Best Practice on Clean Energy: Jon Weers

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  • Best Practice on Clean Energy: Jon Weers

    1. 1. Linked Open Data on OpenEI Open Energy Information & reegle Sharing datasets to enrich content Jon Weers May 16th, 2012NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.
    2. 2. Open Energy InformationLINKED OPEN DATA: OVERVIEW http://en.openei.org (a typical website)  Stores all information in its own database  Other sites have similar design pattern => Duplication of effort and information  Both sites responsible for updating information => Potential for online community to be presented with conflicting information 2
    3. 3. Open Energy InformationLINKED OPEN DATA: OVERVIEW http://en.openei.org (a typical website)  Stores all information in its own database  Other sites have similar design pattern => Duplication of effort and information  Both sites responsible for updating information => Potential for online community to be presented with conflicting information Using data from another site requires you to download a copy of it to install into your database. 3
    4. 4. Open Energy InformationLINKED OPEN DATA: OVERVIEW http://en.openei.org (a typical website)  Stores all information in its own database  Other sites have similar design pattern => Duplication of effort and information  Both sites responsible for updating information => Potential for online community to be presented with conflicting information If the original site updates its data, the two sites become out of sync. How does the online community know which site is more accurate? 4
    5. 5. Open Energy InformationLINKED OPEN DATA: OVERVIEW http://en.openei.org (a typical website)  Datasets are shared behind the scenes => Each site can focus on key data and import supplemental data  Imported data updates automatically => Provides users with consistent information across multiple sites  Other Websites can consume LOD resources to present new content in exciting and unanticipated ways 5
    6. 6. Open Energy InformationLINKED OPEN DATA: OVERVIEW http://en.openei.org (a typical website)  Datasets are shared behind the scenes => Each site can focus on key data and import supplemental data  Imported data updates automatically => Provides users with consistent information across multiple sites  Other Websites can consume LOD resources to present new content in exciting and unanticipated ways Data is shared at the database level. Updates to a linked database appear instantly on partner sites. 6
    7. 7. Open Energy InformationLINKED OPEN DATA: OVERVIEW http://en.openei.org (a typical website)  Datasets are shared behind the scenes => Each site can focus on key data and import supplemental data  Imported data updates automatically => Provides users with consistent information across multiple sites  Other Websites can consume LOD resources to present new content in exciting and unanticipated ways Third party websites can combine (or “mashup”) linked open data to form innovative content, or new data. 7
    8. 8. Open Energy InformationIMPACT AND OVERVIEW http://en.openei.org Project Description OpenEI is a free and open knowledge sharing platform created to facilitate access to energy-related data, models, tools, and information. Sponsored by the Department of Energy, and developed by the National Renewable Energy Lab, in support of the Open Government Initiative, OpenEI strives to make energy-related data and information searchable, accessible, useful to both people and machines. Built utilizing the standards and practices of the Linked Open Data community, the OpenEI platform is much more robust and powerful than typical web sites and databases. All users can search, edit, contribute, and access data in OpenEI; all for free. OpenEI Statistics * • 756,000+ web visits from 210+ countries • More than 3,400 registered users • Over 800 datasets • Over 8,000 Twitter followers • Creation of over 56,000 content pages • More than 500 Facebook fans • Upload of over 4,600 images and files • Over 17.2 million RDF triples • More than 450,000 contributor actionsOpen Government Initiative • Over 586,000 unique visitors *per Google Analytics as of April 30, 2012OpenEI supports the U.S. Department of Energy’sfulfillment of open government standards:transparency, public participation, and Project History and Timelinecollaboration. Sep. 2009 Launched OpenEI: Wiki Dec. 2009 OpenEI confirmed as DOE’s Open Government Initiative (OGI) Apr. 2010 Recognized by White House as a Flagship Open Government InitiativeData Analysis and Visualization Group Oct. 2010 Launched OpenEI: DatasetsProject Lead: Jan. 2011 Featured on White House Innovations GalleryDebbie Brodt-Giles, NREL Jan. 2012 Launched OpenEI: AppsDebbie.brodt.giles@nrel.gov 8
    9. 9. Open Energy Information COLLABORATIVE APPROACH http://en.openei.org A Platform of Platforms OpenEI consists of several open source platforms which have been custom- integrated for optimal collaboration and to allow a seamless user experience.• Wiki – Built upon the same underlying technology as Wikipedia• Datasets – Utilizes Drupal and Amazon data Wiki Collective storage services Crowdsourcing• Linked Open Data – Semantic wiki extensions and a Virtuoso triple store• Apps – Simile Exhibit based display of Datasets Census Single Segmented extracted wiki data Authoritative Crowdsourcing Owner Data Quality and Audit Trail Full edit and revision history on every page Apps, Widgets, Tools, Models Pages can be “watched” for changes, updates Edits to sensitive areas may be subject to review User community can help expand the data and increase accuracy Forms often require references be cited 9
    10. 10. Open Energy InformationLINKED OPEN DATA ON OPENEI http://en.openei.orgOne of the featured pieces of content on OpenEI’s country pages is thereegle Policy and Regulatory Overview:Why is it necessary? “Every day, we create 2.5 quintillion bytes of data — so much that 90% of the data in the world today has been created in the last two years alone.” –IBM, 2012 (http://www-01.ibm.com/software/data/bigdata) 10
    11. 11. Open Energy InformationLINKED OPEN DATA AT WORK http://en.openei.org Behind The Scenes, Linked Open Data at Work: reegle profiles are consumed in real time using SPARQL use of semantic concepts allows the correct profile to be pulled 11
    12. 12. Open Energy InformationTHE ADVANTAGES OF LINKED OPEN DATA http://en.openei.org Focused Efforts • The authors of a website can display all relevant information about a topic but focus on providing only the information they are subject matter experts of Avoids Replication • Re-using existing datasets avoids replication of work already done Reduced Maintenance and Effort • Updates to linked open data are propagated instantly • Maintenance costs and development efforts of larger datasets can be distributed among contributing partners Semantic Linkages and Interoperability • Concepts become part of the semantic web • Data mash-ups and utilizations never before imaged • SPARQL queries can span multiple data sources 12
    13. 13. Thank You! This work was funded by the US Department of Energy Jon Weers Senior Web Applications Engineer OpenEI | NREL Jon.Weers@nrel.gov 303-275-3701

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