Hash Table : A hash table is a data structure that allows for efficient insertion, retrieval, and deletion of data. This is achieved by using a function, called a hash function, to map data to a specific index within the table. The function takes in the data as input and outputs a unique integer that […]

Harris and Stevens Forecasting : Harris and Stevens forecasting is a method used to predict the future demand for a product or service. This method uses historical data and statistical techniques to determine the likely demand in the future. One example of Harris and Stevens forecasting is in the airline industry. Airlines often use this […]

Harmonic Mean : Harmonic mean is a type of average used to calculate the central tendency of a set of numbers. It is calculated by taking the reciprocal of each number in the set, adding them together, and then taking the reciprocal of the sum. One example of using harmonic mean is in calculating the […]

Halo Effect : The halo effect is a cognitive bias that occurs when an individual’s overall impression of a person, company, brand, or product influences their feelings and thoughts about that entity’s specific traits or characteristics. This means that if someone has a positive overall impression of something, they are more likely to have positive […]

Hankel Matrix : A Hankel matrix is a square matrix with constant values along the anti-diagonals, starting from the second diagonal. It is a special type of Toeplitz matrix, which has constant values along the diagonals. Hankel matrices are commonly used in signal processing and other areas of applied mathematics. For example, consider the following […]

Hanging Rootogram : A hanging rootogram is a type of data visualization tool used to represent and analyze the distribution of a particular set of data. It is similar to a histogram, but instead of the bars being placed side-by-side, they are positioned one above the other, with the tallest bar representing the most frequent […]

Half-normal Plot : A half-normal plot is a graphical representation of data that is used to evaluate the symmetry and normality of a statistical distribution. It is a helpful tool for identifying potential outliers and determining the underlying distribution of a dataset. To create a half-normal plot, the data is first sorted in ascending order. […]

Half-mode : Half-mode is a concept in probability that refers to the most likely value or outcome of a random event. In other words, it is the value that has the highest probability of occurring in a given situation. To understand half-mode, it is important to first understand the concept of mode in probability. The […]

Hadoop : Hadoop is an open-source framework that enables the distributed processing of large data sets across clusters of computers using simple programming models. It is designed to scale up from single servers to thousands of machines, each offering local computation and storage. One of the key features of Hadoop is its ability to store […]