Exploiting structured human interactions to enhance estimation accuracy in cyber-Physical systems

Yunlong Gao, Shaohan Hu, Renato Mancuso, Hongwei Wang, Minje Kim, Po Liang Wu, Lu Su, Lui Sha, Tarek Abdelzaher

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we describe a general methodology for enhancing measurement accuracy in cyber-physical systems that involve structured human interactions with a noisy physical environment. We define structured human interactions as those that follow a domain-specific workflow. The idea of the paper is simple: We exploit knowledge of the workflow to correct unreliable sensor data. The intellectual contribution lies in an algorithm for joint estimation of the current state of the workflow together with correction of noisy sensor measurements, given only the noisy measurements and an overall workflow description. We demonstrate through simulations and a physical implementation the degree to which knowledge of workflow can increase sensing accuracy. As a specific instantiation of this idea, we present a novel situation-awareness tool called the Emergency Transcriber designed to automatically document operational procedures followed by teams of first responders in emergency-response scenarios. Evaluation shows that our system provides a significant fidelity enhancement over the state of the art, effectively coping with the noisy environment of emergency teams.

Original languageEnglish (US)
Title of host publicationACM/IEEE 6th International Conference on Cyber-Physical Systems, ICCPS 2015
PublisherAssociation for Computing Machinery, Inc
Pages60-69
Number of pages10
ISBN (Electronic)9781450334556
DOIs
StatePublished - Apr 14 2015
Event6th ACM/IEEE International Conference on Cyber-Physical Systems, ICCPS 2015 - Seattle, United States
Duration: Apr 14 2015Apr 16 2015

Publication series

NameACM/IEEE 6th International Conference on Cyber-Physical Systems, ICCPS 2015

Other

Other6th ACM/IEEE International Conference on Cyber-Physical Systems, ICCPS 2015
CountryUnited States
CitySeattle
Period4/14/154/16/15

Keywords

  • Emergency
  • Unreliable sensor data
  • Workflow

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture

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