keyboard detected in 99.58% of frames).
• 100% of the 252 "completely-idle ≥50%" sessions have a changing picture (brightness range 150–255); zero are truly frozen.

Corrected metric (genre-independent)

Per session: share of time spent in long (>5s) continuous zero-keyboard-mouse runs while the picture is changing. This catches controller play, cutscenes, auto-path and desync, and does NOT penalise genre (keyboard-only racing, mouse-only CRPG, key-holding, FPS flicks).

Numbers (1923 sessions, 2413 h)

class	sessions	hours	meaning
ok (<15% dead)	~905	~1200	usable
uncaptured_some (15–40% dead)	738	873	trim the dead segments, keep rest
uncaptured_heavy/full (≥40% dead)	253	311	exclude (controller/cutscene)
black_screen	35	41	pixel defect
dark	5	5	pixel defect

Top games in the exclude set: genshin (120), cyberpunk-2077, where-winds-meet, uncharted-4, hogwarts-legacy, horizon-forbidden-west, death-stranding-2 … (controller-first titles).

Files

• reclassified_sessions.csv — every session with corrected class + long_noinput_pct, input_active_pct, brightness motion, black/dark/teleport, hours, path.
• exclude_uncaptured.csv — the exclude + trim candidates.

Note on the videos/<flag>/ folders

Those folders use the FIRST (action-only) taxonomy. In particular completely_idle/, freeze/ and most mouse_static/ are really controller/uncaptured or genre-normal — use reclassified_sessions.csv for the corrected label of each session. (black_strict/, dark/ pixel defects remain valid.)

Genre false-positives to ignore (from the first pass)

• mouse_static (e.g. Need for Speed): keyboard-only driving — normal.
• keyboard_unused (e.g. The Sims 4 / 廖子豪): mouse-only game — normal.
• hyperactive (e.g. holding W+TAB while racing): normal, not a bot.