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Supporting the use of data:
From data repositories to service discovery
Mathieu d’Aquin
Knowledge Media Institute, The Open University
mathieu.daquin@open.ac.uk, @mdaquin
Data repositories are becoming more and
more important
In education
In general
For Smart Cities
The Key Question is:
How do we support the exploitation of
those data
ExamplE: The MK Data Hub
MK Data Hub
Analytics
Integration
Curation
Storage
Import
Sensor
Data
Local
Stats
Gov.
Open
Data
...
Mobile
Apps
Dashboards
Business
Intelligence
Social Web
Apps
...
Example: The MK Data Hub
MK Data Hub
Analytics
Integration
Curation
Storage
Import
Find
Share Develop
GetCreate
Get
Data
Create Applications
with Data
Find
Data
Applications (Examples)
From A Data Platform to an Experiment
Platform
From A Data Platform to an Experiment
Platform
From A Data Platform to an Experiment
Platform
Data
Services
Available
Data
Ontological
representation
of service
capability
Ontological
representation
of data
characteristics
Exploitability
Applicability
Ongoing work on Applicability
… … … …
Ongoing work on Exploitability
Ontological
representation
of data
characteristics
Exploitability
Characteristics of the data that needs to be taken into
account for exploitability:
- Validity, quality, coverage
- Nature (time series, statistics, geo, etc)
- Scale
- Connection, complementarity to others,
uniqueness
- Policies and rights
Data Rights and Policies in Data Flows
Daga et al (2015),
Propagation of policies in
rich data flows
Given a data flow (the application of data services), how do the licence
statements propagate across the data flows?
Dataflow
representation
Input Data
licence
representation
Policy
propagation
rules
Output Data
licence
representation
Representation of policies
Data Rights and Policies in Data Flows
Daga et al (2015),
Propagation of policies in
rich data flows
Given a data flow (the application of data services), how do the licence
statements propagate across the data flows?
Dataflow
representation
Input Data
licence
representation
Policy
propagation
rules
Output Data
licence
representation
Representation of
DatAflows
Many options for the
representation of workflows
(including ProvO) to represent
what processes are applied to
data.
DataNode ontology to represent
what in which way these
processes actually affect data:
Representation of relationships
between the data artefact in
input and output of the
processes.
Conclusion
Service discovery requires not only an adequate representation
of the data services (which is not solved) but also the adequate
representation of the available data.
Including right, policy and licence aspects...
Thank You!
mathieu@daquin.net
@mdaquin
Alessandro
Adamou
Enrico
Daga
Carlo
Allocca
Shuangyan
Liu
Keerthi
Thomas
Ilaria
Tiddi
Emanuele
Bastianelli
Need to manage data in more thoroughly

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Supporting the use of data: From data repositories to service discovery

  • 1. Supporting the use of data: From data repositories to service discovery Mathieu d’Aquin Knowledge Media Institute, The Open University mathieu.daquin@open.ac.uk, @mdaquin
  • 2. Data repositories are becoming more and more important In education In general For Smart Cities
  • 3. The Key Question is: How do we support the exploitation of those data
  • 4. ExamplE: The MK Data Hub MK Data Hub Analytics Integration Curation Storage Import Sensor Data Local Stats Gov. Open Data ... Mobile Apps Dashboards Business Intelligence Social Web Apps ...
  • 5. Example: The MK Data Hub MK Data Hub Analytics Integration Curation Storage Import Find Share Develop GetCreate
  • 8. From A Data Platform to an Experiment Platform
  • 9. From A Data Platform to an Experiment Platform
  • 10. From A Data Platform to an Experiment Platform Data Services Available Data Ontological representation of service capability Ontological representation of data characteristics Exploitability Applicability
  • 11. Ongoing work on Applicability … … … …
  • 12. Ongoing work on Exploitability Ontological representation of data characteristics Exploitability Characteristics of the data that needs to be taken into account for exploitability: - Validity, quality, coverage - Nature (time series, statistics, geo, etc) - Scale - Connection, complementarity to others, uniqueness - Policies and rights
  • 13. Data Rights and Policies in Data Flows Daga et al (2015), Propagation of policies in rich data flows Given a data flow (the application of data services), how do the licence statements propagate across the data flows? Dataflow representation Input Data licence representation Policy propagation rules Output Data licence representation
  • 15. Data Rights and Policies in Data Flows Daga et al (2015), Propagation of policies in rich data flows Given a data flow (the application of data services), how do the licence statements propagate across the data flows? Dataflow representation Input Data licence representation Policy propagation rules Output Data licence representation
  • 16. Representation of DatAflows Many options for the representation of workflows (including ProvO) to represent what processes are applied to data. DataNode ontology to represent what in which way these processes actually affect data: Representation of relationships between the data artefact in input and output of the processes.
  • 17. Conclusion Service discovery requires not only an adequate representation of the data services (which is not solved) but also the adequate representation of the available data. Including right, policy and licence aspects...
  • 19. Need to manage data in more thoroughly