BEIJING, Oct. 11, 2024 /PRNewswire/ -- WiMi Hologram Cloud Inc. (NASDAQ: WIMI) ("WiMi" or the "Company"), a leading global Hologram Augmented Reality ("AR") Technology provider, today announced a federated learning framework based on layered and sharded blockchain technology, which can solve multiple key issues in federated learning, including information interaction, data security and privacy protection, computational efficiency, and system scalability by combining layered and sharded blockchain technologi ...