Equational unification - Equational unification finds substitutions for variables that make two symbolic expressions equal according to a specified collection of equations.
Equi-join - An equi-join combines rows from two relations or tables using equality comparisons between specified values.
Equivalence test - An equivalence test assesses whether an effect lies within prespecified bounds representing differences small enough to be considered practically...
Error cost function - An error cost function assigns a loss or cost to a forecasting error.
Error-driven learning - Error-driven learning adjusts a model using a discrepancy between its output and a desired or observed outcome.
Error exponent - An error exponent describes how quickly an error probability decreases on an exponential scale as the amount of information or the block length grows.
Error level analysis - Error level analysis, or ELA, is an image-inspection technique that visualizes differences between a lossy-compressed image and a recompressed version of it.
Error propagation - Error propagation is the way an error or uncertainty in one part of a process affects later calculations, predictions, or decisions.
Error rate - Error rate is the proportion of evaluated units counted as incorrect under a defined rule.
Error rate per comparison ( PC ) - Error rate per comparison is the probability of falsely rejecting the null hypothesis for a particular comparison when that null is true.
Error (Statistical error) - Statistical error is the difference between a value obtained through data collection or estimation and the corresponding true population value or other...
Error variance - Error variance is the variance of the error term in a specified statistical model.
Errors of prediction - Errors of prediction are the differences between observed outcomes and their corresponding predicted values.
Essential matrix - The essential matrix is a three-by-three matrix that represents the epipolar relationship between two calibrated camera views.
Estimand - An estimand is the precise quantity that a study aims to learn about.
Estimate - An estimate is a value calculated from observed data to represent an unknown quantity, such as a population mean, proportion, total, or model parameter.
Estimation - Estimation is the process of using observed data to infer unknown quantities, such as population characteristics or model parameters.
Estimation error - Estimation error is the discrepancy between an estimated quantity and its true or explicitly defined target.
Estimation of distribution algorithm - An estimation of distribution algorithm, or EDA, is an optimization method that learns a probability model of promising candidate solutions and samples that...
Eta squared ( h 2 ) - Eta squared, conventionally written eta squared or η², is an effect-size measure based on the proportion of total observed variation attributed to a...
Ethics by design - Ethics by design is an approach that incorporates ethical considerations into the purpose, requirements, development, deployment, and ongoing management of...
Ethics of artificial intelligence - Ethics of artificial intelligence is the study and practice of evaluating what ought to be done when AI is designed, developed, deployed, and used.
ETL - ETL stands for extract, transform, load: a data integration process that retrieves data from sources, changes it into a required form, and loads the...
Euclidean distance - Euclidean distance is the straight-line distance between two points in a Euclidean space.
Euclidean norm - The Euclidean norm is the usual length of a real vector, calculated as the square root of the sum of its squared coordinates.
Euclidean space - A Euclidean space is a space of points or vectors equipped with the familiar geometry of lengths, angles and perpendicularity.
Euclidean transformation - A Euclidean transformation preserves distances and angles while changing the position or orientation of a geometric object.
Euler angle - An Euler angle is one of a sequence of angles used to describe a three-dimensional orientation through successive rotations about specified axes.
Euler tour technique - The Euler tour technique represents a tree as an ordered traversal that follows every tree edge in both directions.
Eulerian - A graph is Eulerian when it has a circuit that traverses every edge exactly once and returns to its starting vertex.
Eulerian video magnification - Eulerian video magnification is a video-processing technique that makes subtle changes over time easier to see by amplifying selected temporal variations at...
Evaluation - Evaluation is the systematic assessment of an AI model, output, or complete system against defined purposes and criteria.
Evaluation Bias - Evaluation bias arises when the data, benchmarks, measurements, or assessment procedures used to judge an AI system do not support an accurate picture of...
Evaluation function - An evaluation function is a rule or program that assigns a value to something being assessed.
Evaluation machine learning pipeline - An evaluation machine learning pipeline, in the ITU telecommunications context, connects ML pipeline functions with simulated network functions and served...
Evaluation metric - An evaluation metric is a defined measure used to summarize an aspect of a model's or system's performance.
Evaluation of binary classifiers - Evaluation of binary classifiers measures how well a system distinguishes between two outcome classes.
Evaluation of machine translation - Evaluation of machine translation is the systematic assessment of automatically translated text or translation systems.
Evaluator agent - An evaluator agent is an AI component whose job is to judge the output of another AI component: scoring, checking or critiquing it so weak results can be...
Even - Rodeh coding - Even - Rodeh coding is a self-delimiting binary code for nonnegative integers associated with Shimon Even and Michael Rodeh.
Event - In probability, an event is a collection of possible outcomes to which the probability model assigns a probability.
Event calculus - The event calculus is a family of logic-based formalisms for representing events, their effects and what holds at different times.
Event - condition - action - Event - condition - action, or ECA, is a structure for reactive rules: when a specified event occurs, test a condition and perform an action if that...
Event correlation - Event correlation is the process of connecting event records that may belong to the same activity, incident, or operational pattern.
Event extraction - Event extraction is the process of identifying events described in text and representing selected information about them in a structured form.
Event store - An event store is a persistent repository for ordered records of events that have occurred.
Event tree analysis - Event tree analysis is a forward-looking method for tracing possible outcomes after an initiating event.