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LODFlowWorkflow Management System for Linked
Data Processing
Sandro Rautenberg, Ivan Ermilov, Edgard Marx, Sören Auer, and Axel-Cyrille N. Ngomo
Agenda● Introduction● Linked Data Workflow Management● LODFlow: LD Workflow Management
System● LODFlow: Use Cases● Related Work● Conclusion and Future Work
Intro: A Bird’s Eye View on The Problem
Creation and Maintenance of
LD Datasets
manual workflows
applying scripts
cumbersometime-
consuming
error-prone
requiring skills
Linked DataWorkflow
Management
supported by a systematic way
be component-oriented
enabling the reuse of process
facilitating the resource provenance and reproducibility
ensuring the correctness
supporting the evolution
Intro: Solution Outline
Linked DataWorkflow Documentation
Linked DataWorkflow Repeatability
Linked Data Workflow Management
SystemRequirements
Linked Data Workflow Planning
Linked DataWorkflow Execution
Linked DataWorkflow Reusability
LODFlow
Benefits:● Explicitness● Reusability● Repeatability● Efficiency● Ease to use
LODFlow: LDWPO ontology (abstract)The Linked Data Workflow
Knowledge Model and Knowledge Base
LODFlow: Architecture
Qualis: LODFlow Use Caseindirect scores for periodical papers, according 48 knowledge fields.
http://qualis.capes.gov.br/webqualis/publico/pesquisaPublicaClassificacao.seam?conversationPropagation=begin
use in bibliometric and scientometric studies and for ranking post-graduate programs, research proposals, or individual research scholarships.
Qualis (cont.)
● Problem:○ Data available only as 1 Star Data○ Only the current version is available○ Data is not linked to other datasets
● Solution:○ Extracted the data from the web interface (10 years)○ Converted Qualis to a 5-star dataset○ Interlinked it to the DBpedia knowledge base
Qualis: Workflow
● Create a plan for LD project○ Planning the maintenance of LD datasets○ Managing the lifecycle of resources
● Execute a plan○ Maintaining the provenance and repeatability
information○ Producing the resources
Qualis: Workflow (cont.)
Qualis: Workflow ImplementationCreate a plan for LDProject
Workflow Implementation (cont.)Execute a plan
Qualis: Results
● Were executed over 10 years● LODFlow fulfills the requirements
Related work
● Languages such as Business Process Execution Language are adopted in technologies
● Scientific Workflow Management Systems, such as Apache Taverna and Kepler were developed
Conclusion
● Automatization of processing LD workflows● Preserving provenance information on (re)
producing LD datasets● Showing the benefits of explicitness,
reusability, repeatability and efficiency● Applicable in the context of the LODStack
and LD Lifecycle.
Future work: Integration with LODStack
Developing a tool to integrate LODFlow to the LODStack.
Improving the LDWPO with Method concepts
Future work: New Use Casesresearch group extracted
from a transparency portal
Qualis classification set of papers extracted
from Lattes CV
Thank you for your attention!
[email protected]@gmail.com
We acknowledge support from CAPES/Brazil Agency as well as BMWi SAKE project.
