ResearchBenchmarksFederated Cross-Domain Recommendation on GoodReads Crime, Comics & Children AverageFollow5.72Avg H@5FeDecider3.75444.26474.7755.2853Feb 17, 2026Evaluation ResultsMethodMethodLinksAvg H@5FeDecider2026.025.72FedProx2026.025.59Ditto2026.025.59Local train2026.025.51FDLoRA2026.025.47Rolora2026.025.45FellRec2026.025.43PFedAvg2026.025.39FFA-LoRA2026.024.51FedAvg2026.023.83