aysel12390/flux-human-preference-bo

FLUX human preference sessions

Preference data from a browser dashboard where respondents compared FLUX.1-schnell images. Each session is one person and one prompt. In every round the person sees several candidates and picks one. A blind test at the end compares the optimized image with the baseline.

The label is a choice: chosen: true on the image the respondent picked in that round.

Preview

Each row is one prompt. The four images are candidates from round 0. The green border marks the human choice.

Counts

Verified against annotations/*.json and images/:

Sessions (annotations)	384
Sessions with image folders	311
Sessions linked to a respondent id	261
Respondents	140
Prompt ids (incl. empty / legacy)	35
Prompt ids with non-empty text	25
Candidate images in rounds	11,404
Chosen images	2,851
Blind tests	265

123 sessions have no participant_id (no row linked in the dashboard export). Respondent ids are anonymous dashboard tokens (user-…), not names or emails.

73 sessions appear in sessions.json but have no folder under images/ and no comparison rows (metadata only).

10 early / legacy prompts have null prompt text (portrait_woman_curly, dog_golden_meadow, and others listed in summary.json). prompt_id is still set.

Files

• annotations/comparisons.json — one row per candidate image in a round
• annotations/sessions.json — one row per session
• annotations/blind_tests.json — final baseline-vs-best choices
• images/<session_id>/ — JPEGs (311 sessions)
• preview_grid.png — visual preview of preference rounds
• summary.json — aggregate counts

Generator: FLUX.1-schnell, 4 steps, 512×512. The search variables are SVD sigma mods and Chebyshev noise coefficients (sigma, cheb).

Comparison row

{
  "session_id": "human_bo_animal_cat_joint_all_20260729_152540",
  "participant_id": "user-a8mvf1wrka19",
  "prompt_id": "animal_cat",
  "prompt": "adorable fluffy kitten ...",
  "group": "animal",
  "round": 0,
  "candidate_idx": 3,
  "n_candidates": 4,
  "chosen": true,
  "sigma": {"s0": 0.092, "s1": -0.027},
  "cheb": [12.471, -4.687, 2.638, -0.423],
  "image_path": "images/.../r00_3.jpg"
}