Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Principal Component Analysis(also: PCA)
- A statistical technique that reduces the dimensionality of data by identifying the principal axes of variation in a dataset. In accessibility and assistive technology contexts, PCA is commonly used in face recognition systems (as the basis of the Eigenfaces method), gesture…
- Pseudonymization(also: Pseudonymisation, De-identification)
- A privacy technique in which personally identifying fields are replaced with artificial identifiers — typically hashes, tokens, or randomly assigned IDs — so that the data can no longer be attributed to a specific person without additional information kept separately. Recognised…
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