The invention belongs to the technical field of
machine learning, and relates to a heterogeneous federal map learning method and
system. The method comprises the following steps: in each
client, constructing a globally shared symbiotic space, and generating a unified target semantic prototype through a
label propagation mechanism; generating a prototype
distribution matrix, and uploading the prototype
distribution matrix to a
server side; generating a global prototype by aggregating the prototype
distribution matrix of each
client, and distributing the global prototype to each
client; embedding and mapping the nodes into a hash bucket by using a
hash function, generating aligned local hash codes and local
anchor point embedding, and uploading the local hash codes and the local
anchor point embedding to a
server side; aggregating the local hash codes and the local
anchor point embedding to obtain global hash codes and global anchor point embedding; global
hash coding and global anchor point embedding are optimized through a graph auto-
encoder and consistency constraint, and alignment of the concentrated graph is optimized. According to the invention, the flexibility and efficiency of federal map learning are improved, the data privacy and security are ensured, and the communication overhead is reduced.