All Questions
Tagged with python scikit-learn
21,906
questions
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min_samples_leaf in GradientBoostedClassifier() having weird behavior
Trying to tune the min_samples_leaf in a GradientBoostedClassifer(). I'm seeing expected results with the bias/variance tradeoff. However, just to test the boundaries, I made the min_samples_leaf > ...
-1
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0
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12
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I keep encountering this problem training a Random forest regressor
/usr/local/lib/python3.10/dist-packages/sklearn/base.py:432:
UserWarning: X has feature names, but RandomForestRegressor was fitted without feature names
warnings.warn(
I have tried adding .values ...
1
vote
1
answer
29
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Leave one out encoding on test set with transform
Context: When preprocessing a data set using sklearn, you use fit_transform on the training set and transform on the test set, to avoid data leakage. Using leave one out (LOO) encoding, you need the ...
- 251
1
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1
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19
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MultiLabelBinarizer: inverse_transform How can get a list of labels sorted according to their probability?
I am doing a multi label classification and I use MultiLabelBinarizer to translate the list of labels into Zeros and Ones.
I could get the Labels using inverse_transform which is super. However, in a ...
- 462
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12
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Is it possible to integrate feature extraction within Core ML model/pipeline?
I have a Core ML model (.mlmodel) which I then can use in the Swift code using the Core ML framework to make predictions. However the feature extraction is also happening in this code. I currently use ...
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35
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How to improve Random Forest accuracy? [closed]
I am working on a basic random forest classifier but I currently have extremely low results and I don't know why. I need another set of eyes to see if I have an obvious problem.
My dataset is a list ...
- 9
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26
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Is it possible to limit the scikit learn model to only predict certain tags?
I have two models trained on a number of tags and use it for predicting the genre of a game. I noticed that due to have the models were trained, sometimes the same input data can have the two models ...
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29
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ValueError when loading sklearn DecisionTreeClassifier pickle in Python 3.10
I'm encountering an issue while transitioning from Python 3.7.3 to Python 3.10 due to the deprecation of the older version. The problem arises when attempting to load a pickled sklearn ...
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37
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Using an array as a feature/independent variable? [closed]
Let's say I have a dataframe of:
Subject id (int)
Age (int)
Sex (int 1- for male, 2- for female)
Pearson CC representing a functional network (matrix)
Which means i have an array of arrays for the ...
- 7
-1
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20
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Very high MAE and MSE on my RandomForestRegressor
I got a flight predictions dataset that i wanted to try my machine learning skills.
I cleaned the data and fixed some new features and removed others
i also got out some valuable data. But when i ...
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-2
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25
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sklearn and imputer library issues [duplicate]
ImportError: cannot import name 'Imputer' from 'sklearn.preprocessing' (C:\Users\user\anaconda3\lib\site-packages\sklearn\preprocessing\__init__.py)
I'm getting this. I'm tired of them errors
I've ...
0
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34
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XGBoost Classifier, Grid search
I am trying to apply an XGBoost Classifier model in Python via XGBClassifier (see documentation here). The idea is to train the model on a city-year (e.g. zurich-2000) couple and test it on data for ...
- 661
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17
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Store/load Scikit Learn objects (Pipeline, ColumnTransformer) without different version considerations?
I need to be able to somehow store and reload a Scikit Learn pipeline in a way that breaking changes between different Scikit Learn versions aren't as much of a concern as they are when I use e.g. ...
- 2,091
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1
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38
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K-Means taking a long time to run
I have a dataset that has 3 million records with 15 columns that I'm using for customer segmentation.
I've used KMeans and MiniBatchKMeans but it's running even after 45 hours (did not run them ...
1
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0
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34
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When running via command line, receive error ''no attribute predict_proba"
I have a set of code that, when I run it in a Python interpreter (3.8.4), everything works fine. However, when I try to run via the command line, I end up receiving an error:
AttributeError: This '...