Top "Feature-selection" questions

In machine learning, this is the process of selecting a subset of most relevant features to construction your data model.

Linear regression analysis with string/categorical features (variables)?

Regression algorithms seem to be working on features represented as numbers. For example: This data set doesn't contain categorical features/…

python machine-learning regression linear-regression feature-selection
Random Forest Feature Importance Chart using Python

I am working with RandomForestRegressor in python and I want to create a chart that will illustrate the ranking of …

python plot random-forest feature-selection
Scikit-Learn Linear Regression how to get coefficient's respective features?

I'm trying to perform feature selection by evaluating my regressions coefficient outputs, and select the features with the highest magnitude …

scikit-learn linear-regression feature-selection
How are feature_importances in RandomForestClassifier determined?

I have a classification task with a time-series as the data input, where each attribute (n=23) represents a specific point …

scikit-learn random-forest feature-selection
The easiest way for getting feature names after running SelectKBest in Scikit Learn

I would like to make supervised learning. Until now I know to do supervised learning to all features. However, I …

python pandas scikit-learn feature-selection
Understanding the `ngram_range` argument in a CountVectorizer in sklearn

I'm a little confused about how to use ngrams in the scikit-learn library in Python, specifically, how the ngram_range …

python scikit-learn n-gram feature-selection
Information Gain calculation with Scikit-learn

I am using Scikit-learn for text classification. I want to calculate the Information Gain for each attribute with respect to …

python machine-learning scikit-learn text-classification feature-selection
sklearn logistic regression - important features

I'm pretty sure it's been asked before, but I'm unable to find an answer Running Logistic Regression using sklearn on …

python scikit-learn feature-selection
Feature selection using scikit-learn

I'm new in machine learning. I'm preparing my data for classification using Scikit Learn SVM. In order to select the …

python machine-learning scikit-learn feature-selection chi-squared