Dimitris Kontokostas

Dimitris Kontokostas
Depiction of Dimitris Kontokostas
Address Work
Augustusplatz 10, 04109 Leipzig
Email Office
Phone Work
+30-6945796255
Fax Work
+49-341-97-32329

@GitHub @Google Scholar @Google+

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, 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

  • 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

Publications

by (Editors: ) [BibTex of ]

News

[CfP] Semantic Web Journal: Special Issue on Question Answering over Linked Data ( 2014-07-14T16:58:46+02:00 by Dr. Axel-C. Ngonga Ngomo)

2014-07-14T16:58:46+02:00 by Dr. Axel-C. Ngonga Ngomo

Dear all, The Semantic Web Journal is launching a special issue on Question Answering over Linked Data, soliciting original papers that * address the challenges involved in question answering over linked data, * present resources and tools to support question answering over linked data, or * describe question answering systems and applications. Read more about "[CfP] Semantic Web Journal: Special Issue on Question Answering over Linked Data"

New Version of FOX ( 2014-07-14T16:57:11+02:00 by Dr. Axel-C. Ngonga Ngomo)

2014-07-14T16:57:11+02:00 by Dr. Axel-C. Ngonga Ngomo

Dear all, We are very pleased to announce a new version of FOX [1]. Several improvements have been carried out: (1) We have fixed minor issues in the code. In addition, we have updated several libraries. (2) As a result, the FOX output parameters have changed minimally. Read more about "New Version of FOX"

AKSW Colloquium “Combination of Topic Modeling and Semantic Web” on Monday, June 30 ( 2014-06-26T10:12:50+02:00 by Konrad Höffner)

2014-06-26T10:12:50+02:00 by Konrad Höffner

Combination of Topic Modeling and Semantic Web On Monday, June 30, at 3.00 p.m. in room Paulinum 702, Michael Röder will present his yearly PhD progress report “Combination of Topic Modeling and Semantic Web”. The presentation addresses the usage of Topic Modeling in the area of Semantic Web. Read more about "AKSW Colloquium “Combination of Topic Modeling and Semantic Web” on Monday, June 30"

AKSW Colloquium Guest Talk “SWeeT Web of Heritage” on Wednesday, July 2 ( 2014-06-26T10:03:13+02:00 by Konrad Höffner)

2014-06-26T10:03:13+02:00 by Konrad Höffner

SWeeT Web of Heritage On Wednesday, July 2, at 1.30 p.m. in room P702, T B Dinesh from Janastu, a non-profit organisation providing free open source software, will present the SWeeT Web of Heritage. Read more about "AKSW Colloquium Guest Talk “SWeeT Web of Heritage” on Wednesday, July 2"

AKSW successful at ESWC 2014 ( 2014-06-03T16:20:48+02:00 RicardoUsbeck)

2014-06-03T16:20:48+02:00 RicardoUsbeck

Greetings! After a week full of exciting presentations, demos, posters and especially keynotes AKSW members are back from the 11th Extended Semantic Web Conference 2014 (ESWC). Furthermore, we bring happy news with us. AKSW members won four prizes this year! Read more about "AKSW successful at ESWC 2014"