NDLI: Evaluating Crowd Sourced Navigation for the Visually Impaired in a Virtual Environment

Content Provider	IEEE Xplore Digital Library
Author	Khoo, W.L. Olmschenk, G. Zhigang Zhu Ro, T.
Copyright Year	2015
Description	Author affiliation: Depts. of Comput. Sci. & Psychol., City Univ. of New York - The City Coll. & the Grad. Center New York, New York, NY, USA (Khoo, W.L.; Olmschenk, G.; Zhigang Zhu; Ro, T.)
Abstract	Crowdsourcing has been shown to be a powerful method for solving a variety of problems. In this paper, we introduce an approach for allowing a crowd to help navigate a visually impaired user to their destination in real-time. Furthermore, we experiment with several approaches in aggregating and feeding back crowd data to determine the optimal method. Our approach streams live video from the visually impaired user's mobile device to a crowd of sighted volunteers. Each crowd member is able to provide their opinion on how the user should proceed and our algorithm aggregates this into a single opinion that is sent as feedback to the user. In this paper, we first present the design and implementation of our crowd sourced navigation system, including webapp design and two aggregation algorithms: averaging and league leader approaches. A virtualized user (avatar) is also developed for more controlled and repeatable testing of aggregation approaches with multiple crowd sourced volunteers. We also tested two navigation modes: a real-user controlled avatar, and a program controlled avatar. Experimental results are provided with the two aggregation methods and the two navigation modes. Our results show that we do not have significant difference between the aggregation methods and the program controlled avatar performed better than a real-user controlled avatar.
Starting Page	431
Ending Page	437
File Size	448527
Page Count	7
File Format	PDF
e-ISBN	9781467372848
DOI	10.1109/MobServ.2015.65
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Google Navigation Virtual environment Visually impaired Avatars Crowd sourcing Virtual environments Streaming media Real-time systems Mobile Testing
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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