Authors: Jia Zhang; Chris Lee; Petr Votava; Tsengdar J. Lee; Ramakrishna Nemani; Ian Foster
Addresses: Carnegie Mellon University – Silicon Valley, Mountain View, CA 94035, USA ' Carnegie Mellon University – Silicon Valley, Mountain View, CA 94035, USA ' NASA Ames Research Center, Mountain View, CA 94035, USA ' Science Mission Directorate, NASA Headquarters, USA ' NASA Ames Research Center, Mountain View, CA 94035, USA ' University of Chicago and Argonne National Lab, Chicago, IL 60637, USA
Abstract: NASA Earth Exchange (NEX) is a collaborative compute platform aiming to improve the availability of Earth science data, models, analysis tools and scientific results through a centralised environment that fosters knowledge sharing, collaboration, innovation and direct access to compute resources. One of the main objectives of NEX is to help Earth scientists leverage and reuse various data processing software modules developed by their peers, in order to quickly run value-added executable experiments (workflows). Toward this goal, this paper reports our efforts of leveraging social network analysis to intelligently extract hidden information from data processing workflows. By modelling Earth science workflow modules as social entities and their dependencies as social relationships, this research opens up new vistas for applying social science to facilitate software reuse and distributed workflow development. As a proof of concept, a prototyping system has been developed as a plug-in to the NEX workflow design and management system (VisTrails) to aid Earth scientists in discovering and reusing workflow modules and extending them to solve more complex science problems.
Keywords: scientific workflows; social networking; community-oriented workflow reuse; recommendation systems; recommender systems; earth science data; knowledge sharing; collaboration; innovation; data processing; software modules; social network analysis; SNA; hidden information; information extraction; modelling; social sciences; software reuse; distributed workflow development.
International Journal of Business Process Integration and Management, 2015 Vol.7 No.3, pp.197 - 212
Received: 17 Mar 2014
Accepted: 17 Nov 2014
Published online: 18 Aug 2015 *