Christina Unger

According to our database, Christina Unger authored at least 45 papers between 2010 and 2019.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2019

Benchmarking question answering systems.

Ricardo Usbeck, Michael Röder, Michael Hoffmann, Felix Conrads, Jonathan Huthmann, Axel-Cyrille Ngonga Ngomo, Christian Demmler, Christina Unger

Semantic Web, 2019

2017

Special issue on question answering for Linked Data.

Axel-Cyrille Ngonga Ngomo, Christina Unger

Semantic Web, 2017

Automatic Acquisition of Adjective Lexicalizations of Restriction Classes: a Machine Learning Approach.

Sebastian Walter, Christina Unger, Philipp Cimiano

J. Data Semant., 2017

OKBQA: an Open Collaboration Framework for Development of Natural Language Question-Answering over Knowledge Bases.

Jin-Dong Kim, Christina Unger, Axel-Cyrille Ngonga Ngomo, André Freitas, YoungGyun Hahm, Jiseong Kim, Gyu-Hyun Choi, Jeonguk Kim, Ricardo Usbeck, Myoung-Gu Kang, Key-Sun Choi

Proceedings of the ISWC 2017 Posters & Demonstrations and Industry Tracks co-located with 16th International Semantic Web Conference (ISWC 2017), Vienna, Austria, October 23rd - to, 2017

2016

Crowdsourcing Ontology Lexicons.

Bettina Lanser, Christina Unger, Philipp Cimiano

Proceedings of the Tenth International Conference on Language Resources and Evaluation LREC 2016, 2016

6th Open Challenge on Question Answering over Linked Data (QALD-6).

Christina Unger, Axel-Cyrille Ngonga Ngomo, Elena Cabrio

Proceedings of the Semantic Web Challenges - Third SemWebEval Challenge at ESWC 2016, Heraklion, Crete, Greece, May 29, 2016

2015

DBlexipedia: A Nucleus for a Multilingual Lexical Semantic Web.

Sebastian Walter, Christina Unger, Philipp Cimiano

Proceedings of the Third NLP&DBpedia Workshop (NLP & DBpedia 2015) co-located with the 14th International Semantic Web Conference 2015 (ISWC 2015), 2015

Weasel: a Machine Learning Based Approach to Entity Linking combining different features.

Felix Tristram, Sebastian Walter, Philipp Cimiano, Christina Unger

Proceedings of the Third NLP&DBpedia Workshop (NLP & DBpedia 2015) co-located with the 14th International Semantic Web Conference 2015 (ISWC 2015), 2015

Sorry, I only speak natural language: a pattern-based, data-driven and guided approach to mapping natural language queries to SPARQL.

Mariano Rico, Christina Unger, Philipp Cimiano

Proceedings of the 4th International Workshop on Intelligent Exploration of Semantic Data (IESD 2015) co-located with the 14th International Semantic Web Conference (ISWC 2015), 2015

Lemonade: A Web Assistant for Creating and Debugging Ontology Lexica.

Mariano Rico, Christina Unger

Proceedings of the Natural Language Processing and Information Systems, 2015

Applying Semantic Parsing to Question Answering Over Linked Data: Addressing the Lexical Gap.

Sherzod Hakimov, Christina Unger, Sebastian Walter, Philipp Cimiano

Proceedings of the Natural Language Processing and Information Systems, 2015

HAWK - Hybrid Question Answering Using Linked Data.

Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger

Proceedings of the Semantic Web. Latest Advances and New Domains, 2015

The Schema-Agnostic Queries (SAQ-2015) Semantic Web Challenge: Task Description.

André Freitas, Christina Unger

Proceedings of the Semantic Web Evaluation Challenges, 2015

Question Answering over Linked Data (QALD-5).

Christina Unger, Corina Forascu, Vanessa López, Axel-Cyrille Ngonga Ngomo, Elena Cabrio, Philipp Cimiano, Sebastian Walter

Proceedings of the Working Notes of CLEF 2015, 2015

Overview of the CLEF Question Answering Track 2015.

Anselmo Peñas, Christina Unger, Georgios Paliouras, Ioannis A. Kakadiaris

Proceedings of the Experimental IR Meets Multilinguality, Multimodality, and Interaction, 2015

2014

Ontology-Based Interpretation of Natural Language

Philipp Cimiano, Christina Unger, John P. McCrae

Synthesis Lectures on Human Language Technologies, Morgan & Claypool Publishers, ISBN: 978-3-031-02154-1, 2014

The Semantic Representation of Natural Language. M. Levison, G. Lessard, C. Thomas, and M. Donald.

Christina Unger

Lit. Linguistic Comput., 2014

ATOLL - A framework for the automatic induction of ontology lexica.

Sebastian Walter, Christina Unger, Philipp Cimiano

Data Knowl. Eng., 2014

M-ATOLL: A Framework for the Lexicalization of Ontologies in Multiple Languages.

Sebastian Walter, Christina Unger, Philipp Cimiano

Proceedings of the Semantic Web - ISWC 2014, 2014

An Introduction to Question Answering over Linked Data.

Christina Unger, André Freitas, Philipp Cimiano

Proceedings of the Reasoning Web. Reasoning on the Web in the Big Data Era, 2014

Speeding Up Multilingual Grammar Development by Exploiting Linked Data to Generate Pre-terminal Rules.

