Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Visual Dialogue(also: Visual Dialog, VisDial)
- Visual dialogue is an AI task that involves holding a multi-turn natural language conversation about visual content such as an image or video frame. Unlike single-turn visual question answering (VQA), visual dialogue systems maintain context across multiple exchanges, using…
- Visualization Question Answering(also: Chart QA, Visualization QA, VisQA)
- A class of interactive systems that let users ask natural-language questions about a data visualization — a chart, graph, or map — and receive direct textual or spoken answers rather than having to interpret the visualization themselves. Visualization QA systems typically…
- Viterbi Algorithm
- The Viterbi algorithm is a dynamic-programming procedure for finding the most likely sequence of hidden states in a Hidden Markov Model given a sequence of observations. It is the standard solution to part-of-speech tagging, many speech-recognition tasks, and decoding problems…
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