Knowing Feature Importance from Sparse Matrix












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I was working with a dataset which had a textual column as well as numerical columns, so I used tfidf for textual column and created a sparse matrix, similarly for the numerical features I created a sparse matrix using scipy.sparse.csr_matrix and combined them with the text sparse features.



Then I'm feeding the algorithm to a gradient boosting model and doing the rest of the training and prediction. However I want to know, is there any way I can plot the feature importance, of this sparse matrix and will be able to know the important feature column names?









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    $begingroup$


    I was working with a dataset which had a textual column as well as numerical columns, so I used tfidf for textual column and created a sparse matrix, similarly for the numerical features I created a sparse matrix using scipy.sparse.csr_matrix and combined them with the text sparse features.



    Then I'm feeding the algorithm to a gradient boosting model and doing the rest of the training and prediction. However I want to know, is there any way I can plot the feature importance, of this sparse matrix and will be able to know the important feature column names?









    share









    $endgroup$















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      $begingroup$


      I was working with a dataset which had a textual column as well as numerical columns, so I used tfidf for textual column and created a sparse matrix, similarly for the numerical features I created a sparse matrix using scipy.sparse.csr_matrix and combined them with the text sparse features.



      Then I'm feeding the algorithm to a gradient boosting model and doing the rest of the training and prediction. However I want to know, is there any way I can plot the feature importance, of this sparse matrix and will be able to know the important feature column names?









      share









      $endgroup$




      I was working with a dataset which had a textual column as well as numerical columns, so I used tfidf for textual column and created a sparse matrix, similarly for the numerical features I created a sparse matrix using scipy.sparse.csr_matrix and combined them with the text sparse features.



      Then I'm feeding the algorithm to a gradient boosting model and doing the rest of the training and prediction. However I want to know, is there any way I can plot the feature importance, of this sparse matrix and will be able to know the important feature column names?







      machine-learning python nlp feature-selection





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      asked 6 mins ago









      Debadri DuttaDebadri Dutta

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