Figure 1.

Conceptual representation of the federated setup with two partners of different size, illustrating cross-end point and cross-compound federation. In practice, the number of end points amenable to cross-compound federation is far lower than to cross-end point federation, due to challenges in reconciliation across partners. Identical structures at different partners get identically represented, allowing implicit mapping through the machine learning algorithm without exchanging any sensitive information. Permission has been obtained to use the MELLODDY logo.