Public

XFEL Serial Femtosecond Crystallography (SFX) — Public Tier

(5 scenes)

Full-access development tier with all data visible.

What you get

Measurements (y), ideal forward operator (H), spec ranges, ground truth (x_true), and true mismatch spec.

How to use

Load HDF5 → compare reconstruction vs x_true → check consistency → iterate.

What to submit

Reconstructed signals (x_hat) and corrected spec as HDF5.

Parameter Specifications

✓

True spec visible — use these exact values for Scenario III oracle reconstruction.

Parameter Spec Range True Value Unit
hit_rate 6.0 – 18.0 12.0 -
indexing_ambiguity -2.0 – 4.0 1.0 -
partiality_model_error -4.0 – 8.0 2.0 -
background_from_jet/carrier -6.0 – 12.0 3.0 -

InverseNet Baseline Scores

Method: CPU_baseline — Mismatch parameter: nominal

Scenario I (Ideal)

7.77 dB

SSIM 0.3772

Scenario II (Mismatch)

7.65 dB

SSIM 0.2288

Scenario III (Oracle)

16.34 dB

SSIM 0.4542

Per-scene breakdown (4 scenes)
Scene PSNR I SSIM I PSNR II SSIM II PSNR III SSIM III
scene_00 7.57 0.3615 7.52 0.2249 16.28 0.4660
scene_01 7.70 0.3833 7.81 0.2328 16.28 0.4522
scene_02 7.97 0.3846 7.55 0.2285 16.43 0.4500
scene_03 7.84 0.3794 7.72 0.2289 16.35 0.4487

Public Tier Leaderboard

# Method Score PSNR SSIM Consistency Trust Source
1 CNN Hit-Finder + gradient 0.753 30.66 0.926 0.88 ✓ Certified Ke et al., J. Synchrotron Rad. 2018
2 CrysFormer + gradient 0.727 28.72 0.895 0.91 ✓ Certified Crystallographic transformer, 2024
3 CrystFEL + gradient 0.612 23.14 0.737 0.93 ✓ Certified White et al., J. Appl. Cryst. 2012
4 EMC + gradient 0.578 22.31 0.703 0.87 ✓ Certified Loh & Elser, Phys. Rev. E 2009

Visible Data Fields

y H_ideal spec_ranges x_true true_spec

Dataset

Format: HDF5
Scenes: 5

Scoring Formula

0.4 × PSNR_norm + 0.4 × SSIM + 0.2 × (1 − ‖y − Ĥx̂‖/‖y‖)

PSNR: 40% SSIM: 40% Consistency: 20%
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