Sebastian Walter, Christina Unger, Philipp Cimiano

Proceedings of the Natural Language Processing and Information Systems, 2014

Fusion of knowledge-based and data-driven approaches to grammar induction.

Spiros Georgiladakis, Christina Unger, Elias Iosif, Sebastian Walter, Philipp Cimiano, Euripides G. M. Petrakis, Alexandros Potamianos

Proceedings of the INTERSPEECH 2014, 2014

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, 2014

Question Answering over Linked Data (QALD-4).

Christina Unger, Corina Forascu, Vanessa López, Axel-Cyrille Ngonga Ngomo, Elena Cabrio, Philipp Cimiano, Sebastian Walter

Proceedings of the Working Notes for CLEF 2014 Conference, 2014

Overview of CLEF Question Answering Track 2014.

Anselmo Peñas, Christina Unger, Axel-Cyrille Ngonga Ngomo

Proceedings of the Information Access Evaluation. Multilinguality, Multimodality, and Interaction, 2014

Design Patterns for Engineering the Ontology-Lexicon Interface.

John P. McCrae, Christina Unger

Proceedings of the Towards the Multilingual Semantic Web, 2014

A Three-Dimensional Paradigm for Conceptually Scoped Language Technology.

Jeroen van Grondelle, Christina Unger

Proceedings of the Towards the Multilingual Semantic Web, 2014

2013

Evaluating question answering over linked data.

Vanessa López, Christina Unger, Philipp Cimiano, Enrico Motta

J. Web Semant., 2013

SPARQL2NL: verbalizing sparql queries.

Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger, Jens Lehmann, Daniel Gerber

Proceedings of the 22nd International World Wide Web Conference, 2013

Sorry, i don't speak SPARQL: translating SPARQL queries into natural language.

Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger, Jens Lehmann, Daniel Gerber

Proceedings of the 22nd International World Wide Web Conference, 2013

A lemon lexicon for DBpedia.

Christina Unger, John P. McCrae, Sebastian Walter, Sara Winter, Philipp Cimiano

Proceedings of the NLP & DBpedia workshop co-located with the 12th International Semantic Web Conference (ISWC 2013), 2013

A Corpus-Based Approach for the Induction of Ontology Lexica.

Sebastian Walter, Christina Unger, Philipp Cimiano

Proceedings of the Natural Language Processing and Information Systems, 2013

User Interface for a Template Based Question Answering System.

Konrad Höffner, Christina Unger, Lorenz Bühmann, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Philipp Cimiano

Proceedings of the Knowledge Engineering and the Semantic Web, 2013

Exploiting Ontology Lexica for Generating Natural Language Texts from RDF Data.

Philipp Cimiano, Janna Lüker, David Nagel, Christina Unger

Proceedings of the ENLG 2013, 2013

Multilingual Question Answering over Linked Data (QALD-3): Lab Overview.

Philipp Cimiano, Vanessa López, Christina Unger, Elena Cabrio, Axel-Cyrille Ngonga Ngomo, Sebastian Walter

Proceedings of the Information Access Evaluation. Multilinguality, Multimodality, and Visualization, 2013

QALD-3: Multilingual Question Answering over Linked Data.

Elena Cabrio, Philipp Cimiano, Vanessa López, Axel-Cyrille Ngonga Ngomo, Christina Unger, Sebastian Walter

Proceedings of the Working Notes for CLEF 2013 Conference , 2013

2012

Template-based question answering over RDF data.

Christina Unger, Lorenz Bühmann, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Philipp Cimiano

Proceedings of the 21st World Wide Web Conference 2012, 2012

Evaluation of a Layered Approach to Question Answering over Linked Data.

Sebastian Walter, Christina Unger, Philipp Cimiano, Daniel Bär

Proceedings of the Semantic Web - ISWC 2012, 2012

deqa: Deep Web Extraction for Question Answering.

Jens Lehmann, Tim Furche, Giovanni Grasso, Axel-Cyrille Ngonga Ngomo, Christian Schallhart, Andrew Jon Sellers, Christina Unger, Lorenz Bühmann, Daniel Gerber, Konrad Höffner, David Liu, Sören Auer

Proceedings of the Semantic Web - ISWC 2012, 2012

Up from Limited Dialog Systems!

Giuseppe Riccardi, Philipp Cimiano, Alexandros Potamianos, Christina Unger

Proceedings of the Workshop on Future directions and needs in the Spoken Dialog Community: Tools and Data, 2012

2011

Pythia: Compositional Meaning Construction for Ontology-Based Question Answering on the Semantic Web.

Christina Unger, Philipp Cimiano

Proceedings of the Natural Language Processing and Information Systems, 2011

Dynamic Semantics as Monadic Computation.

Christina Unger

Proceedings of the New Frontiers in Artificial Intelligence, 2011

Representing and resolving ambiguities in ontology-based question answering.

Christina Unger, Philipp Cimiano

Proceedings of the Workshop on Textual Entailment, 2011

2010

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, 2010

Computational Semantics with Functional Programming.

Jan van Eijck, Christina Unger

Cambridge University Press, ISBN: 978-0-521-75760-7, 2010