# Questions tagged [elastic-net]

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### Elastic Net alpha value using GLMNET 4.1-8

Is it a valid method to “brute force” the alpha value for an elastic net? What I mean is trying alpha = .1, .2, .3, .4 and so on to 1.0 and looking at the highest R-squared value of each and choosing ...
30 views

### Logistic regression with E-net regularization produces different set of weights with each run

I am currently trying to make a model to classify brain tumor patients by incidence of epilepsy using a combination of variables extracted from clinical records, and radiomics features from segmented ...
217 views

### How to calculate the significance of each feature?

I built a predictive model using an elastic net regression model with sklearn. The model R2 = 0.015. I know SHAP method could provide the importance of the features. However, How to calculate the ...
1 vote
77 views

### Why is the L2 penalty squared but the L1 penalty isn't in elastic-net regression?

There was some data set I worked with which I wanted to solve non negative least squares (NNLS) on and I wanted a sparse model. After a bit of experiementing I found that what worked the best for me ...
1 vote
325 views

### What is the purpose of positive parameter in sklearn.linear_model.ElasticNet?

I saw this parameter in the sklearn.linear_model.ElasticNet. What is the purpose of this? What is the possible scenario where we want to force the coefficients to ...
• 243
1 vote
64 views

### Why are we not checking the significance of the coefficients in Lasso and elastic net models

As far as I know, we don't check the coefficient significance in Lasso and elasticnet models. Is it because insignificant feature coefficients will be driven to zero in these models?. Does that mean ...
• 243
76 views

### I am curious about the interpretation of the elastic Net coefficient

I want to discover the importance of variables in data through sklearn's Elactic Net. But I don't understand the exact meaning of coefficient. When training, I used alpha: 0.01585598, l1_ratio: 1.000. ...
558 views

### Using BERT for search engine with an Elastic Database

I want to make Documents search engine where the user will type a query and top n relevant documents should be shown. I want to use BERT for the searching and the first question is can i use it with ...
1 vote
592 views

### Can elastic net l1 ratio be greater than 1?

I have multiple datasets that I trained with ElasticNetCV (sklearn), and I noticed that many of them selected l1_ratio = 1 as ...
• 221
1 vote
779 views

### What is the meaning of the sparsity parameter

Sparse methods such as LASSO contain a parameter $\lambda$ which is associated with the minimization of the $l_1$ norm. Higher the value of $\lambda$ ($>0$) means that more coefficients will be ...
• 541
199 views

### ElasticNet Convergence odd behavior

I am optimizing a model using ElasticNet, but am getting some odd behavior. When I set the tolerance hyperparameter with a small value, I get ...
16k views

### What needs to be done to make n_jobs work properly on sklearn? in particular on ElasticNetCV?

The constructor of sklearn.linear_model.ElasticNetCV takesn_jobs as an argument. Quoting the documentation here n_jobs: int, ...
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