SMAP: A Joint Dimensionality Reduction Scheme for Secure Multi-Party Visualization

Jiazhi Xia, Tianxiang Chen, Lei Zhang, Wei Chen, Yang Chen, Xiaolong Zhang, Cong Xie, Tobias Schreck

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Nowadays, as data becomes increasingly complex and distributed,
data analyses often involve several related datasets that are stored
on different servers and probably owned by different stakeholders.
While there is an emerging need to provide these stakeholders with
a full picture of their data under a global context, conventional
visual analytical methods, such as dimensionality reduction, could
expose data privacy when multi-party datasets are fused into a
single site to build point-level relationships. In this paper, we
reformulate the conventional t-SNE method from the single-site
mode into a secure distributed infrastructure. We present a secure
multi-party scheme for joint t-SNE computation, which can minimize the risk of data leakage. Aggregated visualization can be
optionally employed to hide disclosure of point-level relationships.
We build a prototype system based on our method, SMAP, to
support the organization, computation, and exploration of secure
joint embedding. We demonstrate the effectiveness of our approach with three case studies, one of which is based on the deployment of our system in real-world applications.
Original languageEnglish
Title of host publicationProceedings - 2020 IEEE Conference on Visual Analytics Science and Technology, VAST 2020
Number of pages12
ISBN (Electronic)978-1-7281-8009-0
Publication statusPublished - Oct 2020
EventIEEE VIS 2020 - Virtuell, United States
Duration: 25 Oct 202030 Oct 2020


ConferenceIEEE VIS 2020
Abbreviated titleVIS 2020
Country/TerritoryUnited States
Internet address


  • Dimensionality Reduction
  • High-Dimensional Data Visualization
  • Secure Multi-Party Computation
  • Secure Visualization

ASJC Scopus subject areas

  • Media Technology
  • Modelling and Simulation

Fields of Expertise

  • Information, Communication & Computing


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