Dimitris Kontokostas

Dimitris Kontokostas
Depiction of Dimitris Kontokostas
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Hainstraße 11, 04109 Leipzig
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I am a member of the Agile Knowledge Engineering and Semantic Web (AKSW) Research Group, in pursue of a PhD with a focus on Data Quality, DBpedia and Libraries.

In 2012 I started my PhD studies in the area of Semantic Web, funded by the Dutch national library organization (bibliotheek.nl). Part of my duties were to bootstrap, create and maintain the Dutch DBpedia (nl.dbpedia.org) with the aim to become a hub in the local Dutch LOD cloud. Besides DBpedia, my research focused on Linked Data quality. Along my research publications, I created RDFUnit, an innovative R&D framework for Unit-Testing RDF data that was successfully applied and tested on large scale RDF datasets (e.g. DBpedia, LCSH, LGD, Datos) and integrated in service validation stacks (e.g. NLP2RDF, DataID). RDFUnit is a research & work in progress with the aim to improve it's TRL.

I have been heavily involved in DBpedia, where in 2009 bootstrapped and co-lead the DBpedia Internationalization process. This lead in increasing the coverage of the DBpedia extraction framework to many languages and the the creation of the DBpedia internationalization committee. I created and maintained the Greek and Dutch DBpedia chapters. Since 2013 I took over DBpedia Live where I re-wrote and modularized the core live extraction framework. In addition I am one of the lead developers of the DBpedia Extraction Framework and assist in the coordination of the DBpedia (developer) community.

Since 2013 I lead the efforts of applying DBpedia as a GSoC organization and successfully coordinated many students and mentors in completing their projects. Some of the successfully GSoC projects that I mentored myself include the an Error DBpedia browser, the new DBpedia LD interface, Wikidata2DBpedia integration, porting the DBpedia extraction framework to Hadoop / Spark, extracting rich metadata from Wikimedia Commons.

In March 2014, we finally created a legal entity for DBpedia ( DBpedia Association ) where my active role is to coordinate the next technical directions of the project.

In addition, you can see my

Current Projects

  • ALIGNEDAligned, Quality-centric Software and Data Engineering
  • DBpediaQuerying Wikipedia like a Semantic Database
  • DBpediaDQUser-driven quality evaluation of DBpedia
  • DBpediaDQCrowdCrowdsourcing DBpedia Quality Assessment
  • RDFUnitan RDF Unit-Testing suite
  • TripleCheckMateCrowdsourcing the evaluation of Linked Data


by (Editors: ) [BibTex of ]


ASKW Colloquium, 31 August, 3pm, Dockerizing Linked Data ( 2015-09-01T10:52:04+02:00 by Natanael Arndt)

2015-09-01T10:52:04+02:00 by Natanael Arndt

In this colloquium, Natanael Arndt will present his paper “Knowledge Base Shipping to the Linked Open Data Cloud“. Read more about "ASKW Colloquium, 31 August, 3pm, Dockerizing Linked Data"

ASKW Colloquium, 24 August, 3pm, Lucene, SOLR, FEASIBLE ( 2015-08-24T13:40:58+02:00 by Dr. Amrapali Zaveri)

2015-08-24T13:40:58+02:00 by Dr. Amrapali Zaveri

In this colloquium, first, Kay Müller and Nilesh Chakraborty will give an overview of Lucene and SOLR and how they can be used in information retrieval scenarios, along with a short peek into ElasticSearch, introducing a few recent features, their … Continue reading → Read more about "ASKW Colloquium, 24 August, 3pm, Lucene, SOLR, FEASIBLE"

AKSW has 10 accepted publications in Semantics’2015 conference ( 2015-08-18T13:37:02+02:00 by Ivan Ermilov)

2015-08-18T13:37:02+02:00 by Ivan Ermilov

The Semantics‘2015 conference will take place in Vienna, Austria on September 15-17, 2015. AKSW is happy to announce 10 accepted publications: 6 for research track and 4 for demos/posters track. Read more about "AKSW has 10 accepted publications in Semantics’2015 conference"

AKSW Colloquium, 17-08-2015, Relational Machine Learning for Knowledge Graphs, Zoo Keeper, Apache Mesos ( 2015-08-17T10:58:54+02:00 by Patrick Westphal)

2015-08-17T10:58:54+02:00 by Patrick Westphal

Relational Machine Learning for Knowledge Graphs In this colloquium Patrick Westphal will present the paper “A Review of Relational Machine Learning for Knowledge Graphs” by Nickel, Murphy, Tresp and Gabrilovich. Read more about "AKSW Colloquium, 17-08-2015, Relational Machine Learning for Knowledge Graphs, Zoo Keeper, Apache Mesos"

18 AKSW Papers at ISWC 2015 ( 2015-08-12T03:16:15+02:00 by Muhammad Saleem)

2015-08-12T03:16:15+02:00 by Muhammad Saleem

We are very pleased to announce that AKSW will be presenting 18 papers in the upcoming International Semantic Web Conference (ISWC) 2015. Read more about "18 AKSW Papers at ISWC 2015"