Accessible Non-visual Diagrams through Natural Language
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This paper describes the design and validation of a num-ber of HCI techniques that enable more effective non-visual access to diagrammatically displayed data through an adapted Natural Language Interface (NLI). These techniques have been incorporated into an acces-sible web-based NLI to diagrams prototype and qualitatively evaluated with blind persons for solving disparate analytical and navigational tasks supported by diagrams. Each technique is described and validation re-sults discussed.