Unverified50% confidenceFactExact time
Symmetric aggregation functions such as sum and mean are order-independent, allowing the model to naturally satisfy permutation invariance and support an arbitrary number of input rows.
1
Sources
50%
Confidence
Long-term
Relevance
7/19/2026
First Seen
Sources
变长矩阵分类：如何为无序集合数据选择神经网络架构
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