DAFO: An Ontological Database System with Faceted Queries

  • Tadeusz PankowskiEmail author
  • Jarosław Bąk
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11762)


We present an ontology-based data access provided with a faceted interface. The underlying relational database is perceived through an ontological schema. Queries against the ontology are formulated using a hierarchical faceted interface. We show main ideas of DAFO and discuss how it relates to well-known OBDA systems.



We acknowledge the support from the grant 04/45/DSPB/0185.


  1. 1.
    Arenas, M., Grau, B.C., Kharlamov, E., Marciuska, S., Zheleznyakov, D.: Faceted search over ontology-enhanced RDF data. In: ACM CIKM 2014, pp. 939–948. ACM (2014)Google Scholar
  2. 2.
    Baader, F., Calvanese, D., McGuinness, D., Nardi, D., Petel-Schneider, P. (eds.): The Description Logic Handbook: Theory, Implementation and Applications. Cambridge University Press, Cambridge (2003)zbMATHGoogle Scholar
  3. 3.
    Bienvenu, M., Kikot, S., Kontchakov, R., Podolskii, V.V., Zakharyaschev, M.: Ontology-mediated queries: combined complexity and succinctness of rewritings via circuit complexity. J. ACM 65(5), 28:1–28:51 (2018)MathSciNetCrossRefGoogle Scholar
  4. 4.
    Calvanese, D., Giacomo, G., Lembo, D., Lenzerini, M., Rosati, R.: Tractable reasoning and efficient query answering in description logics: the DL-lite family. J. Autom. Reasoning 39(3), 385–429 (2007)MathSciNetCrossRefGoogle Scholar
  5. 5.
    Ferré, S., Hermann, A.: Semantic search: reconciling expressive querying and exploratory search. In: Aroyo, L., et al. (eds.) ISWC 2011. LNCS, vol. 7031, pp. 177–192. Springer, Heidelberg (2011). Scholar
  6. 6.
    Pankowski, T.: Exploring ontology-enhanced bibliography databases using faceted search. In: Kamps, J., Tsakonas, G., Manolopoulos, Y., Iliadis, L., Karydis, I. (eds.) TPDL 2017. LNCS, vol. 10450, pp. 27–39. Springer, Cham (2017). Scholar
  7. 7.
    Pankowski, T.: Schema transformations and query rewriting in ontological databases with a faceted interface. In: Rensink, A., Sánchez Cuadrado, J. (eds.) ICMT 2018. LNCS, vol. 10888, pp. 76–91. Springer, Cham (2018). Scholar
  8. 8.
    Xiao, G., et al.: Ontology-based data access: a survey. In: 27-th Joint Conference on Artificial Intelligence, IJCAI 2018, pp. 5511–5519 (2018)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of Control and Information EngineeringPoznań University of TechnologyPoznańPoland

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