Router Upcycling initializes MoE routers from the dense model's attention heads, achieving about 2% higher average zero-shot accuracy than vanilla upcycling on small Qwen 8x0.5B models.
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Router Upcycling: Leveraging Mixture-of-Routers in Mixture-of-Experts Upcycling
Router Upcycling initializes MoE routers from the dense model's attention heads, achieving about 2% higher average zero-shot accuracy than vanilla upcycling on small Qwen 8x0.5B models.