2009 Summer Project Week GWE XNAT

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  Project Week Main Page

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  GWE: Platform to run parameter exploration experiments

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  GWE Experiment Results Browser

Key Investigators

• UCSD: Marco Ruiz
• WU: Dan Marcus

Objective

• Collect specifications for P2EL macros/functions to upload data into XNAT systems.
• Review and refine production P2EL macros created to query XNAT systems (experiments, session, scans, images, etc.)
• Collect specifications for any other XNAT querying P2EL macros that may be useful to describe parameter exploration experiments.

Approach, Plan

• Demo current state of XNAT querying support on GWE and share vision for how researchers can benefit and use it when running parameter exploration experiments.
• Discuss usability/feasibility of the vision to set a practical direction for this integration effort.
• Gather specs for the XNAT REST API to implement data upload and for the modications/additions of P2EL macros.
• Gather information about future modifications/gray areas on the XNAT REST API so can be considered in this integration effort.

Progress

• GWE 0.7.3.alpha (latest release) includes a P2EL macro library to support common querying operations.
• Some of these macros are currently misbehaving due to minor changes in the XNAT REST API. A "patch release" will be released before the project week to accomodate these changes.

References

• GWE Project Site: http://www.gridwizardenterprise.org
• P2EL Macros: http://www.gridwizardenterprise.org/guides/p2el-macros.html
• P2EL Macro Library for XNAT: http://www.gridwizardenterprise.org/svn/gwe/gwe-core/trunk/src/main/config/base/gwe-macros/xnat.p2el
• XNAT: http://www.xnat.org/
• XNAT REST API: http://nrg.wikispaces.com/XNAT+REST+API+Usage