Skip to main content

Coverage-Based Summaries for RDF KBs

Part of the Lecture Notes in Computer Science book series (LNISA,volume 12739)

Abstract

As more and more data become available as linked data, the need for efficient and effective methods for their exploration becomes apparent. Semantic summaries try to extract meaning from data, while reducing its size. State of the art structural semantic summaries, focus primarily on the graph structure of the data, trying to maximize the summary’s utility for query answering, i.e. the query coverage. In this poster paper, we present an algorithm, trying to maximize the aforementioned query coverage, using ideas borrowed from result diversification. The key idea of our algorithm is that, instead of focusing only to the “central” nodes, to push node selection also to the perimeter of the graph. Our experiments show the potential of our algorithm and demonstrate the considerable advantages gained for answering larger fragments of user queries.

This is a preview of subscription content, access via your institution.

Buying options

Chapter
USD   29.95
Price excludes VAT (USA)
  • DOI: 10.1007/978-3-030-80418-3_18
  • Chapter length: 5 pages
  • Instant PDF download
  • Readable on all devices
  • Own it forever
  • Exclusive offer for individuals only
  • Tax calculation will be finalised during checkout
eBook
USD   54.99
Price excludes VAT (USA)
  • ISBN: 978-3-030-80418-3
  • Instant PDF download
  • Readable on all devices
  • Own it forever
  • Exclusive offer for individuals only
  • Tax calculation will be finalised during checkout
Softcover Book
USD   69.99
Price excludes VAT (USA)
Fig. 1.
Fig. 2.

References

  1. Kondylakis, H., Plexousakis, D.: Ontology evolution: assisting query migration. In: Atzeni, P., Cheung, D., Ram, S. (eds.) ER 2012. LNCS, vol. 7532, pp. 331–344. Springer, Heidelberg (2012). https://doi.org/10.1007/978-3-642-34002-4_26

    CrossRef  Google Scholar 

  2. Čebirić, Š, et al.: Summarizing semantic graphs: a survey. VLDB J. 28(3), 295–327 (2018). https://doi.org/10.1007/s00778-018-0528-3

    CrossRef  Google Scholar 

  3. Pappas, A., Troullinou, G., Roussakis, G., Kondylakis, H., Plexousakis, D.: Exploring importance measures for summarizing RDF/S KBs. In: Blomqvist, E., Maynard, D., Gangemi, A., Hoekstra, R., Hitzler, P., Hartig, O. (eds.) ESWC 2017. LNCS, vol. 10249, pp. 387–403. Springer, Cham (2017). https://doi.org/10.1007/978-3-319-58068-5_24

    CrossRef  Google Scholar 

  4. Troullinou, G., Kondylakis, H., Stefanidis, K., Plexousakis, D.: Exploring RDFS KBs using summaries. In: Vrandečić, D., et al. (eds.) ISWC 2018. LNCS, vol. 11136, pp. 268–284. Springer, Cham (2018). https://doi.org/10.1007/978-3-030-00671-6_16

    CrossRef  Google Scholar 

  5. Troullinou, G., Kondylakis, H., Daskalaki, E., Plexousakis, D.: RDF digest: ontology exploration using summaries. In: International Semantic Web Conference (Posters & Demos) (2015)

    Google Scholar 

  6. Drosou, M., Pitoura, E.: DisC diversity: result diversification based on dissimilarity and coverage. Proc. VLDB Endow. 6(1), 13–24 (2012)

    CrossRef  Google Scholar 

  7. Voß, S.: Steiner’s problem in graphs: heuristic methods. Discrete Appl. Math. 40(1), 45–72 (1992)

    MathSciNet  CrossRef  Google Scholar 

  8. Agathangelos, G., Troullinou, G., Kondylakis, H., Stefanidis, K., Plexousakis, D.: RDF query answering using apache Spark: review and assessment. In: IEEE 34th International Conference on Data Engineering Workshops (ICDEW), pp. 54–59 (2018)

    Google Scholar 

Download references

Acknowledgements

This research project was supported by the Hellenic Foundation for Research and Innovation (H.F.R.I.) under the “2nd Call for H.F.R.I. Research Projects to support Post-Doctoral Researchers” (iQARuS Project No. 1147).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Haridimos Kondylakis .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and Permissions

Copyright information

© 2021 Springer Nature Switzerland AG

About this paper

Verify currency and authenticity via CrossMark

Cite this paper

Vassiliou, G., Troullinou, G., Papadakis, N., Stefanidis, K., Pitoura, E., Kondylakis, H. (2021). Coverage-Based Summaries for RDF KBs. In: , et al. The Semantic Web: ESWC 2021 Satellite Events. ESWC 2021. Lecture Notes in Computer Science(), vol 12739. Springer, Cham. https://doi.org/10.1007/978-3-030-80418-3_18

Download citation

  • DOI: https://doi.org/10.1007/978-3-030-80418-3_18

  • Published:

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-80417-6

  • Online ISBN: 978-3-030-80418-3

  • eBook Packages: Computer ScienceComputer Science (R0)