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Tag: Mathematics

Machine Learning

The ROC – AUC curves for Classification based Model Performance Analysis

October 13, 2020October 13, 2020 No Comments

Accuracy is something which gives an intuition of model performance. i.e. ratio of number of correct predictions with respect to total sample present. But what in case of unbalanced data.Imagine a case where we need to make a model to predict click through rate over a display rate. The click trough rate used to be […]

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Machine Learning

Logistic Regression using Python

July 27, 2020October 17, 2020 No Comments

Logistic Regression is a method to create Machine Learning model for two class problems. It came out of linear regression but used to generate binary output (0 and 1) for making classifications. For example In Linear Regression we use simple linear equation as follows :- Yh = b0 + b1X1 Where X combines linearly with […]

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Data Analysis

Eigenvector represents greatest variance in case of PCA

October 31, 2018October 17, 2020 2 Comments

In case of Principal Component Analysis we project our data points on a vector in a direction of maximum variance to decrease the number of existing components. In this case we consider the direction eigenvector generated using covariance matrix as the direction of maximum variance. In this article we look into the proof of why […]

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Data Analysis

Eigen Vector and Eigen Values

October 30, 2018October 17, 2020 1 Comment

Eigen vector is the direction in a coordinate space defined by a metrics which doesn’t change its direction with metrics transformation. Eigen value is a scaler number which is multiplied with Eigen vector to give same result as Eigen vector multiplier with existing metrics. Editorial Team

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Recent Posts

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  • The ROC – AUC curves for Classification based Model Performance Analysis
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