LOD2: State of Play WP5 - Linked Data Visualization, Browsing and Authoring
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The document outlines the objectives and tasks of Work Package 5 (WP5) of the LOD2 project, focusing on linked data visualization, browsing, and authoring. Key tasks include developing tools for faceted browsing, semantic authoring, and mobile interfaces, as well as creating visualizations to support dynamic data integration. The project aims to enhance user interaction with linked data through adaptive web interfaces and promote user engagement via social semantic networking features.
LOD2: State of Play WP5 - Linked Data Visualization, Browsing and Authoring
- 1. Creating Knowledge out of Interlinked Data WP5 - Linked Data Visualization, Browsing and Authoring Renaud Delbru, National University of Ireland, Galway Paris, 23 March 2011 http://lod2.eu LOD2 Title . 23.03.2010 . Page 1 http://lod2.eu
- 2. Creating Knowledge out of Interlinked Data WP 5: Linked Data Visualization, Browsing and Authoring Goal WP5 aims to build on and go beyond existing approaches for realizing adaptive Web user interfaces. Partners ULEI - UNIVERSITAET LEIPZIG CWI - STICHTING CENTRUM VOOR WISKUNDE EN INFORMATICA NUIG - NATIONAL UNIVERSITY OF IRELAND, GALWAY FUB - FREIE UNIVERSITAET BERLIN SWC - SEMANTIC WEB COMPANY GMBH LOD2 Title . 23.03.2011 . Page 2 http://lod2.eu
- 3. Creating Knowledge out of Interlinked Data WP 5: Linked Data Visualization, Browsing and Authoring Tasks Task 5.1 – Faceted Spatial-Semantic Browsing NUIG, ULEI, FUB, CWI, SWC Task 5.2 – Adaptive Semantic Authoring ULEI Task 5.3 – Social Semantic Networking SWC Task 5.4 – Mobile Semantic Interfaces NUIG LOD2 Title . 23.03.2011 . Page 3 http://lod2.eu
- 4. Creating Knowledge out of Interlinked Data WP 5: Linked Data Visualization, Browsing and Authoring The promise of the LOD data integration is fulfilled when data integration is dynamic visualization is needed to support this For this to happen we envision different visualization tools: 1. Tools to search, browse and inspect datasets 2. LOD powered widgets • To enhance web sites • To support vertical search interfaces 3. Sig.ma Enterprise Edition (Sig.ma EE) 4. Faceted Spatial Browsing 5. Semantic Authoring 6. PoolParty UI – Alternative Wiki UIs LOD2 Title . 23.03.2011 . Page 4 http://lod2.eu
- 5. Creating Knowledge out of Interlinked Data WP 5: Tools to search and browse datasets • Finding datasets which are interesting for several aspects: • powering a LOD application • enhancing an existing dataset • validating an existing dataset • The tools will support • hundreds of thousands of datasets • text search and faceted browsing (content, tags and metadata) • social features (dataset annotation, promotion, etc.) • recommendations based on the user context e.g. an existing dataset or a manually listed set of entities LOD2 Title . 23.03.2011 . Page 5 http://lod2.eu
- 6. Creating Knowledge out of Interlinked Data WP 5: Tools to search and browse datasets LOD2 Title . 23.03.2011 . Page 6 http://lod2.eu
- 7. Creating Knowledge out of Interlinked Data WP 5: Tools to inspect LOD datasets • Explore the structure and overall composition of a dataset • Interactive visualization tools • Advanced triple visualization • Zoom-able graph representation • Entity-centric representation • Others, possibly triggered by the data itself • Statistics about data • Statistics about datasets (e.g., triple counts, classes, ontologies) • Statistics about links (e.g., histograms, inter-links) • Statistics regarding entity disambiguation (e.g., sameAs, IFP) • These tools address both the Entity, Document and Dataset level LOD2 Title . 23.03.2011 . Page 7 http://lod2.eu
- 8. Creating Knowledge out of Interlinked Data WP 5: Tools to inspect LOD datasets LOD2 Title . 23.03.2011 . Page 8 http://lod2.eu
- 9. Creating Knowledge out of Interlinked Data WP 5: Tools to inspect LOD datasets LOD2 Title . 23.03.2011 . Page 9 http://lod2.eu
- 10. Creating Knowledge out of Interlinked Data WP 5: LOD powered widgets • A platform to create flexible interactive widgets that can be easily embedded and integrated in any web based application • A workflow will guide the domain expert through 1. selection of the datasets 2. creation of the query and 3. customization of its layout (quality default layouts will be provided) LOD2 Title . 23.03.2011 . Page 10 http://lod2.eu
- 11. Creating Knowledge out of Interlinked Data WP 5: LOD powered enhancement widgets LOD2 Title . 23.03.2011 . Page 11 http://lod2.eu
- 12. Creating Knowledge out of Interlinked Data WP 5: LOD powered vertical search widgets Mockup LOD2 Title . 23.03.2011 . Page 13 http://lod2.eu
- 13. Creating Knowledge out of Interlinked Data WP 5: LOD powered widget composer Mockup LOD2 Title . 23.03.2011 . Page 14 http://lod2.eu
