Category: data sci

What is confusion matrix?

Confusion matrix is a table which contains information about predicted values and actual values in a classification model It has four parts namely true positive ,true negative, false positive and false negative It can be used to...

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What is hypothesis testing?

While performing the an experiment hypothesis testing to is used to analyze the various factors that are assumed to have an impact on the outcome of experiment An hypothesis is some kind of assumption and hypothesis testing is...

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What is gradient descent?

When building a statistical model the objective is reduce the value of the cost function that is associated with the model. Gradient descent is an iterative optimization technique used to determine the minima of the cost...

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