research-article

Card-stunt as a Service: Empowering a Massively Packed Crowd for Instant Collective Expressiveness

Authors:

Myung-Chul Kim,

Junehwa SongAuthors Info & Claims

MobiSys '17: Proceedings of the 15th Annual International Conference on Mobile Systems, Applications, and Services

Pages 121 - 135

https://doi.org/10.1145/3081333.3081357

Published: 16 June 2017 Publication History

Abstract

Imagine a densely packed crowd that gathers to convey a common message, such as people in a candlelight vigil or a protest. We envision an innovation through mobile computing technologies to empower such a crowd by enabling them simply to hold their phones up and create a massive collective visualization on top of them. We propose Card-stunt as a Service (CaaS). CaaS is a service enabling a densely packed crowd to instantly visualize symbols using their mobile devices and a server-side service. The key challenge toward realizing an instant collective visualization is how to achieve instant, infrastructure-free, decimeter-level localization of individuals in a massively packed crowd, while maintaining low latency. CaaS addresses the challenges by mobile visible-light angle-of-arrival (AoA) sensing and scalable constrained optimization. It reconstructs relative locations of all individuals and dispatches individualized timed pixels to each one so that they can do their part in the overall visualization. We evaluate CaaS with extensive experiments under diverse reality settings as well as under synthetic workloads scaling up to tens of thousands of people. We deploy CaaS to 49 participants so that they successfully perform a collective visualization cheering up MobiSys.

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Index Terms

Card-stunt as a Service: Empowering a Massively Packed Crowd for Instant Collective Expressiveness
1. Human-centered computing
  1. Collaborative and social computing
    1. Collaborative and social computing theory, concepts and paradigms
      1. Collaborative content creation
      2. Computer supported cooperative work
  2. Ubiquitous and mobile computing
    1. Ubiquitous and mobile computing systems and tools
2. Information systems
  1. Information systems applications
    1. Mobile information processing systems
    2. Spatial-temporal systems

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cover image ACM Conferences

MobiSys '17: Proceedings of the 15th Annual International Conference on Mobile Systems, Applications, and Services

June 2017

520 pages

ISBN:9781450349284

DOI:10.1145/3081333

General Chairs:
Tanzeem Choudhury
Cornell University, USA
,
Steve Ko
University at Buffalo, USA
,
Program Chairs:
Andrew Campbell
Dartmouth College, USA
,
Deepak Ganesan
University of Massachusetts, USA

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Published: 16 June 2017

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MobiSys'17: The 15th Annual International Conference on Mobile Systems, Applications, and Services

June 19 - 23, 2017

New York, Niagara Falls, USA

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MobiSys '17 Paper Acceptance Rate 34 of 188 submissions, 18%;

Overall Acceptance Rate 274 of 1,679 submissions, 16%

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