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Ensemble-Based Relationship Discovery in Relational Databases

  • Akinola OgunsemiEmail author
  • John McCall
  • Mathias Kern
  • Benjamin Lacroix
  • David Corsar
  • Gilbert Owusu
Conference paper
  • 106 Downloads
Part of the Lecture Notes in Computer Science book series (LNCS, volume 12498)

Abstract

We performed an investigation of how several data relationship discovery algorithms can be combined to improve performance. We investigated eight relationship discovery algorithms like Cosine similarity, Soundex similarity, Name similarity, Value range similarity, etc., to identify potential links between database tables in different ways using different categories of database information. We proposed voting system and hierarchical clustering ensemble methods to reduce the generalization error of each algorithm. Voting scheme uses a given weighting metric to combine the predictions of each algorithm. Hierarchical clustering groups predictions into clusters based on similarities and then combine a member from each cluster together. We run experiments to validate the performance of each algorithm and compare performance with our ensemble methods and the state-of-the-art algorithms (FaskFK, Randomness and HoPF) using Precision, Recall and F-Measure evaluation metrics over TPCH and AdvWork datasets. Results show that performance of each algorithm is limited, indicating the importance of combining them to consolidate their strengths.

Keywords

Semantic relationship Primary/Foreign key relationship Data discovery Database management Ensemble-based discovery 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Akinola Ogunsemi
    • 1
    Email author
  • John McCall
    • 1
  • Mathias Kern
    • 2
  • Benjamin Lacroix
    • 1
  • David Corsar
    • 1
  • Gilbert Owusu
    • 2
  1. 1.Robert Gordon UniversityAberdeenUK
  2. 2.BT Applied ResearchIpswichUK

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