Johannes Frey

Johannes Frey
Address Work
Goerdelerring 9, Room Institut fuer Angewandte Informatik (InfAI), 2. OG, AKSW/KILT Office, 04109 Leipzig
Email Office
Phone Work
Fax Work



Johannes studied computer science at Leipzig University with focus on database technologies, computer networks & distributed systems and Semantic Web. During his bachelors he worked as a student assistant at the business information systems department for the “Leipzig Data” project and developed PHP-based semantic solutions for publishing and visualizing RDF data. In his bachelor thesis he created a WordPress plugin for the humanities to author, manage, publish and visualize RDF data within WordPress. In the beginning of 2015 he joined the Knowledge Integration and Linked Data Technologies competence center (KILT) of the Institute of Applied Informatics (InfAI) as graduate assistant. Within this work he supported the creation of an open industry knowledge graph in the “Smart Data Web” research project. In his master thesis he evaluated and benchmarked metadata representation models in RDF stores and wrote Java-based tools for flexible metadata storage and querying.

Since August 2017 he is employed as research assistant of Leipzig University in the KILT group.

His primary research interests in the scope of the Semantic Web are:

  • Data integration & knowledge fusion
  • Metadata(management) in knowledge graphs
  • RDF store benchmarking
  • Scalable & distributed data processing architectures

Reviews & PC Memberships

  • reviewer for ISWC 2016 Poster & Demo
  • reviewer for ICWE 2017
  • reviewer for EACL 2017
  • reviewer for ESWC 2017
  • PC member of Poster & Demo track of Semantics 2017


Workshops & Talks

  • Talk about knowledge fusion and id management for DBpedia in "Interlinking and Metadata" Session of semantics17 workshop "A Reliable Linked Data ecosystem for media"


  • practical course of software engineering lecture 2016
  • practical course of software engineering lecture 2017

Current Projects

  • DBpediaQuerying Wikipedia like a Semantic Database
  • NLP2RDFConverting NLP tool output to RDF
  • Smart Data WebCreation of an industry knowledge base for the German industry.



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DBpedia Day @ SEMANTiCS 2022 ( 2022-08-08T11:24:02+02:00 by Julia Holze)

2022-08-08T11:24:02+02:00 by Julia Holze

We are happy to announce that we are partnering again with the SEMANTiCS Conference which will host this year’s DBpedia Day on September 13, 2022. Read more about "DBpedia Day @ SEMANTiCS 2022"

DBpedia Knowledge Engineering PhD Symposium ( 2022-05-02T16:59:37+02:00 by Julia Holze)

2022-05-02T16:59:37+02:00 by Julia Holze

Dear all,  We are excited to invite you to the 1st DBpedia Knowledge Engineering PhD Symposium, organized on July 6th, 2022 in Leipzig, Germany. Read more about "DBpedia Knowledge Engineering PhD Symposium"

Tutorial @ Knowledge Graph Conference 2022 ( 2022-04-25T12:24:06+02:00 by Julia Holze)

2022-04-25T12:24:06+02:00 by Julia Holze

On May 2, 2022 we will organize a tutorial 2.0 at the Knowledge Graph Conference (KGC) 2022. Read more about "Tutorial @ Knowledge Graph Conference 2022"

International Workshop on Data-driven Resilience Research 2022 ( 2022-04-21T14:43:27+02:00 by Julia Holze)

2022-04-21T14:43:27+02:00 by Julia Holze

In the face of continuously changing contextual conditions and ubiquitous disruptive crisis events, the concept of resilience refers to some of the most urgent, challenging, and interesting issues of nowadays society. Read more about "International Workshop on Data-driven Resilience Research 2022"

DBpedia @ Google Summer of Code Program 2022 ( 2022-03-23T14:26:48+01:00 by Julia Holze)

2022-03-23T14:26:48+01:00 by Julia Holze

DBpedia, one of InfAI’s community projects, will be part of the 11th Google Summer of Code (GSoC) program. The GSoC program has the goal to bring students from all over the globe into open source software development. Read more about "DBpedia @ Google Summer of Code Program 2022"