- 14. Creating Knowledge out of Interlinked Data WP 5: Sig.Ma Enterprise Edition • Sig.Ma Enterprise Edition (Sig.Ma EE) is an evolution of Sig.Ma which is targeted at LOD and Enterprise LOD clouds • Sig.Ma EE: • Can be deployed in house (as a servlet!) not dependent on Sindice • Is able to restrict which LOD datasets one can use • Is able to query and integrate specific and heterogeneous data sources thanks to a flexible adapters and plugins model • can be customized (uncertainty thresholds for fuzzy consolidation) LOD2 Title . 23.03.2011 . Page 15 http://lod2.eu
- 15. Creating Knowledge out of Interlinked Data WP 5: What The DoW Says on CWI • M18 - D5.1.2 • “Initial geo-benchmark definition: Based on the capabilities and envisioned features of the spatial-semantic browsing component, CWI will select a data set (e.g. OpenStreetMap) and formulate a representative set of queries that could be generated by the spatial-semantic browsing component. “ • M36 - D5.1.4 • “CWI and Openlink will measure/ demonstrate the effectiveness of the MonetDB and Virtuoso RDF data management solutions for large-scale spatial-semantic query answering, as generated by the spatial-semantic browsing component.” • CWI has 6 out of 75 man-months in WP5 (8%) LOD2 Title . 23.03.2011 . Page 16 http://lod2.eu
- 16. Creating Knowledge out of Interlinked Data WP 5: Geo Benchmarking • Database benchmarking is a core task in the scalable data management work-package (WP2) that CWI leads • Goals of Benchmarking: • stimulate technical progress in the field • involve outside third parties (e.g. engine vendors) • binding factor among LOD2 participants: • FUB – BSBM • ULEI - DBpedia benchmark • CWI & OGL – RDF-H Social Intelligence Benchmark (SIB) • LOD2 initiative: benchmark auditing service • LOD2 academic partner audits benchmark runs • allow vendors to submit properly tuned benchmark results • stringent check for fairness, providing credibility LOD2 Title . 23.03.2011 . Page 17 http://lod2.eu
- 17. Creating Knowledge out of Interlinked Data WP 5: Geo Benchmarking • Steps D5.1.2: • looking at past (non-LOD) geographical benchmarks • spatial-only or spatio-temporal ? • learn about the use cases for spatial LOD • identifying representative datasets • identifying representative query workloads • identifying stakeholders in spatial LOD • choosing/formulating a benchmark • Steps D5.1.4: • identifying engines that can run it, motivating to submit • evaluating the benchmark on Virtuoso and MonetDB • perform optimizations • extend the LOD benchmark auditing service to spatial RDF LOD2 Title . 23.03.2011 . Page 18 http://lod2.eu
- 18. Creating Knowledge out of Interlinked Data WP 5: Task 5.1 – Faceted Spatial-Semantic Browsing (ULEI) • Map display enriched with faceted browsing interface • Result view w/ RDFa templates • 2 implementations: • Linked Geodata Extension • OntoWiki Extension LOD2 Title . 23.03.2011 . Page 19 http://lod2.eu
- 19. Creating Knowledge out of Interlinked Data WP 5: Task 5.2 – Semantic authoring widgets (ULEI) • RDFa + SPARQL/Update based authoring widgets • Spatial authoring widgets (lon/lat selection, automatic geocoding) • Widget choreography • Meta widgets containing defined sets of sub-widgets for certain KB schema types • Overridable system decisions LOD2 Title . 23.03.2011 . Page 20 http://lod2.eu
- 20. Creating Knowledge out of Interlinked Data WP 5: PoolParty Thesaurus Management GUI (SWC) Search with auto-complete Toolbar Hierarchy tree Concept SKOS details view Link concepts via drag and drop or auto-complete © Semantic Web Company – http://www.semantic-web.at/ LOD2 Title . 23.03.2011 . Page 21 http://lod2.eu
- 21. Creating Knowledge out of Interlinked Data Color coded RDF Classes Different views on concepts via tabs © Semantic Web Company – http://www.semantic-web.at/ LOD2 Title . 23.03.2010 . Page 22 http://lod2.eu
- 22. Creating Knowledge out of Interlinked Data WP 5: Linked Data Consumption, Usage and Publishing Cycle © Semantic Web Company – http://www.semantic-web.at/ LOD2 Title . 23.03.2011 . Page 23 http://lod2.eu
- 23. Creating Knowledge out of Interlinked Data WP 5: Linking and pulling in data from LOD sources © Semantic Web Company – http://www.semantic-web.at/ LOD2 Title . 23.03.2011 . Page 24 http://lod2.eu
- 24. Creating Knowledge out of Interlinked Data WP 5: Alternative Wiki and Linked Data UIs © Semantic Web Company – http://www.semantic-web.at/ LOD2 Title . 23.03.2011 . Page 25 http://lod2.eu
- 25. Creating Knowledge out of Interlinked Data WP 5: Conclusions WP 5 has just started and: • Ambitious goals (e.g., to serve the whole LOD community via general tools) • Has already many ongoing subprojects • But also on demand development • Is here to listen to your needs so speak up! LOD2 Title . 23.03.2011 . Page 28 http://lod2.eu
- 26. Creating Knowledge out of Interlinked Data WP 9: Irish Government Data (DERI Contribution) • Set up http://ie.ckan.net/ with OKF support • Together with Central Statistics Office and Department of Education • Showcase/applications LOD2 Title . 23.03.2011 . Page 29 http://lod2.eu