Sampling
Definition of Sampling
Sampling: Sampling is the process of selecting a subset of a population for study. This can be done randomly or using some other method such as stratified sampling.
Sampling: Sampling is the process of selecting a subset of a population for study. This can be done randomly or using some other method such as stratified sampling.
Definition of Data Lake Data Lake: A data lake is a term used in big data management to describe a storage repository that holds a large volume of raw data in its native format. The data in a data lake can be processed and analyzed by the business users who own it, without having to…
Definition of Database Design Database Design: Database design is the process of designing the structure of a database. This includes defining the tables, fields, and relationships between them. Why does Database Design matter? Database design is an important factor in any data science or machine learning environment. It lays the foundation for how data is…
Definition of Expectation Maximization Expectation Maximization: Expectation Maximization (EM): A statistical algorithm used to find the maximum likelihood estimate of a parameter in a probabilistic model. EM iteratively maximizes the expected likelihood of the data under the model, by adjusting the model’s parameters. What is Expectation Maximization used for? Expectation Maximization (EM) is a statistical…
Definition of Jacobian Jacobian: The Jacobian is a matrix that calculates the derivatives of a given function at a certain point in space. What is Jacobian used for? Jacobian is a matrix of partial derivatives used in calculus and vector calculus to help determine the local maxima or minima of a function. It is a…
Definition of Mode Mode: Mode is a statistical measure of the typical value of a data set. It is calculated by taking the sum of the data values and dividing by the number of data points. Mode is most useful when dealing with nominal data. How is Mode used? Mode is a central measure of…