Crossvalidation

Recently heard in news about ongoing 10th CBSE exams. Then suddenly I recalled my 10th board exams days . PHEWWW..!!! how dreadful those examination days were. I remember as the exams were approaching near ,school teachers used to increase their teaching speed ,took extra lectures ,sometimes even ate up our…

Learning practical data science with Kaggle Competitions — In this blog, I am sharing the technique I used to correctly validate models in case of imbalanced dataset along with the complete solution to Kaggle’s Tabular March 2021 competition. The Kaggle Competition link can be found here. It is a classification problem and AUC is the evaluation metric. To…

import pandas as pd import numpy as np data=pd.read_csv('breast_cancer.csv') data.head(5)

Machine Learning is the science (and art) of programming computers so they can learn from data. (Aurélien Géron) Variable Types Numeric Variables (float, string) Such as age, square meter, price, length, etc. Categorical Variables (nominal, ordinal) We can see it either ordered or unordered, such as survival, classes, gender Dependent variable (target…

A better way to test your models — Overview Building machine learning models is a great process that includes several steps Collection of data Data Preparation & Preprocessing Expletory Data Analysis Feature Engineering and Selection Model Building and Evaluation Cross-Validation is one of the most important parts of Model Building and Evaluation. Before experimenting with Cross-Validation, let’s see what…

On trouve aisément sur internet une panoplie de modèles d’apprentissage machine déjà conçus, implémentés, optimisés et disponibles gratuitement au bonheur du plus grand nombre. Hélas, il arrive parfois qu’un contexte d’apprentissage machine spécifique demande une solution également spécifique, sur mesure. L’implémentation d’un modèle d’apprentissage machine donné peut se faire de…

A guide to Kaggle competitions with tips & tricks to get on the good side of the “Shake-up”. — If you’re interested in data science, you probably heard about Kaggle, a platform where hundreds of DS and ML enthusiasts meet, discuss, share and compete. In the first post of this series, I’m going to talk briefly about the format of Kaggle competitions and then move on to the fundamental…

For full code: https://www.kaggle.com/code/imnoob/gridsearchcv-vs-randomizesearchcv Approach: The cross-validation used here is 3.

Learn how to use this essential Machine Learning technique — This article will review one of the most important techniques in Machine Learning: nested cross-validation. When deploying a model, we select the best one from several choices (e.g., random forest vs. support vector machine) with the best combination of hyperparameters (e.g., random forest with 50 trees vs. one with 5…