$WiMi Hologram Cloud (WIMI.US)$ Blockchain, with its decentr...

Blockchain, with its decentralization, immutability and transparency, has become an important means to guarantee the security of federated learning systems.

In BAFL, blockchain records the history of each model update to ensure the integrity and traceability of model data and prevent malicious tampering.

Meanwhile, the consensus mechanism of blockchain can identify and exclude abnormal behaviors and enhance the system's ability to resist poisoning attacks.

Compared to traditional synchronous federated learning, asynchronous learning allows participating devices to flexibly upload model updates according to their conditions without waiting for all devices to complete a training round. 

In the future, BAFL will be a comprehensive technology ecosystem that involves collaborative innovation at multiple levels, including algorithms, hardware, software, policy and marketing.