Query: A query is a question or request for information. In data science, a query is a request for data that meets certain criteria. For example, you might want to know how many people live in your city or what the average temperature is in December. To answer a query, you need to have the right data and know how to use it.
Definition of Normalization Normalization: Normalization is the process of standardizing data so that it has a consistent meaning across different data sets. This can be done by ensuring that all values in a data set are within a certain range, or by converting all data to a single numerical representation. Normalization can make it easier…
Definition of Mathematical Statistics Mathematical Statistics: Mathematical statistics is a branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organization of data. It also provides techniques for estimating properties of populations from samples. Mathematical statistics is distinguished from other statistical techniques in that it relies on mathematical theory as a foundation. What…
Definition of Latent Variable Latent Variable: Latent Variable: In statistics, a latent variable is a hypothetical construct that explains the observed variability in a set of measured variables. Latent variables are unobservable or hidden variables that cannot be directly measured, but rather must be inferred from other observed variables. How is a Latent Variable used?…
Definition of AngularJS AngularJS is a JavaScript framework for building web applications. It lets you use HTML as your template language, and extends the HTML vocabulary to provide directives for defining your application’s user interface. It also provides a model–view–controller (MVC) framework that helps you structure and manage your application code. What is AngularJS used…
Definition of One-hot encoding One-hot encoding: One-hot encoding is a technique used in machine learning to represent categorical variables as a vector of binary values. In one-hot encoding, each category is represented by a unique integer value, and the remaining values are set to 0. For example, if there are three categories, A, B, and…
Definition of Entropy Entropy: Entropy is a measure of the unpredictability of a system. In information theory, entropy ( ) is a measure of the uncertainty associated with a random variable. Entropy is defined as the average amount of information that is not known about the value of a random variable. When is Entropy used?…