Multi-layer Transformers achieve better approximation for k-th largest retrieval tasks than single-layer ones, with the InfoFlow framework tracking information propagation to explain the gap.
Remark.If we chooseX= [0,1] 3, we can also choose a similar target for Theorem 1 to hold
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InfoFlow: A Framework for Multi-Layer Transformer Analysis
Multi-layer Transformers achieve better approximation for k-th largest retrieval tasks than single-layer ones, with the InfoFlow framework tracking information propagation to explain the gap.