Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- N-gram(also: Bigram, Trigram, Unigram)
- A contiguous sequence of n items (typically words) from a text, used in language modeling to predict the probability of a word based on its predecessors. A unigram considers single words in isolation, a bigram considers pairs of consecutive words, and a trigram considers…
- Named Entity Recognition(also: NER)
- A natural language processing technique that identifies and classifies named entities in text into predefined categories such as person names, locations, organizations, quantities, and domain-specific terms. In accessibility applications, NER can be used to extract meaningful…
- 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…
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