State of Play presentation at the LOD2 Plenary Vienna 2012: WP5 - Linked Data Browsing, Visualization and Authoring Interfaces by Sean Policarpio of DERI / NUIG.

1. Creating Knowledge out of Interlinked Data
WP5 – Linked Data Browsing,
Visualization, and Authoring
Interfaces
Sean Policarpio
Digital Enterprise Research Institute
National University of Ireland, Galway
http://lod2.eu
http://lod2.eu

2. Creating Knowledge out of Interlinked Data
Work Package 5
WP5
• Our concerns: the browsing, visual representation, and
creation of linked data.
• Integration with the LOD2 project consists of components that
present and create linked data and span across various
application types and device mediums:
– Spatial-based and faceted browsers, widgets
– Social networking
– Mobile device interfaces
http://lod2.eu

3. Creating Knowledge out of Interlinked Data
WP5 Tasks & Deliverables
Faceted Spatial-
Adaptive Semantic
Semantic Browsing
Authoring
Component
WP5
Social Semantic Mobile Semantic
Networking Interfaces
http://lod2.eu

4. Creating Knowledge out of Interlinked Data
Task Breakdown
5.1 Faceted Spatial-
Semantic Browsing • Concerned with the spatial-semantic browsing
component
Component
5.2 Adaptive • Widget based implementations and tools used
for accessing and creating semantic-content in
Semantic Authoring various environments
5.3 Social Semantic • Implementation of social networking interfaces
Networking based on and connected to semantic-content
5.4 Mobile Semantic • A mobile interface for interacting with the
Interfaces above tasks
http://lod2.eu

5. Creating Knowledge out of Interlinked Data
5.1 Faceted Spatial-Semantic Browsing Component
Initial Release
Final Release Evaluation of
of the Faceted
Geo- of the Faceted the Browser
Spatial
Benchmarking Spatial- with the
Semantic
Definition Semantic Defined
Browsing
Browser Benchmark
Component
• A base-functional • A dataset benchmark • An extended and • Application of the
prototype of the spatial- for spatial-semantic refined version of the benchmarking
semantic browser queries and results initial release. definition to measure
returned from the the browsers query
browser answering
effectiveness
http://lod2.eu

6. Creating Knowledge out of Interlinked Data
The Spatial-Semantic Browsing Component
http://linkedgeodata.org
http://lod2.eu

7. Creating Knowledge out of Interlinked Data
5.2 Adaptive Semantic Authoring
• A widget component for
the authoring of
A Spatial semantic content. This
Authoring is particularly
concerned with the
Widget Set faceted spatial-
semantic browser.
• A framework for the
An Adaptive automatic creation of
Widget widget interfaces for
the creation and editing
Choreography of semantic content.
http://aksw.org/Projects/RDFauthor
http://lod2.eu

8. Creating Knowledge out of Interlinked Data
The Spatial-Semantic Browsers Authoring Widget
http://linkedgeodata.org
http://lod2.eu

9. Creating Knowledge out of Interlinked Data
5.3 Social Semantic Networking
• An interface for the
authoring components of
The Subscription the LOD2 stack that
informs and presents users
and Notification with linked data
Service • e.g. Notifications for
changes/updates of
Semantic Web data
• Extend this interface to be
Open-Social API utilised as a service with
integration with the Open-Social API
• Allows for connectivity with
LOD2 Stack popular social networks
http://docs.opensocial.org
http://lod2.eu

10. Creating Knowledge out of Interlinked Data
5.4 Mobile Semantic Interfaces
Faceted
Spatial-
Adaptive Semantic
Semantic Browsing
Authoring Component
Widgets
The
Subscription
and • Integration of the above components
Notification
Service into a mobile device format
• E.g. the Android framework for
cross-device support
Mobile Semantic
Interfaces
http://www.android.com/branding/
http://lod2.eu

11. Creating Knowledge out of Interlinked Data
Additional Integration Items: An Assisted SPARQL Query Editor
• Based on a Data Graph Summary; a model that displays attributes such as entity and class linkage, property
and class usage (cardinality), as well as other important statistical information for a particular graph of data (eg.
RDF, RDFa, microformats).
• Stored as an RDF graph so that it may be queried and utilised in conjunction with the datasets it represents.
• Computed using a scalable, distributed computing system (i.e Apache Hadoop) for the purpose of producing
summaries for very large sized data graphs.
http://lod2.eu

12. Creating Knowledge out of Interlinked Data
Points for this Weeks Break-out Session
5.1 – Browsing 5.2 – Adaptive
Component Semantic Authoring
Showcase integration of the adaptive
Benchmarking status and issues
widgets
Expectations for next release of the Discuss present status and additional
faceted spatial-semantic browser features to be implemented
Framework expectations
http://lod2.eu

13. Creating Knowledge out of Interlinked Data
Points for this Weeks Break-out Session
5.3 – Social Semantic
5.4 – Mobile Interfaces
Networking
Presentation of the Discussion about mobile-based
surveyed/reviewed methods approaches
http://lod2.eu