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Plis, Sergey M. & Sarwate, Anand D. & Wood, Dylan & Dieringer, Christopher & Landis, Drew & Reed, Cory & Panta, Sandeep R. & Turner, Jessica A. & Shoemaker, Jody M. & Carter, Kim W. & Thompson, Paul & Hutchison, Kent & Calhoun, Vince D. (2016). COINSTAC: A Privacy Enabled Model and Prototype for Leveraging and Processing Decentralized Brain Imaging Data. Frontiers in Neuroscience, 10(365) Retrieved from https://doi.org/doi:10.7282/T3HD7XS1

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COINSTAC: A Privacy Enabled Model and Prototype for Leveraging and Processing Decentralized Brain Imaging Data (2016)
Sergey M. Plis, Anand D. Sarwate, Dylan Wood, Christopher Dieringer, Drew Landis, Cory Reed, Sandeep R. Panta, Jessica A. Turner, Jody M. Shoemaker, Kim W. Carter, Paul Thompson, Kent Hutchison, Vince D. Calhoun
Frontiers in Neuroscience 10(365).
Link to published version
VersionVersion of Record (VoR)
AbstractThe field of neuroimaging has embraced the need for sharing and collaboration. Data sharing mandates from public funding agencies and major journal publishers have spurred the development of data repositories and neuroinformatics consortia. However, efficient and effective data sharing still faces several hurdles. For example, open data sharing is on the rise but is not suitable for sensitive data that are not easily shared, such as genetics. Current approaches can be cumbersome (such as negotiating multiple data sharing agreements). There are also significant data transfer, organization and computational challenges. Centralized repositories only partially address the issues. We propose a dynamic, decentralized platform for large scale analyses called the Collaborative Informatics and Neuroimaging Suite Toolkit for Anonymous Computation (COINSTAC). The COINSTAC solution can include data missing from central repositories, allows pooling of both open and “closed” repositories by developing privacy-preserving versions of widely-used algorithms, and incorporates the tools within an easy-to-use platform enabling distributed computation. We present an initial prototype system which we demonstrate on two multi-site data sets, without aggregating the data. In addition, by iterating across sites, the COINSTAC model enables meta-analytic solutions to converge to “pooled-data” solutions (i.e., as if the entire data were in hand). More advanced approaches such as feature generation, matrix factorization models, and preprocessing can be incorporated into such a model. In sum, COINSTAC enables access to the many currently unavailable data sets, a user friendly privacy enabled interface for decentralized analysis, and a powerful solution that complements existing data sharing solutions.
Persistent URLhttps://doi.org/doi:10.7282/T3HD7XS1
SubjectsDecentralized processing, Privacy, Brain imaging, Data sharing, Decentralized algorithms
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