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Faculté des Sciences appliquées
Faculté des Sciences appliquées
MASTER THESIS
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Using Knowledge Graph Technologies to Contextualize and Validate Declarations in the Social Security Domain

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Chiem Dao, Davan ULiège
Promotor(s) : Debruyne, Christophe ULiège
Date of defense : 26-Jun-2023/27-Jun-2023 • Permalink : http://hdl.handle.net/2268.2/17362
Details
Title : Using Knowledge Graph Technologies to Contextualize and Validate Declarations in the Social Security Domain
Author : Chiem Dao, Davan ULiège
Date of defense  : 26-Jun-2023/27-Jun-2023
Advisor(s) : Debruyne, Christophe ULiège
Committee's member(s) : Louveaux, Quentin ULiège
Geurts, Pierre ULiège
Language : English
Discipline(s) : Engineering, computing & technology > Computer science
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master : ingénieur civil en informatique, à finalité spécialisée en "computer systems security"
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[en] This master’s thesis explores the feasibility and potential of knowledge graph technologies, with a specific emphasis on the Shapes Constraint Language (SHACL), for validating declaration forms in the Belgian Social Security domain. The study focused on validating DmfA declarations which are reports describing the work of employees done during a quarter sent by an employer to the government. The study first created a vocabulary for a knowledge graph based on DmfA declarations and the mapping of diverse data sources into Resource Description Framework (RDF) format. The heart of the work lies in the declaration of SHACL constraints for complex business rules, many of which
were implemented via SPARQL, highlighting SHACL’s scalability and versatility in addressing challenging validation tasks. Despite obstacles concerning data transformation while generating RDF representations of the declarations, the research demonstrates that SHACL provides a richer application profile and exceeds the expressiveness of XML Schema Definition (XSD) constraints in implementing complex validation rules. These findings illustrate the potential of knowledge graph technologies and SHACL for managing intricate validation tasks in social security systems and hint at the prospect of their application in future work, such as evolving document integration and validation report integration using named graphs and provenance information.


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Author

  • Chiem Dao, Davan ULiège Université de Liège > Master ingé. civ. info., à fin.

Promotor(s)

Committee's member(s)

  • Louveaux, Quentin ULiège Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation : Optimisation discrète
    ORBi View his publications on ORBi
  • Geurts, Pierre ULiège Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Algorith. des syst. en interaction avec le monde physique
    ORBi View his publications on ORBi
  • Total number of views 41
  • Total number of downloads 55










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