# Algorithms

Terms related to procedures or formulas for solving a problem by conducting a sequence of specified actions. In computing, algorithms in the form of mathematical instructions play an important part in search, artificial intelligence (AI) and machine learning.- pascal - The pascal (Pa) is the unit of pressure or stress in the International System of Units (SI).
- perceptron - A perceptron is a simple model of a biological neuron in an artificial neural network.
- point-to-point graph (line graph) - A point-to-point graph, also called a line graph, is a pictorial rendition of data in which specific values of a function are plotted as dots on a coordinate plane.
- prediction error - A prediction error is the failure of some expected event to occur.
- prime number - A prime number is a whole number greater than 1 whose only factors are 1 and itself.
- pseudo-random number generator (PRNG) - A pseudo-random number generator (PRNG) is a program written for, and used in, probability and statistics applications when large quantities of random digits are needed.
- Q format - Q (number) format is a fixed-point method of coding fractional and whole integers for processing by a computer’s CPU or a digital signal processor (DSP).
- random numbers - As the term suggests, a random number is a number chosen by chance -- i.
- recurrent neural networks - A recurrent neural network (RNN) is a type of artificial neural network commonly used in speech recognition and natural language processing.
- Rijndael - Rijndael (pronounced rain-dahl) is an Advanced Encryption Standard (AES) algorithm.
- round robin - A round robin is an arrangement of choosing all elements in a group equally in some rational order, usually from the top to the bottom of a list and then starting again at the top of the list and so on.
- rounding error - Rounding error is the difference between a rounded-off numerical value and the actual value.
- RSA algorithm (Rivest-Shamir-Adleman) - The RSA algorithm (Rivest-Shamir-Adleman) is the basis of a cryptosystem -- a suite of cryptographic algorithms that are used for specific security services or purposes -- which enables public key encryption and is widely used to secure sensitive data, particularly when it is being sent over an insecure network, such as the internet.
- second (s or sec) - The second (s or sec) is the International System of Units (SI) unit of time measurement.
- self-service business intelligence (self-service BI) - Self-service business intelligence (BI) is an approach to data analytics that enables business users to access and explore data sets even if they don't have a background in BI or related functions such as data mining and statistical analysis.
- space - Space is a term that can refer to various phenomena in science, mathematics and computing and generally encompasses the concept of an area or region.
- specific gravity - Specific gravity, more formally known as relative density, is a measure of the density of a substance in comparison to the density of water.
- square meter (meter squared) - The square meter, also called the meter squared, is the International System of Units (SI) unit of area.
- standing wave ratio (SWR) - Standing wave ratio (SWR) is the ratio of the maximum magnitude or amplitude of a standing wave to its minimum magnitude.
- statistical analysis - Statistical analysis is the collection and interpretation of data in order to uncover patterns and trends.
- STEM (science, technology, engineering, and mathematics) - STEM is an educational approach that prepares primary and secondary students for college, graduate study and careers in the fields of science, technology, engineering and mathematics (STEM).
- support vector machine (SVM) - A support vector machine (SVM) is a type of supervised learning algorithm used in machine learning to solve classification and regression tasks.
- Top searches of 2008 - What were people searching the WhatIs.
- traveling salesman problem (TSP) - The traveling salesman problem (TSP) is an algorithmic problem tasked with finding the shortest route between a set of points and locations that must be visited.
- truncation error - A truncation error is the difference between an actual and a truncated, or cut-off, value.
- truth table - A truth table is a breakdown of all the possible truth values returned by a logical expression.
- Twofish - Twofish is a symmetric-key block cipher with a block size of 128 bits and variable-length key of size 128, 192 or 256 bits.
- unique identifier (UID) - A unique identifier (UID) is a numeric or alphanumeric string that is associated with a single entity within a given system.
- unsupervised learning - Unsupervised learning is a type of machine learning (ML) technique that uses artificial intelligence (AI) algorithms to identify patterns in data sets that are neither classified nor labeled.
- vertical bar - The vertical bar ( | ) is a symbol used in mathematics, computing and other areas to represent a specific type of logic or operation, depending on its context.
- What is machine learning and how does it work? In-depth guide - Machine learning (ML) is a type of artificial intelligence (AI) focused on building computer systems that learn from data.
- x and y coordinates - X and y coordinates are, respectively, the horizontal and vertical addresses of a point in any two-dimensional (2D) space, such as a sheet of paper or a computer display screen.
- Zipf's Law - Zipf’s Law is a statistical distribution in certain data sets, such as words in a linguistic corpus, in which the frequencies of certain words are inversely proportional to their ranks.