Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Natural Language Command(also: Natural Language Input, Conversational Command)
- A user input expressed in everyday spoken or written language rather than structured syntax or specific command formats. In accessibility contexts, natural language commands enable BLV users to interact with systems without memorizing precise command structures or navigating…
- Natural Language Generation(also: NLG, Text Generation)
- A subfield of artificial intelligence and computational linguistics focused on automatically producing human-readable text from structured data or other non-linguistic representations. In accessibility, natural language generation is used to create textual descriptions of visual…
- Natural Language Processing(also: NLP, Computational Linguistics)
- A branch of artificial intelligence that enables computers to understand, interpret, and generate human language. In accessibility, NLP powers voice-based assistive technologies, automatic captioning, text simplification for cognitive accessibility, and natural language query…
- Natural Language Query(also: NLQ, Conversational Query, Natural Language Search)
- An interaction paradigm where users pose questions or issue commands in everyday language rather than using structured search syntax, predefined filters, or navigation controls. In accessibility contexts, natural language querying is particularly valuable for screen reader users…
- Natural Language Understanding(also: NLU, Intent Recognition, Language Understanding)
- A branch of artificial intelligence that enables computers to interpret the meaning and intent behind human language input, rather than requiring exact predetermined phrases or commands. In accessibility contexts, NLU is valuable for voice-controlled interfaces because it allows…
- Neural Network(also: Artificial Neural Network, ANN)
- A machine learning model inspired by the structure of biological neural networks in the brain, consisting of interconnected layers of nodes (neurons) that process information by adjusting weighted connections during training. In accessibility and assistive technology, neural…
- Neural Radiance Field(also: NeRF)
- An implicit neural representation of a 3D scene, introduced by Mildenhall et al. in 2020, in which a small neural network is trained to map any 3D coordinate and viewing direction to a colour and density value. Rendering is performed by volumetric ray marching through this…
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