Preguntas etiquetadas con naive-bayes-classifier

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¿Por qué xgboost es mucho más rápido que sklearn GradientBoostingClassifier?

Estoy tratando de entrenar un modelo de aumento de gradiente en más de 50k ejemplos con 100 características numéricas. XGBClassifiermaneja 500 árboles en 43 segundos en mi máquina, mientras que GradientBoostingClassifiermaneja solo 10 árboles (!) en 1 minuto y 2 segundos :( No me molesté en tratar...

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16
agrandar el mapa de calor marino

Creo un corr()df a partir de un df original. El corr()DF salió 70 X 70 y es imposible de visualizar el mapa de calor ... sns.heatmap(df). Si trato de mostrar corr = df.corr(), la tabla no se ajusta a la pantalla y puedo ver todas las correlaciones. ¿Es una forma de imprimir todo dfsin importar su...

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10
Relación entre convolución en matemáticas y CNN

He leído la explicación de la convolución y la entiendo hasta cierto punto. ¿Alguien puede ayudarme a entender cómo esta operación se relaciona con la convolución en redes neuronales convolucionales? ¿Es el filtro como una función gque aplica

machine-learning neural-network deep-learning cnn convolution machine-learning ensemble-modeling machine-learning classification data-mining clustering machine-learning feature-selection convnet pandas graphs ipython machine-learning apache-spark multiclass-classification naive-bayes-classifier multilabel-classification machine-learning data-mining dataset data-cleaning data machine-learning data-mining statistics correlation machine-learning data-mining dataset data-cleaning data beginner career python r visualization machine-learning data-mining nlp stanford-nlp dataset linear-regression time-series correlation anomaly-detection ensemble-modeling data-mining machine-learning python data-mining recommender-system machine-learning cross-validation model-selection scoring prediction sequential-pattern-mining categorical-data python tensorflow image-recognition statistics machine-learning data-mining predictive-modeling data-cleaning preprocessing classification deep-learning tensorflow machine-learning algorithms data keras categorical-data reference-request loss-function classification logistic-regression apache-spark prediction naive-bayes-classifier beginner nlp word2vec vector-space-models scikit-learn decision-trees data programming