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2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
• Research Engineer @Saltlux
• Managing Director @ODI Seoul
• Core team member @Open Knowledge Korea
Seonho Kim
Interests: Semantic technologies, Linked Open Data, Artificial intelligence
SNS - ksseono @Facebook / SeonhoKim @TwitterEmail - [email protected]
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Saltlux, Inc.
• http://www.saltlux.com• Top 10 Global Semantic Technology Company• AI and BigData R&D for 30 years• 80 domestic/oversea patents• Semantic Web Challenge (ISWC) winner, 2011• ODI Seoul Node
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Ranked top 12 among 77 countries
GOAL: UP TO TOP 5
Open Data Barometer 2013, Korea
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Strategic Issues Budget Issues Privacy Issues
Challenges for Open Gov. Data ...
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
But, Data Quality!
(Reasoning Web, Manolis et al.)
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
• Difficult to define relations among datasets
• Difficult to connect and integrate between the heterogeneous datasets
• Naive metadata
• Difficult to indicate the same information between the heterogeneous datasets
• Language barrier -written only in Korean
• City centric data -limited to co-operate for the public purpose
321 Fragmented Data Brocken Data limited Data
Linked Data - As Is
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - How? : Process
Data�AnalysisLD�System�Implementing
Data�Modeling Data�Enriching
1 2 3 4
• Collect various datasets of the cultural assets, facilities, market and so on
• Excel to RDB
• Extract common entities
• Select RDF vocabularies
• Define a specification for the use-case ontology
• Define a guideline for naming entity URIs
• Design the relations
• Define additional metadata
• Connect the datasets
• Validate RDF data
• Construct SPARQL Endpoint
• Implement UI / Visualization
• Use Case - Linked Open Data Service for Seoul City by Open Knowledge Korea
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - How? : Architecture
Data�Sets
Transforming�Rules
TransformingTools
RelFinder
Linked�Data�System
Protégé�/TopBriad�Composer
Google�Refine
MySQL
ARC2 SPARQL�Endpoint
Pubby
UI
UI
UI
Refine�RDF�Extension
• Use Case - Linked Open Data Service for Seoul City by Open Knowledge Korea
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
1. Data Source 2. Design Model
4. Design Data Pages
5. Compose URLsfor the Data Pages
6. ComposeData Pages in HTML
7. Grant URIs for the Entities
3. Construct RDF data
8. Input Metadata for the Data Pages
9. Connect other Linked Data
Implementing Linked Data
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Advantages of Linked Datawe usually say..
1. Reuse of Data
2. Reducing the management cost
3. Interoperability for the integrated datasets
... Really?
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - How?
→ This is only about agreements
for protocols, standard formats
and their definitions,
not about accessing/querying
those ‘distributed' data.
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - How?
* Web-Scale Querying through Linked Data Fragments, Multimedia Lab in Ghent University
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea
• Linked Data System for Kyunggi-do Governmentby Saltlux & Open Knowledge Korea
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea
• Linked Data System for Kyunggi-do Governmentby Saltlux & Open Knowledge Korea
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea
• Linked Data System for Kyunggi-do Governmentby Saltlux & Open Knowledge Korea
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea
• Linked Data System for Kyunggi-do Governmentby Saltlux & Open Knowledge Korea
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea
• Linked Data System for Kyunggi-do Governmentby Saltlux & Open Knowledge Korea
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea• Linked Data System for Intellectual Properties by Saltlux
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea• Linked Data System for Intellectual Properties by Saltlux
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea• Linked Data System for Intellectual Properties by Saltlux
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Linked Data - use cases in Korea• Linked Data System for Intellectual Properties by Saltlux
2nd Korea-UK Data Workshop with ODI / Dec 15, 2015
Conclusion
Importance of Linked Data technologies to make real/practical of the benefits of Open Data
It’s all aboutOpen Data Qualityand Implementation of the applications/services