UrbanCPS: A cyber-Physical system based on multi-Source big infrastructure data for heterogeneous model integration

Desheng Zhang, Tian He, Juanjuan Zhao, Fan Zhang

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

27 Scopus citations

Abstract

Data-driven modeling usually suffers from data sparsity, especially for large-scale modeling for urban phenomena based on single-source urban infrastructure data under fine-grained spatial-temporal contexts. To address this challenge, we motivate, design and implement UrbanCPS, a cyber-physical system with heterogeneous model integration, based on extremely-large multi-source infrastructures in a Chinese city Shenzhen, involving 42 thousand vehicles, 10 million residents, and 16 million smartcards. Based on temporal, spatial and contextual contexts, we formulate an optimization problem about how to optimally integrate models based on highly-diverse datasets, under three practical issues, i.e., heterogeneity of models, input data sparsity or unknown ground truth. We further propose a real-world application called Speedometer, inferring real-time traffic speeds in urban areas. The evaluation results show that compared to a state-of-the-art system, Speedometer increases the inference accuracy by 21% on average.

Original languageEnglish (US)
Title of host publicationACM/IEEE 6th International Conference on Cyber-Physical Systems, ICCPS 2015
PublisherAssociation for Computing Machinery, Inc
Pages238-247
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

  • Cyber-physical system
  • Model integration

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    Zhang, D., He, T., Zhao, J., & Zhang, F. (2015). UrbanCPS: A cyber-Physical system based on multi-Source big infrastructure data for heterogeneous model integration. In ACM/IEEE 6th International Conference on Cyber-Physical Systems, ICCPS 2015 (pp. 238-247). (ACM/IEEE 6th International Conference on Cyber-Physical Systems, ICCPS 2015). Association for Computing Machinery, Inc. https://doi.org/10.1145/2735960.2735985