In machine learning, normalization is a statistical technique by which the data in a dataset are transformed to have values in a normal (Gaussian) distribution, in the value range of [0,1] or in the value range of [-1. 1]. For each value x in the dataset, its corresponding normalized value x' is calculated in the ... Read more


NoSQL databases are also known as as non-SQL databases. They are different than relational (SQL) databases and do not feature the SQL model with rows and tables. The following types of NoSQL databases are available. Examples of NoSQL databases are the following: