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Gradient boosting decision trees

Dataconomy

Gradient boosting decision trees (GBDT) are at the forefront of machine learning, combining the simplicity of decision trees with the power of ensemble techniques. Understanding the mechanics behind GBDT requires diving into decision trees, ensemble learning methods, and the intricacies of optimization strategies.

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How to build a decision tree model in IBM Db2

IBM Journey to AI blog

In this post, I will show how to develop, deploy, and use a decision tree model in a Db2 database. Using examples from the dataset, we’ll build a classification model with decision tree algorithm. Since I will create a decision tree model, I don’t need to deal with the large value and the missing values.

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Data mining

Dataconomy

Classification Classification techniques, including decision trees, categorize data into predefined classes. Decision trees and K-nearest neighbors (KNN) Both decision trees and KNN play vital roles in classification and prediction. This approach is useful for predicting outcomes based on historical data.

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Bagging in machine learning

Dataconomy

Base model training Next, each bootstrap sample undergoes independent training with base models, which can be decision trees or other machine learning algorithms. Definition and purpose The Bagging Regressor is an application of the bagging method designed for regression analysis.

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Predictive modeling

Dataconomy

Definition and overview of predictive modeling At its core, predictive modeling involves creating a model using historical data that can predict future events. Unsupervised models Unsupervised models typically use traditional statistical methods such as logistic regression, time series analysis, and decision trees.

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Categorical variables

Dataconomy

Definition and types of categorical data Categorical data can be classified into two primary types: nominal and ordinal. Algorithms supporting categorical data Some algorithms, such as decision trees, can handle categorical data without the need for extensive preprocessing.

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Support Vector Machines (SVM)

Dataconomy

This decision boundary is crucial for achieving accurate predictions and effectively dividing data points into categories. Definition of SVM SVMs operate on the principle of finding the hyperplane that maximizes the margin between different classes.