machine learning - How to save to disk / export a lightgbm ...
Mar 17, 2019 · Hi I am unable to find a way to save a lightgbm.LGBMRegressor model to a file for later re-use.
python - Feature importance using lightgbm - Stack Overflow
Nov 21, 2018 · 8 Depending on whether we trained the model using scikit-learn or lightgbm methods, to get importance we should choose respectively feature_importances_ property or …
Is there a way to print a list of the most important features of an ...
Oct 4, 2021 · 2 Running an LGBM Classifier model and I'm able to use lgbm.plot_importance to plot the most important features but I would prefer having a list of these features instead, does anybody know …
How does the predict_proba() function in LightGBM work internally?
Aug 19, 2020 · This is in reference to understanding, internally, how the probabilities for a class are predicted using LightGBM. Other packages, like sklearn, provide thorough detail for their classifiers. …
How to get each individual tree's prediction in LightGBM?
Sep 2, 2023 · For a LightGBM model, each tree's leaves contain raw values in the units of the objective function, and leaf values are summed to produce a prediction. LightGBM's predict() API allows you to …
LightGBM: train () vs update () vs refit () - Stack Overflow
Sep 9, 2022 · updated_model = lightgbm.train(params=last_model_params, train_set=new_data, init_model = last_model) However, I'm wondering if this is actually the correct way to approach …
How to make use of the eval_result method in Light GBM pipeline?
Aug 16, 2021 · I use the ligth GBM Algorithm and have created a pipeline which looks much like the following: #model definition model_lgbm = LGBMClassifier( #training loss objective='
Use 'predict_contrib' in LightGBM to get SHAP-values
Nov 11, 2020 · In the LightGBM documentation it is stated that one can set predict_contrib=True to predict the SHAP-values. How do we extract the SHAP-values (apart from using the shap package)? …
python - Lightgbm scores for custom RMSE loss function and build-in ...
May 25, 2020 · I think that’s exactly what LGBM ist doing as the minimum of MSE and RMSE are the same. The paratial derivative of MSE with respect to Y_i_hat is 2* (Y_i – Y_i_hat). I guess it is usual …
python - Lightgbm classifier with gpu - Stack Overflow
Feb 23, 2020 · model = lgbm.LGBMClassifier( n_estimators=1250, num_leaves=128, learning_rate=0.009, verbose=1 ) Using the LGBM classifier, is there a way to use this with GPU …