double descent

English

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double descent

Wikipedia

Noun

double descent (uncountable)

1. The presence of both patrilineal and matrilineal descent groups in a society.
2. (statistics, machine learning) The phenomenon where a model with few parameters and a model with many parameters have a small test error, but a model whose number of parameters is about the same as the number of data points used to train the model will have a large error.