In the Mamba-block ablation with SSD as the inner sequence-mixing layer, parallel ABCX projections use fewer parameters and slightly lower perplexity than sequential projections, while the extra normalization used in Mamba-2 slightly improves perplexity. The paper also reports preliminary larger-scale evidence that the extra normalization improves training stability.

In the Mamba-block ablation with SSD as the inner sequence-mixing layer, parallel ABCX projections use fewer parameters and slightly lower perplexity than sequential projections, while the extra normalization used in Mamba-2 slightly improves perplexity. The paper also reports preliminary larger-scale evidence that the extra normalization improves training stability. · CiteArk

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论文报告	最近可用实测	证据判断
129.3 million parameters	—	尚未评估
11.76 perplexity	—	尚未评估
129.3 million parameters	—	尚未评估
11.54 perplexity	—	尚未评估
126.5 million parameters	—	尚未评估
11.66 perplexity	—	尚未评估
126.5 million parameters	—	尚未评估
11.49 perplexity	—	尚未评估

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