LOD2 Plenary Vienna 2012: WP5 - Linked Data Browsing, Visualization and Authoring Interfaces
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Transcript of LOD2 Plenary Vienna 2012: WP5 - Linked Data Browsing, Visualization and Authoring Interfaces
http://lod2.eu
Creating Knowledge out of Interlinked Data
http://lod2.eu
WP5 – Linked Data Browsing,
Visualization, and Authoring
Interfaces
Sean Policarpio
Digital Enterprise Research Institute
National University of Ireland, Galway
http://lod2.eu
Creating Knowledge out of Interlinked Data
Work Package 5
• 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
WP5
http://lod2.eu
Creating Knowledge out of Interlinked Data
WP5 Tasks & Deliverables
Faceted Spatial-Semantic Browsing
Component
Adaptive Semantic Authoring
Social Semantic Networking
Mobile Semantic Interfaces
WP5
http://lod2.eu
Creating Knowledge out of Interlinked Data
Task Breakdown
• Concerned with the spatial-semantic browsing component
5.1 Faceted Spatial-Semantic Browsing
Component
• Widget based implementations and tools used for accessing and creating semantic-content in various environments
5.2 Adaptive Semantic Authoring
• Implementation of social networking interfaces based on and connected to semantic-content
5.3 Social Semantic Networking
• A mobile interface for interacting with the above tasks
5.4 Mobile Semantic Interfaces
http://lod2.eu
Creating Knowledge out of Interlinked Data
5.1 Faceted Spatial-Semantic Browsing Component
Evaluation of the Browser
with the Defined
Benchmark
• Application of the benchmarking definition to measure the browsers query answering effectiveness
Final Release of the Faceted
Spatial-Semantic Browser
• An extended and refined version of the initial release.
Geo-Benchmarking
Definition
• A dataset benchmark for spatial-semantic queries and results returned from the browser
Initial Release of the Faceted
Spatial Semantic Browsing
Component
• A base-functional prototype of the spatial-semantic browser
http://lod2.eu
Creating Knowledge out of Interlinked Data
The Spatial-Semantic Browsing Component
http://linkedgeodata.org
http://lod2.eu
Creating Knowledge out of Interlinked Data
5.2 Adaptive Semantic Authoring
• A widget component for the authoring of semantic content. This is particularly concerned with the faceted spatial-semantic browser.
A Spatial Authoring
Widget Set
• A framework for the automatic creation of widget interfaces for the creation and editing of semantic content.
An Adaptive Widget
Choreography
http://aksw.org/Projects/RDFauthor
http://lod2.eu
Creating Knowledge out of Interlinked Data
The Spatial-Semantic Browsers Authoring Widget
http://linkedgeodata.org
http://lod2.eu
Creating Knowledge out of Interlinked Data
5.3 Social Semantic Networking
• An interface for the authoring components of the LOD2 stack that informs and presents users with linked data
• e.g. Notifications for changes/updates of Semantic Web data
The Subscription and Notification
Service
• Extend this interface to be utilised as a service with the Open-Social API
• Allows for connectivity with popular social networks
Open-Social API integration with
LOD2 Stack
http://docs.opensocial.org
http://lod2.eu
Creating Knowledge out of Interlinked Data
5.4 Mobile Semantic Interfaces
Mobile Semantic Interfaces
The Subscription
and Notification
Service
Adaptive Semantic Authoring Widgets
Faceted Spatial-
Semantic Browsing
Component
• Integration of the above components
into a mobile device format
• E.g. the Android framework for
cross-device support
http://www.android.com/branding/
http://lod2.eu
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
Creating Knowledge out of Interlinked Data
Points for this Weeks Break-out Session
5.1 – Browsing Component
Benchmarking status and issues
Expectations for next release of the faceted spatial-semantic browser
5.2 – Adaptive Semantic Authoring
Showcase integration of the adaptive widgets
Discuss present status and additional features to be implemented
Framework expectations
http://lod2.eu
Creating Knowledge out of Interlinked Data
Points for this Weeks Break-out Session
5.3 – Social Semantic Networking
Presentation of the surveyed/reviewed methods
5.4 – Mobile Interfaces
Discussion about mobile-based approaches