Federated Learning
readmit-federated · 12 hospitals · secure aggregation · ε=1.2
Rounds
42
committed
Participants
11 / 12
1 attesting
Global AUC
0.941
+0.121 vs base
ε consumed
0.42 / 1.20
35%
Global model AUC per round
Round 42 · aggregation
ProtocolSecure Sum + DP
NoiseGaussian σ=1.4
ε per round0.010
δ1e-5
Clip norm1.0
Client fraction1.0
Batches/site128
Committed at09:52 UTC
Participating sites
Silo-based cross-institution training
| Site | Rows | Status | Contribution | |
|---|---|---|---|---|
St. Mary Hospital · Boston | 82k | Online | +0.008 | audit log |
Cedar Clinic · SF | 44k | Online | +0.004 | audit log |
Northgate Medical · London | 119k | Online | +0.011 | audit log |
Osaka Regional | 68k | Online | +0.006 | audit log |
Nordic Health Group | 51k | Online | +0.005 | audit log |
Berlin Charité | 97k | Attesting | - | audit log |
Sydney Central | 72k | Online | +0.007 | audit log |
Toronto General | 88k | Offline | - | audit log |
MedNet Bogotá | 39k | Online | +0.003 | audit log |
Mumbai Apollo | 112k | Online | +0.009 | audit log |
Cape Town Regional | 42k | Online | +0.004 | audit log |
Dubai HealthCity | 58k | Online | +0.005 | audit log |
Round history
| Round | Sites / Participants | Aggregation | Δ metric | Noise | Status |
|---|---|---|---|---|---|
| #42 | 12 / 11 | Secure Sum | +0.006 AUC | ε=1.2 | Committed |
| #41 | 12 / 12 | Secure Sum | +0.011 AUC | ε=1.2 | Committed |
| #40 | 12 / 10 | Secure Sum | -0.002 AUC | ε=1.2 | Rolled back |
| #39 | 12 / 12 | Secure Sum | +0.018 AUC | ε=1.5 | Committed |
| #38 | 11 / 11 | Secure Sum | +0.009 AUC | ε=1.5 | Committed |