Als «orange» getaggte Fragen

29
Warum ist xgboost so viel schneller als sklearn GradientBoostingClassifier?

Ich versuche, ein Steigungsverstärkungsmodell mit über 50.000 Beispielen und 100 numerischen Merkmalen zu trainieren. XGBClassifierBewältigt 500 Bäume innerhalb von 43 Sekunden auf meiner Maschine, während GradientBoostingClassifiernur 10 Bäume (!) in 1 Minute und 2 Sekunden bearbeitet werden :(...

scikit-learn xgboost gbm data-mining classification data-cleaning machine-learning reinforcement-learning data-mining bigdata dataset nlp language-model stanford-nlp machine-learning neural-network deep-learning randomized-algorithms machine-learning beginner career xgboost loss-function neural-network software-recommendation naive-bayes-classifier classification scikit-learn feature-selection r random-forest cross-validation data-mining python scikit-learn random-forest churn python clustering k-means machine-learning nlp sentiment-analysis machine-learning programming python scikit-learn nltk gensim visualization data csv neural-network deep-learning descriptive-statistics machine-learning supervised-learning text-mining orange data parameter-estimation python pandas scraping r clustering k-means unsupervised-learning
16
Vergrößere die seaborn Heatmap

Ich erstelle einen corr()DF aus einem Original-DF. Die corr()df herauskommen 70 X 70 , und es ist unmöglich , die Heatmap sichtbar zu machen ... sns.heatmap(df). Wenn ich versuche, das anzuzeigen corr = df.corr(), passt die Tabelle nicht auf den Bildschirm und ich kann alle Zusammenhänge sehen. Ist...

visualization pandas plotting machine-learning neural-network svm decision-trees svm efficiency python linear-regression machine-learning nlp topic-model lda named-entity-recognition naive-bayes-classifier association-rules fuzzy-logic kaggle deep-learning tensorflow inception classification feature-selection feature-engineering machine-learning scikit-learn tensorflow keras encoding nlp text-mining nlp rnn python neural-network feature-extraction machine-learning predictive-modeling python r linear-regression clustering r ggplot2 neural-network neural-network training python neural-network deep-learning rnn predictive-modeling databases sql programming distribution dataset cross-validation neural-network deep-learning rnn machine-learning machine-learning python deep-learning data-mining tensorflow visualization tools sql embeddings orange feature-extraction unsupervised-learning gan machine-learning python data-mining pandas machine-learning data-mining bigdata apache-spark apache-hadoop deep-learning python convnet keras aggregation clustering k-means r random-forest decision-trees reference-request visualization data pandas plotting neural-network keras rnn theano deep-learning tensorflow inception predictive-modeling deep-learning regression sentiment-analysis nlp encoding deep-learning python scikit-learn lda convnet keras predictive-modeling regression overfitting regression svm prediction machine-learning similarity word2vec information-retrieval word-embeddings neural-network deep-learning rnn
11
Gibt es gute Out-of-the-Box-Sprachmodelle für Python?

Ich erstelle Prototypen für eine Anwendung und benötige ein Sprachmodell, um die Ratlosigkeit einiger generierter Sätze zu berechnen. Gibt es ein geschultes Sprachmodell in Python, das ich problemlos verwenden kann? So etwas Einfaches wie model = LanguageModel('en') p1 = model.perplexity('This is a...

python nlp language-model r statistics linear-regression machine-learning classification random-forest xgboost python sampling data-mining orange predictive-modeling recommender-system statistics dimensionality-reduction pca machine-learning python deep-learning keras reinforcement-learning neural-network image-classification r dplyr deep-learning keras tensorflow lstm dropout machine-learning sampling categorical-data data-imputation machine-learning deep-learning machine-learning-model dropout deep-network pandas data-cleaning data-science-model aggregation python neural-network reinforcement-learning policy-gradients r dataframe dataset statistics prediction forecasting r k-means python scikit-learn labels python orange cloud-computing machine-learning neural-network deep-learning rnn recurrent-neural-net logistic-regression missing-data deep-learning autoencoder apache-hadoop time-series data preprocessing classification predictive-modeling time-series machine-learning python feature-selection autoencoder deep-learning keras tensorflow lstm word-embeddings predictive-modeling prediction machine-learning-model machine-learning classification binary theory machine-learning neural-network time-series lstm rnn neural-network deep-learning keras tensorflow convnet computer-vision