Overfit

verb

verb ·Rare ·Advanced level

Definitions

Verb
  1. 1
    To use a statistical model that has too many parameters relative to the size of the sample, leading to a good fit with the sample data but a poor fit with new data.

    "In all modeling techniques, and neural networks in particular, care must be taken not to overtrain or overfit the model. If possible, models should be interpreted in terms of their mechanistic meaning."

Example

More examples

"In all modeling techniques, and neural networks in particular, care must be taken not to overtrain or overfit the model. If possible, models should be interpreted in terms of their mechanistic meaning."

Etymology

From over- + fit.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.