Publications

Up to a Limit?: Privacy Concerns of Bystanders and Their Willingness to Share Additional Information with Visually Impaired Users of Assistive Technologies

Published in Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, Volume 2, Issue 3, 2018

The emergence of augmented reality and computer vision based tools offer new opportunities to visually impaired persons (VIPs). Solutions that help VIPs in social interactions by providing information (age, gender, attire, expressions etc.) about people in the vicinity are becoming available. Although such assistive technologies are already collecting and sharing such information with VIPs, the views, perceptions, and preferences of sighted bystanders about such information sharing remain unexplored. Although bystanders may be willing to share more information for assistive uses it remains to be explored to what degree bystanders are willing to share various kinds of information and what might encourage additional sharing of information based on the contextual needs of VIPs. In this paper we describe the first empirical study of information sharing preferences of sighted bystanders of assistive devices.

Recommended citation: Ahmed, T., Kapadia, A., Potluri, V., & Swaminathan, M. (2018). Up to a Limit?: Privacy Concerns of Bystanders and Their Willingness to Share Additional Information with Visually Impaired Users of Assistive Technologies. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 2(3), 89. https://dl.acm.org/citation.cfm?id=3264899

CodeTalk: Improving Programming Environment Accessibility for Visually Impaired Developers

Published in Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems, 2018

In recent times, programming environments like Visual Studio are widely used to enhance programmer productivity. However, inadequate accessibility prevents Visually Impaired (VI) developers from taking full advantage of these environments. In this paper, we focus on the accessibility challenges faced by the VI developers in using Graphical User Interface (GUI) based programming environments. Based on a survey of VI developers and based on two of the authors personal experiences, we categorize the accessibility difficulties into Discoverability, Glanceability, Navigability, and Alertability. We propose solutions to some of these challenges and implement these in CodeTalk, a plugin for Visual Studio. We show how CodeTalk improves developer experience and share promising early feedback from VI developers who used our plugin.

Recommended citation: Potluri, V., Vaithilingam, P., Iyengar, S., Vidya, Y., Swaminathan, M., & Srinivasa, G. (2018, April). CodeTalk: Improving Programming Environment Accessibility for Visually Impaired Developers. In Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems (p. 618). ACM. https://dl.acm.org/citation.cfm?id=3174192

Significance of Paralinguistic Cues in the Synthesis of Mathematical Equations

Published in International Conference on Natural Language Processing, 2014

Text to speech (TTS) systems hold promise as an information access tool for literate and illiterate including visually impaired. Current TTS systems can convert a typical text into a natural sounding speech. However, auditory rendering of mathematical content, specifically equation reading is not a trivial task. Mathematical equations have to be read so that appropriate bracketing such as parentheses, superscripts and subscripts are conveyed to the listener in an accurate way. In this paper, we first analyse the acoustic cues which humans employ while speaking the mathematical content to (visually impaired) listeners and then propose four techniques which render the observed patterns in a text-to-speech system.

Recommended citation: Potluri.V, Rallabandi.S, Srivaastava.P and Prahallad.k. (2014). "Significance of Paralinguistic Cues in the synthesis of Mathematical Equations" International Conference on Natural Language Processing