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You're reading from  Statistics for Machine Learning

Product typeBook
Published inJul 2017
Reading LevelIntermediate
PublisherPackt
ISBN-139781788295758
Edition1st Edition
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Pratap Dangeti
Pratap Dangeti
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Pratap Dangeti

Pratap Dangeti develops machine learning and deep learning solutions for structured, image, and text data at TCS, analytics and insights, innovation lab in Bangalore. He has acquired a lot of experience in both analytics and data science. He received his master's degree from IIT Bombay in its industrial engineering and operations research program. He is an artificial intelligence enthusiast. When not working, he likes to read about next-gen technologies and innovative methodologies.
Read more about Pratap Dangeti

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Comparison between AdaBoosting versus gradient boosting


After understanding both AdaBoost and gradient boost, readers may be curious to see the differences in detail. Here, we are presenting exactly that to quench your thirst!

The gradient boosting classifier from the scikit-learn package has been used for computation here:

# Gradientboost Classifier
>>> from sklearn.ensemble import GradientBoostingClassifier

Parameters used in the gradient boosting algorithms are as follows. Deviance has been used for loss, as the problem we are trying to solve is 0/1 binary classification. The learning rate has been chosen as 0.05, number of trees to build is 5000 trees, minimum sample per leaf/terminal node is 1, and minimum samples needed in a bucket for qualification for splitting is 2:

>>> gbc_fit = GradientBoostingClassifier (loss='deviance', learning_rate=0.05, n_estimators=5000, min_samples_split=2, min_samples_leaf=1, max_depth=1, random_state=42 ) 

>>> gbc_fit.fit(x_train...
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Statistics for Machine Learning
Published in: Jul 2017Publisher: PacktISBN-13: 9781788295758

Author (1)

author image
Pratap Dangeti

Pratap Dangeti develops machine learning and deep learning solutions for structured, image, and text data at TCS, analytics and insights, innovation lab in Bangalore. He has acquired a lot of experience in both analytics and data science. He received his master's degree from IIT Bombay in its industrial engineering and operations research program. He is an artificial intelligence enthusiast. When not working, he likes to read about next-gen technologies and innovative methodologies.
Read more about Pratap Dangeti