Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 118 of 333
- Eyes-Free Interaction (Eyes-Free, Eyes-Free Gaming, Eyes-Free Interface)
- Eyes-free interaction refers to the use of digital systems and interfaces without relying on visual output, using alternative modalities such as audio, haptic feedback, or speech. In gaming contexts, …
- Eyes-free Interaction (Eyes-free Input, Nonvisual Interaction, Eyes-free Interface)
- Interaction techniques that allow users to operate devices without looking at the screen or interface. Eyes-free interaction is essential for people who are blind, but also benefits sighted users in c…
- Eyes-free interaction (Eyes-free interface, Non-visual interaction)
- An interaction paradigm in which users operate technology without relying on visual feedback, instead receiving information through auditory, haptic, or other non-visual channels. Eyes-free interfaces…
- F-Droid
- A catalogue and package repository for free and open-source Android applications, used as an alternative to Google Play, with every app built and signed from publicly auditable source code. Accessibil…
- F-measure (F-score, F1 Score)
- A metric that combines correctness (precision) and sensitivity (recall) into a single balanced score, calculated as the harmonic mean of the two values. In accessibility evaluation research, the F-mea…
- FAIR Principles (FAIR Data Principles, Findable Accessible Interoperable Reusable)
- The FAIR Principles are a set of guidelines for making digital data and resources Findable, Accessible, Interoperable, and Reusable. Developed by an international consortium and published in 2016, the…
- FATE Framework (FATE, Fairness Accountability Transparency Ethics)
- An ethical framework for evaluating AI and machine learning systems across four dimensions: Fairness (ensuring equitable treatment and outcomes across different groups), Accountability (establishing r…
- FERPA (Family Educational Rights and Privacy Act, Buckley Amendment)
- A United States federal law enacted in 1974 that protects the privacy of student education records. FERPA gives parents and eligible students (those over 18 or attending postsecondary education) right…
- FOSTA-SESTA (Allow States and Victims to Fight Online Sex Trafficking Act, Stop Enabling Sex Traffickers Act)
- U.S. federal legislation (2018) that amended Section 230 of the Communications Decency Act to make online platforms liable for user content that facilitates sex trafficking. While intended to combat t…
- FPGA (Field-Programmable Gate Array)
- An integrated circuit that can be configured by the user after manufacturing to implement custom digital logic. FPGAs contain an array of programmable logic blocks and interconnects that can be reprog…
- Fabrication (AI Fabrication, Confabulation)
- An AI error where the model generates content that does not exist in the input, such as describing objects not present in an image, inventing text that does not appear in a document, or creating detai…
- Face Detection (Face Recognition, Facial Detection)
- A computer vision technology that identifies and locates human faces within digital images or video frames, typically providing bounding box coordinates around each detected face. Face detection serve…
- Face Recognition (Facial Recognition, Face Detection)
- A technology that uses computer vision and machine learning to identify or verify a person by analysing their facial features from images or video. In accessibility contexts, face recognition has sign…
- Face Swap (Face Transformation, Face Replacement)
- A technology that replaces the face of a person in a video or image with a different face while attempting to preserve the original person's facial expressions, head movements, and lip synchronization…
- Face Tracking (Facial Tracking, Face Detection and Tracking)
- A computer vision technology that detects and follows the position and movement of a user's face in real time using a camera or depth sensor. In accessibility, face tracking enables hands-free compute…
- FaceReader (Noldus FaceReader)
- A commercial facial-expression recognition software (developed by Noldus) that uses computer vision and deep learning to automatically classify faces into basic emotions (neutral, happy, sad, angry, s…
- Faceted Navigation (Faceted Search, Faceted Browsing, Faceted Filtering)
- A navigation technique that allows users to filter and explore content along multiple dimensions or categories simultaneously, such as by topic, sentiment, date, or rating. In accessibility contexts, …
- Facial Action Coding System (FACS)
- A comprehensive, anatomically based system for describing all visually discernible facial movements, originally developed by Paul Ekman and Wallace Friesen in 1977. FACS decomposes facial expressions …
- Facial Action Unit (Action Unit, AU, FACS Action Unit)
- A component of the Facial Action Coding System (FACS) that represents a specific movement or position of facial muscles. Each action unit corresponds to a distinct facial movement, such as raising the…
- Facial Affect (Facial Expression of Emotion, Emotional Facial Expression)
- The display of emotion through facial movements, including changes in the position of the eyebrows, eyes, mouth, and other facial features that communicate a person's emotional or mental state. Facial…