AUDiaL: A Natural Language Interface to Make Statistical Charts Accessible to Blind Persons

Tomás Murillo-Morales · Klaus Miesenberger

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Digital Accessibility for Disabilities Data Visualization and Analytics Tactile and Sensory Interactions

Abstract

Abstract This paper discusses the design and evaluation of AUDiaL (Accessible Universal Diagrams through Language). AUDiaL is a web-based, accessible natural language interface (NLI) prototype that allows blind persons to access statistical charts, such as bar and line charts, by means of free-formed analytical and navigational queries expressed in natural language. Initial evaluation shows that NLIs are an innovative, promising approach to accessibility of knowledge representation graphics, since, as opposed to traditional approaches, they do not require of additional software/hardware nor user training while allowing users to carry out most tasks commonly supported by data visualization techniques in an efficient, natural manner.

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2006Nasa-Task Load Index (NASA-TLX); 20 Years Later 2014Design Science Methodology for Information Systems and Software Engineering 2013Evaluating a Tool for Improving Accessibility to Charts and Graphs 2010Interactive SIGHT into information graphics

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2023Understanding the Accessibility Barriers Faced by Learners with Visual Impairments in Computer Programming 2023Mathematical Content Browsing for Print-disabled Readers Based on Virtual-world Exploration and Audio-visual Sensory Substitution 2022Effective Non-visual Access to Diagrams via an Augmented Natural Language Interface 2023A Systematic Mapping Study on Accessibility in Data Visualizations for Visually Impaired Users 2026Towards Inclusive Data Visualization: Investigating Accessibility in Scientific and Technical Charts

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