What is the True Positive Rate? The True Positive Rate (Sensitivity, Recall, Power) is a performance metric that measures the probability that your model will predict positive when the true value is positive. It is closely related to the True Negative Rate, which is completely analogous. The False Negative Rate and…
What is Youden’s Index? Youden’s Index (also known as Youden’s J Statistic or J) is a performance metric that evaluates the performance of a binary classification model. Its value ranges from 0 to 1. When the value is at its minimum of zero, the model is useless. When its value…
What is the prevalence? Prevalence is a measure of how common a phenomenon is present within a population at a specific time point or within a specified time period. The impact of the prevalence on the Accuracy, the Positive Predictive Value and the Negative Predictive Value cannot be understated. As…
What is Self-Service Analytics? Self-service analytics is a specific type of business intelligence (BI) in which business professionals have the responsibility to perform queries, analyze data, and generate reports, without the need for a technical set of skills. The advantage of self-service analytics is that analysis of data is no…