Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- MIDI(also: Musical Instrument Digital Interface)
- A technical standard for communication between electronic musical instruments, computers, and related audio devices. MIDI transmits digital messages representing musical events like note-on, note-off, velocity, and control changes rather than audio signals. Because MIDI data is…
- MLLM(also: Multimodal LLM, Multimodal Large Language Model)
- A large language model extended to accept and reason over multiple input modalities — typically images and text, and sometimes audio or video — in addition to producing natural-language output. Examples include OpenAI's GPT-4o, Anthropic's Claude, and Google's Gemini. In…
- Machine Learning(also: ML)
- A branch of artificial intelligence in which computer systems learn patterns from data to make predictions or decisions without being explicitly programmed for each scenario. In accessibility contexts, machine learning is used for a wide range of applications: predicting…
- Math OCR(also: Mathematical OCR, Scientific Document Recognition)
- Optical character recognition technology specifically designed to recognize and convert mathematical expressions, formulas, and scientific notation from printed or PDF documents into accessible digital formats such as LaTeX, MathML, or Microsoft Word. Standard OCR software…
- Mobile Phone(also: Cell Phone, Cellular Phone, Mobile)
- A mobile phone is a portable radio-telephone that connects to the public telephone network over cellular radio infrastructure. In digital-accessibility practice mobile phones are both an accessibility tool and an accessibility barrier: they are a primary delivery mechanism for…
- Motion Tracking(also: Motion Capture, MoCap, Body Tracking)
- Technology that records and analyses the movement of people or objects in real time, typically using cameras, sensors, or wearable devices to capture position, orientation, and velocity data. In accessibility applications, motion tracking enables systems to compare a user's body…
- Music Information Retrieval(also: MIR)
- An interdisciplinary field focused on extracting, analyzing, and organizing information from music data. Music information retrieval encompasses tasks like automatic transcription, genre classification, melody extraction, beat tracking, and music recommendation. For…
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