A NoSQL database is distinguished mainly by what it is not -
A similarity matrix shows how similar records are to each other.
Predictive modeling is the process of using a statistical or machine learning model to predict the value of a target variable (e.g. default or no-default) on the basis of a series of predictor variables (e.g. income, house value, outstanding debt, etc.).
A hold-out sample is a random sample from a data set that is withheld and not used in the model fitting process. After the model...
Heteroscedasticity generally means unequal variation of data, e.g. unequal variance. More specifically,
Goodness-of-fit measures the difference between an observed frequency distribution and a theoretical probability distribution which
The geometric mean of n values is determined by multiplying all n values together, then taking the nth root of the product. It is useful in taking averages of ratios.