Sebastian Hellmann

Sebastian Hellmann Augustusplatz 10, Zimmer P618 04109 Leipzig Tel.:   +49 341 97-32260 E-Mail, Research Group, Workpage, Homepage, rdfs:seeAlso

About Me

Currently I am a researcher at the AKSW/MOLE research group and I am writing my Ph D thesis about Semantic Technologies in Natural Language Processing and Linguistics. This includes converting NLP tool output to RDF (http://nlp2rdf.org), mixing it with knowledge from sources such as DBpedia or Linguistic Knowledge (http://ldl2012.lod2.eu or http://linguistics.okfn.org) and then building applications on top of it.

Student Opportunities (Bachelor / Master Theses)

All current tasks and topics (e.g. Bachelor / Master Thesis) are kept on this separate page:
Student Opportunity page

Topic of my thesis (Feedback welcome, mail me)

• NLP2RDF project page this is also where you will find information about the NLP Interchange Format (NIF)
• The Semantic Gap of Formalized Meaning Synopsis presented at the ESWC Ph D Symposium along with these slides
• Vortrag zur Vorstellung meiner Diss (auf Deutsch)

Groups and Projects

• NLP2RDF – A community project around the NLP Interchange Format (NIF) see here: http://nlp2rdf.org
• NKE – Navigational Knowledge Engineering is a light-weight methodology for low-cost knowledge engineering by a massive user base. The concept was created during my research work on the DL-Learner with the help of Jens Lehmann and Dr. Markus Strohmaier from TU Graz
• OLWG – I'm the organisational coordinator of the Working Group on Open Data in Linguistics. The position is shared with Christian Chiarcos
• Wiktionary 2 RDF – converts Wiktionary to RDF (obviously). This projects is just starting. Some documentation will be created here: http://dbpedia.org/Wiktionary. We are reusing the mailing list of Wiktionary
• DL-Learner – is a tool for supervised Machine Learning in OWL and Description Logics. I am an active developer for the DL-Learner project.
• DBpedia – is a community effort to extract structured information from Wikipedia and to make this information available on the Web. I started development of the DBpedia-Live extraction, which is now done by my colleague Mohamed. I'm a member and founder of the DBpedia Internationalization Commitee

Slides

Have a look at my slideshare account

• (will be uploaded to slideshare soon) Vortrag zur Vorstellung meiner Diss (auf Deutsch)
• (will be uploaded to slideshare soon) ODBase 2009
• (will be uploaded to slideshare soon) LSWT 2010

Community Service

PC Chair:

• OKCon 2011 Open Knowledge Conference
• LDL 2012 Linked Data in Linguistics

PC Member:

• ESWC 2010: Semantic Web In Use Track
• ESWC 2011: Linked Open Data – Research Track
• MSW2 2011: Multilingual Semantic Web

I have been reviewing for:

• AIMAS 2010
• CLEF 2009
• Composable Web 2010
• DEXA 2009
• DKE 2011
• Elsevier (JSPE)
• ESWC 2009, 2010, 2011
• I-SEMANTICS 08
• ISCS 2009
• ISWC 2010
• JAI 2011
• KEOD 2009

Publications

Current Working Drafts

These working drafts are already submitted to a conference and will hopefully be accepted:

• Sebastian Hellmann, Jens Lehmann, Jörg Unbehauen, Claus Stadler, Markus Strohmaier Navigational Knowledge Engineering
• Sebastian Hellmann, Jens Lehmann, Sören Auer NIF: An ontology-based and linked-data-aware NLP Interchange Format

Published or To Appear

As it is hard to keep track of everything, my publications are listed in several places:

• Bibsonomy (which we as AKSW maintain manually and which also feeds the exhibit section below, does NOT work with Internet Explorer )
• DBLP
• Google Scholar