Christina Unger


Crowdsourcing Ontology Lexicons
Bettina Lanser | Christina Unger | Philipp Cimiano
Proceedings of the Tenth International Conference on Language Resources and Evaluation (LREC'16)

In order to make the growing amount of conceptual knowledge available through ontologies and datasets accessible to humans, NLP applications need access to information on how this knowledge can be verbalized in natural language. One way to provide this kind of information are ontology lexicons, which apart from the actual verbalizations in a given target language can provide further, rich linguistic information about them. Compiling such lexicons manually is a very time-consuming task and requires expertise both in Semantic Web technologies and lexicon engineering, as well as a very good knowledge of the target language at hand. In this paper we present an alternative approach to generating ontology lexicons by means of crowdsourcing: We use CrowdFlower to generate a small Japanese ontology lexicon for ten exemplary ontology elements from the DBpedia ontology according to a two-stage workflow, the main underlying idea of which is to turn the task of generating lexicon entries into a translation task; the starting point of this translation task is a manually created English lexicon for DBpedia. Comparison of the results to a manually created Japanese lexicon shows that the presented workflow is a viable option if an English seed lexicon is already available.

pdf bib
Proceedings of the Open Knowledge Base and Question Answering Workshop (OKBQA 2016)
Key-Sun Choi | Christina Unger | Piek Vossen | Jin-Dong Kim | Noriko Kando | Axel-Cyrille Ngonga Ngomo
Proceedings of the Open Knowledge Base and Question Answering Workshop (OKBQA 2016)


pdf bib
Grammar Engineering for a Customer: a Case Study with Five Languages
Aarne Ranta | Christina Unger | Daniel Vidal Hussey
Proceedings of the Grammar Engineering Across Frameworks (GEAF) 2015 Workshop


Modelling the Semantics of Adjectives in the Ontology-Lexicon Interface
John P. McCrae | Francesca Quattri | Christina Unger | Philipp Cimiano
Proceedings of the 4th Workshop on Cognitive Aspects of the Lexicon (CogALex)


pdf bib
Exploiting Ontology Lexica for Generating Natural Language Texts from RDF Data
Philipp Cimiano | Janna Lüker | David Nagel | Christina Unger
Proceedings of the 14th European Workshop on Natural Language Generation


pdf bib
Up from Limited Dialog Systems!
Giuseppe Riccardi | Philipp Cimiano | Alexandros Potamianos | Christina Unger
NAACL-HLT Workshop on Future directions and needs in the Spoken Dialog Community: Tools and Data (SDCTD 2012)


Representing and resolving ambiguities in ontology-based question answering
Christina Unger | Philipp Cimiano
Proceedings of the TextInfer 2011 Workshop on Textual Entailment


Generating LTAG grammars from a lexicon/ontology interface
Christina Unger | Felix Hieber | Philipp Cimiano
Proceedings of the 10th International Workshop on Tree Adjoining Grammar and Related Frameworks (TAG+10)