Merging Bottom-Up and Top-Down Knowledge Graphs for Intuitive Knowledge Browsing

  • Gwendolin WilkeEmail author
  • Sandro Emmenegger
  • Jonas Lutz
  • Michael Kaufmann
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 400)


The Lokahi Enterprise Knowledge Browser provides an intuitive and flexible way to query a company’s intranet knowledge. In addition to conventional search capabilities, it allows the user to browse through a semi-automatically generated knowledge map that visualizes intranet knowledge as a network/graph structure of semantic relations that are extracted top-down from structured documents, as well as bottom-up from unstructured documents. This paper describes the underlying fuzzy graph data structure, the method for extracting concepts and associations from text documents, and the merging of the resulting data structure with a predefined enterprise ontology.


Enterprise search Knowledge browsing Knowledge map Knowledge graph Fuzziness Association rule mining Connectivism 


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Gwendolin Wilke
    • 1
    Email author
  • Sandro Emmenegger
    • 2
  • Jonas Lutz
    • 2
  • Michael Kaufmann
    • 3
  1. 1.Institute of Business Information Management IWILucerne University of Applied Sciences and ArtsLucerneSwitzerland
  2. 2.Institute for Information SystemsUniversity of Applied Sciences and Arts Northwestern SwitzerlandOltenSwitzerland
  3. 3.School of Engineering and ArchitectureLucerne University of Applied Sciences and ArtsHorwSwitzerland

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