NLP & ML4 min read
Federated Learning
When users can't be shared, FedCGR shares a language instead
FedCGR treats federated cross-domain recommendation as generation over a stable semantic item language. Items become discrete semantic IDs drawn from public metadata, so clients align without exchanging private interactions. The trade-off: a semantic-only bottleneck that local collaborative filtering evidence must fill.
2026-08-18