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Showing posts with the label Scikit Learn

How To Fix Valueerror: Multiclass Format Is Not Supported

This is my code and I try to calculate ROC score but I have a problem with ValueError: multiclass f… Read more How To Fix Valueerror: Multiclass Format Is Not Supported

Re-calculate Similarity Matrix Given New Documents

I'm running an experiment that include text documents that I need to calculate the (cosine) sim… Read more Re-calculate Similarity Matrix Given New Documents

Finding Auc Score For Svm Model

I understand that Support Vector Machine algorithm does not compute probabilities, which is needed … Read more Finding Auc Score For Svm Model

Attributeerror While Implementing Famd With Smotenc In A Imblearn Pipeline

I'm trying to implement a pipeline with FAMD, SMOTENC, and other preprocessing steps. However i… Read more Attributeerror While Implementing Famd With Smotenc In A Imblearn Pipeline

Use Pipeline With Custom Transformer In Scikit Learn

I tried to transform the column 'X' using values in column 'y' (this is a toy examp… Read more Use Pipeline With Custom Transformer In Scikit Learn

Is The Predict_proba Method Of Scikit Learn's Sgdclassifier Thread Safe?

I would like to expose a model built using sklearn.linear_model.SGDClassifier through a web API. Ev… Read more Is The Predict_proba Method Of Scikit Learn's Sgdclassifier Thread Safe?

Custom Transformer Mixin With Featureunion In Scikit-learn

I am writing custom transformers in scikit-learn in order to do specific operations on the array. F… Read more Custom Transformer Mixin With Featureunion In Scikit-learn

How To Apply A Scikitlearn Classifier To Tiles/windows In A Large Image

Given is a trained classifer in scikit learn, e.g. a RandomForestClassifier. The classifier has bee… Read more How To Apply A Scikitlearn Classifier To Tiles/windows In A Large Image

No Module Name 'sklearn.forest.ensemble'

I am using this code to detect face_spoofing import numpy as np import cv2 import joblib from face_… Read more No Module Name 'sklearn.forest.ensemble'

How To Fit A Column Of A Dataframe Into Poisson Distribution In Python

I have been trying to find a way to fit some of my columns (that contains user click data) to pois… Read more How To Fit A Column Of A Dataframe Into Poisson Distribution In Python

Reading Documents From File When Using Sklearn.feature_extraction.text Countvectorizer

I am able to use code as in the example from the documentation, where the input to the fit_transfor… Read more Reading Documents From File When Using Sklearn.feature_extraction.text Countvectorizer

Confusionmatrixdisplay (scikit-learn) Plot Labels Out Of Range

The following code plots a confusion matrix: from sklearn.metrics import ConfusionMatrixDisplay co… Read more Confusionmatrixdisplay (scikit-learn) Plot Labels Out Of Range

How To Apply Linear Regresssion Of Sklearn For Some String Variable

I am going to predict the box office of a movie using logistic regression. I got some train data in… Read more How To Apply Linear Regresssion Of Sklearn For Some String Variable

Sci-kit Learn: Reshape Your Data Either Using X.reshape(-1, 1)

I'm training a python (2.7.11) classifier for text classification and while running I'm get… Read more Sci-kit Learn: Reshape Your Data Either Using X.reshape(-1, 1)

Label Encoding Multiple Columns With The Same Category

Consider the following dataframe: import pandas as pd from sklearn.preprocessing import LabelEncode… Read more Label Encoding Multiple Columns With The Same Category

Loading Jpg Of Different Sizes Into Numpy.array - Valueerror: Found Input Variables With Inconsistent Numbers Of Samples

I have a folder with differently sized jpg images from which I'd like to generate a train and a… Read more Loading Jpg Of Different Sizes Into Numpy.array - Valueerror: Found Input Variables With Inconsistent Numbers Of Samples

Plotting A Graph On Axes But Getting No Results While Trying To Classify Image Based On Hog Features

I need to use boosted cascaded training to classify some images in scikit-learn. I want to classify… Read more Plotting A Graph On Axes But Getting No Results While Trying To Classify Image Based On Hog Features

Predicting Numerical Features Based On String Features Using Sk-learn

I am trying to predict the 'Full_Time_Home_Goals' column (feature). I have followed the Kag… Read more Predicting Numerical Features Based On String Features Using Sk-learn

What Is The Difference Between Class Weight = None And Auto In Svm Scikit Learn

In scikit learn svm classifier what is the difference between class_weight = None and class_weight … Read more What Is The Difference Between Class Weight = None And Auto In Svm Scikit Learn

Scikit-learn Pca: Matrix Transformation Produces Pc Estimates With Flipped Signs

I'm using scikit-learn to perform PCA on this dataset. The scikit-learn documentation states th… Read more Scikit-learn Pca: Matrix Transformation Produces Pc Estimates With Flipped Signs