generalization error

[/ˌdʒɛnərəlaɪˈzeɪʃən ˈɛrər/]
nounpl: generalization errors
erro de generalização
1. In machine learning, the difference between a model's performance on training data and its performance on unseen test data; measures how well a trained model generalizes to new, previously unseen examples
The model achieved 95% accuracy on training data but only 78% on test data, indicating a significant generalization error.
O modelo alcançou 95% de precisão nos dados de treinamento, mas apenas 78% nos dados de teste, indicando um erro de generalização significativo.
2. The failure of a machine learning model to perform equally well on new data due to overfitting or underfitting
High generalization error suggests the model may be overfitted to the training set.
Um alto erro de generalização sugere que o modelo pode estar sobreajustado ao conjunto de treinamento.
This is a technical term primarily used in machine learning, data science, and artificial intelligence fields. It is equally understood in both Brazilian Portuguese and European Portuguese academic and professional contexts. The term is relatively recent in Portuguese, with many professionals using the English term directly or the Portuguese translation interchangeably in technical discussions.
Synonyms / Sinônimos
test errorvalidation errorout-of-sample errorprediction error
Antonyms / Antônimos
training accuracyperfect generalization

Regional Variations

General Brazilian
erro de generalização
standard technical term used in machine learning courses and documentation
Portugal
erro de generalização
same as Brazilian Portuguese; technical term consistent across Portuguese-speaking countries
Academic/Technical
erro de generalização
preferred term in academic and professional machine learning contexts

Related Words

overfittingunderfittingtraining errorcross-validationregularizationbias-variance tradeoff

Related Idioms & Phrases

reduce generalization error
minimize generalization error
generalization error gap
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