Christina Unger

Publication Activity (10 Years)

Years Active: 2010-2019
Publications (10 Years): 15

Top Topics

Natural Language

Passage Retrieval

Top Venues

CLEF (Working Notes)

NLP-DBPEDIA@ISWC

Publications

Ricardo Usbeck, Michael Röder, Michael Hoffmann, Felix Conrads, Jonathan Huthmann, Axel-Cyrille Ngonga Ngomo, Christian Demmler, Christina Unger
Benchmarking question answering systems. Semantic Web 10 (2) (2019)
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
OKBQA: an Open Collaboration Framework for Development of Natural Language Question-Answering over Knowledge Bases. ISWC (Posters, Demos & Industry Tracks) (2017)
Sebastian Walter, Christina Unger, Philipp Cimiano
Automatic Acquisition of Adjective Lexicalizations of Restriction Classes: a Machine Learning Approach. J. Data Semant. 6 (3) (2017)
Axel-Cyrille Ngonga Ngomo, Christina Unger
Special issue on question answering for Linked Data. Semantic Web 8 (4) (2017)
Christina Unger, Axel-Cyrille Ngonga Ngomo, Elena Cabrio
6th Open Challenge on Question Answering over Linked Data (QALD-6). SemWebEval@ESWC (2016)
Bettina Lanser, Christina Unger, Philipp Cimiano
Crowdsourcing Ontology Lexicons. LREC (2016)
Mariano Rico, Christina Unger, Philipp Cimiano
Sorry, I only speak natural language: a pattern-based, data-driven and guided approach to mapping natural language queries to SPARQL. IESD@ISWC (2015)
Anselmo Peñas, Christina Unger, Georgios Paliouras, Ioannis A. Kakadiaris
Overview of the CLEF Question Answering Track 2015. CLEF (2015)
Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger
HAWK - Hybrid Question Answering Using Linked Data. ESWC (2015)
Felix Tristram, Sebastian Walter, Philipp Cimiano, Christina Unger
Weasel: a Machine Learning Based Approach to Entity Linking combining different features. NLP-DBPEDIA@ISWC (2015)
Christina Unger, Corina Forascu, Vanessa López, Axel-Cyrille Ngonga Ngomo, Elena Cabrio, Philipp Cimiano, Sebastian Walter
Question Answering over Linked Data (QALD-5). CLEF (Working Notes) (2015)
Sherzod Hakimov, Christina Unger, Sebastian Walter, Philipp Cimiano
Applying Semantic Parsing to Question Answering Over Linked Data: Addressing the Lexical Gap. NLDB (2015)
Sebastian Walter, Christina Unger, Philipp Cimiano
DBlexipedia: A Nucleus for a Multilingual Lexical Semantic Web. NLP-DBPEDIA@ISWC (2015)
Mariano Rico, Christina Unger
Lemonade: A Web Assistant for Creating and Debugging Ontology Lexica. NLDB (2015)
André Freitas, Christina Unger
The Schema-Agnostic Queries (SAQ-2015) Semantic Web Challenge: Task Description. SemWebEval@ESWC (2015)
Anselmo Peñas, Christina Unger, Axel-Cyrille Ngonga Ngomo
Overview of CLEF Question Answering Track 2014. CLEF (2014)
Sebastian Walter, Christina Unger, Philipp Cimiano
ATOLL - A framework for the automatic induction of ontology lexica. Data Knowl. Eng. 94 (2014)
Spiros Georgiladakis, Christina Unger, Elias Iosif, Sebastian Walter, Philipp Cimiano, Euripides G. M. Petrakis, Alexandros Potamianos
Fusion of knowledge-based and data-driven approaches to grammar induction. INTERSPEECH (2014)
Christina Unger, André Freitas, Philipp Cimiano
An Introduction to Question Answering over Linked Data. Reasoning Web (2014)
Christina Unger
The Semantic Representation of Natural Language. M. Levison, G. Lessard, C. Thomas, and M. Donald. Lit. Linguistic Comput. 29 (2) (2014)
Sebastian Walter, Christina Unger, Philipp Cimiano
Speeding Up Multilingual Grammar Development by Exploiting Linked Data to Generate Pre-terminal Rules. NLDB (2014)
Christina Unger, Corina Forascu, Vanessa López, Axel-Cyrille Ngonga Ngomo, Elena Cabrio, Philipp Cimiano, Sebastian Walter
Question Answering over Linked Data (QALD-4). CLEF (Working Notes) (2014)
John P. McCrae, Francesca Quattri, Christina Unger, Philipp Cimiano
Modelling the Semantics of Adjectives in the Ontology-Lexicon Interface. CogALex@COLING (2014)
Sebastian Walter, Christina Unger, Philipp Cimiano
M-ATOLL: A Framework for the Lexicalization of Ontologies in Multiple Languages. ISWC (1) (2014)
Konrad Höffner, Christina Unger, Lorenz Bühmann, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Philipp Cimiano
User Interface for a Template Based Question Answering System. KESW (2013)
Elena Cabrio, Philipp Cimiano, Vanessa López, Axel-Cyrille Ngonga Ngomo, Christina Unger, Sebastian Walter
QALD-3: Multilingual Question Answering over Linked Data. CLEF (Working Notes) (2013)
Philipp Cimiano, Janna Lüker, David Nagel, Christina Unger
Exploiting Ontology Lexica for Generating Natural Language Texts from RDF Data. ENLG (2013)
Vanessa López, Christina Unger, Philipp Cimiano, Enrico Motta
Evaluating question answering over linked data. J. Web Semant. 21 (2013)
Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger, Jens Lehmann, Daniel Gerber
SPARQL2NL: verbalizing sparql queries. WWW (Companion Volume) (2013)
Sebastian Walter, Christina Unger, Philipp Cimiano
A Corpus-Based Approach for the Induction of Ontology Lexica. NLDB (2013)
Christina Unger, John P. McCrae, Sebastian Walter, Sara Winter, Philipp Cimiano
A lemon lexicon for DBpedia. NLP-DBPEDIA@ISWC (2013)
Philipp Cimiano, Vanessa López, Christina Unger, Elena Cabrio, Axel-Cyrille Ngonga Ngomo, Sebastian Walter
Multilingual Question Answering over Linked Data (QALD-3): Lab Overview. CLEF (2013)
Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger, Jens Lehmann, Daniel Gerber
Sorry, i don't speak SPARQL: translating SPARQL queries into natural language. WWW (2013)
Giuseppe Riccardi, Philipp Cimiano, Alexandros Potamianos, Christina Unger
Up from Limited Dialog Systems! SDCTD@NAACL-HLT (2012)
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
deqa: Deep Web Extraction for Question Answering. ISWC (2) (2012)
Christina Unger, Lorenz Bühmann, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Philipp Cimiano
Template-based question answering over RDF data. WWW (2012)
Sebastian Walter, Christina Unger, Philipp Cimiano, Daniel Bär
Evaluation of a Layered Approach to Question Answering over Linked Data. ISWC (2) (2012)
Christina Unger
Dynamic Semantics as Monadic Computation. JSAI-isAI Workshops (2011)
Christina Unger, Philipp Cimiano
Representing and resolving ambiguities in ontology-based question answering. TextInfer@EMNLP (2011)
Christina Unger, Philipp Cimiano
Pythia: Compositional Meaning Construction for Ontology-Based Question Answering on the Semantic Web. NLDB (2011)
Christina Unger, Felix Hieber, Philipp Cimiano
Generating LTAG grammars from a lexicon/ontology interface. TAG (2010)