DAM-SE: A Blockchain-Based Optimized Solution for the Counterattacks in the Internet of Federated Learning Systems

Table 2

The role of each participant.

Participant	Task	Availability of data	Availability of equipment for model training
Administrator	Deploy smart contracts on the public blockchain and register requesters and workers to smart contracts upon request	—	—
Requester	Submit a training task to obtain a trained model	Unnecessary	Unnecessary
Worker	Train the task model submitted by the requester for the reward	Yes	Yes
Consensus node	Local aggregation, synchronization of blockchain information, and distribution of rewards to submodels in the cluster	Unnecessary	Unnecessary