Christian Wartena

ORCID

Publication Activity (10 Years)

Years Active: 1998-2022
Publications (10 Years): 20

Top Venues

University of Potsdam, Germany (PHD)

Education History

University of Potsdam, Germany

PHD

Publications

Jean Charbonnier, Christian Wartena
Predicting Visible Terms from Image Captions using Concreteness and Distributional Semantics. KDIR (2022)
Christian Wartena
On the Geometry of Concreteness. RepL4NLP@ACL (2022)
Frieda Josi, Christian Wartena, Ulrich Heid
Representing Standard Text Formulations as Directed Graphs. ICDAR Workshops (2) (2021)
Jean Charbonnier, Christian Wartena
Predicting the Concreteness of German Words. SwissText/KONVENS (2020)
Christian Wartena, Uwe Sander, Christiane Patzelt
Sentiment Independent Topic Detection in Rated Hospital Reviews. IWCS (2) (2019)
Frieda Josi, Christian Wartena, Ulrich Heid
Detecting Paraphrases of Standard Clause Titles in Insurance Contracts. RELATIONS@IWCS (2019)
Jean Charbonnier, Christian Wartena
Predicting Word Concreteness and Imagery. IWCS (1) (2019)
Christian Wartena
A Probabilistic Morphology Model for German Lemmatization. KONVENS (2019)
Frieda Josi, Christian Wartena, Jean Charbonnier
Text-Based Annotation of Scientific Images Using Wikimedia Categories. DEXA Workshops (2018)
Jean Charbonnier, Lucia Sohmen, John Rothman, Birte Rohden, Christian Wartena
NOA: A Search Engine for Reusable Scientific Images Beyond the Life Sciences. ECIR (2018)
Frieda Josi, Christian Wartena
Structural Analysis of Contract Renewals. CIKM Workshops (2018)
Jean Charbonnier, Christian Wartena
Using Word Embeddings for Unsupervised Acronym Disambiguation. COLING (2018)
Lucia Sohmen, Jean Charbonnier, Ina Blümel, Christian Wartena, Lambert Heller
Figures in Scientific Open Access Publications. TPDL (2018)
Andreas Lüschow, Christian Wartena
Classifying Medical Literature Using k-Nearest-Neighbours Algorithm. NKOS@TPDL (2017)
Rosa Tsegaye Aga, Christian Wartena, Lucas Drumond, Lars Schmidt-Thieme
Learning Thesaurus Relations from Distributional Features. LREC (2016)
Christian Wartena, Rosa Tsegaye Aga
CogALex-V Shared Task: HsH-Supervised - Supervised similarity learning using entry wise product of context vectors. CogALex@COLING (2016)
Rosa Tsegaye Aga, Lucas Drumond, Christian Wartena, Lars Schmidt-Thieme
Integrating Distributional and Lexical Information for Semantic Classification of Words using MRMF. COLING (2016)
Rosa Tsegaye Aga, Christian Wartena, Michael Franke-Maier
Automatic Recognition and Disambiguation of Library of Congress Subject Headings. TPDL (2016)
Philipp Mayr, Douglas Tudhope, Koraljka Golub, Christian Wartena, Ernesto William De Luca
Editorial for the 15th European Networked Knowledge Organization Systems Workshop (NKOS 2016). NKOS@TPDL (2016)
Rosa Tsegaye Aga, Christian Wartena
Constructing concept clouds from company websites. I-KNOW (2015)
Christian Wartena
On the effect of word frequency on distributional similarity. KONVENS (2014)
Montserrat Garcia-Alsina, Christian Wartena, Sönke Lieberam-Schmidt
Regional Knowledge Maps - Potentials and Challenges. KDIR/KMIS (2013)
Montserrat Garcia-Alsina, Christian Wartena, Sönke Lieberam-Schmidt
Challenges to Construct Regional Knowledge Maps for Territories' Sustainable Development. IC3K (2013)
Christian Wartena
Distributional Similarity of Words with Different Frequencies. DIR (2013)
Christian Wartena, Montserrat Garcia-Alsina
Keyword Extraction from Company Websites for the Development of Regional Knowledge Maps. IC3K (2013)
Christian Wartena
Segmentation Strategies for Passage Retrieval from Internet Video using Speech Transcripts. J. Digit. Inf. Manag. 11 (6) (2013)
Christian Wartena
HsH: Estimating Semantic Similarity of Words and Short Phrases with Frequency Normalized Distance Measures. SemEval@NAACL-HLT (2013)
Christian Wartena, Montserrat Garcia-Alsina
Challenges and Potentials for Keyword Extraction from Company Websites for the Development of Regional Knowledge Maps. KDIR/KMIS (2013)
Maria Eskevich, Gareth J. F. Jones, Christian Wartena, Martha A. Larson, Robin Aly, Thijs Verschoor, Roeland Ordelman
Comparing retrieval effectiveness of alternative content segmentation methods for Internet video search. CBMI (2012)
Christian Wartena, Maike Sommer
Automatic Classification of Scientific Records using the German Subject Heading Authority File (SWD). SDA (2012)
Christian Wartena
Comparing segmentation strategies for efficient video passage retrieval. CBMI (2012)
Christian Wartena, Martha A. Larson
Rich Speech Retrieval Using Query Word Filter. MediaEval (2011)
Christian Wartena, Martin Wibbels
Improving Tag-Based Recommendation by Topic Diversification. ECIR (2011)
Martha A. Larson, Mohammad Soleymani, Pavel Serdyukov, Stevan Rudinac, Christian Wartena, Vanessa Murdock, Gerald Friedland, Roeland Ordelman, Gareth J. F. Jones
Automatic tagging and geotagging in video collections and communities. ICMR (2011)
Christian Wartena, Wout Slakhorst, Martin Wibbels, Zeno Gantner, Christoph Freudenthaler, Chris Newell, Lars Schmidt-Thieme
Keyword-Based TV Program Recommendation. ITWP@IJCAI (2011)
Christian Wartena
Automatic Classification of Social Tags. ECDL (2010)
Christian Wartena, Rogier Brussee, Wout Slakhorst
Keyword Extraction Using Word Co-occurrence. DEXA Workshops (2010)
Christian Wartena, Wout Slakhorst, Martin Wibbels
Selecting keywords for content based recommendation. CIKM (2010)
Luit Gazendam, Christian Wartena, Rogier Brussee
Thesaurus Based Term Ranking for Keyword Extraction. DEXA Workshops (2010)
Christian Wartena, Rogier Brussee, Martin Wibbels
Using Tag Co-occurrence for Recommendation. ISDA (2009)
Christian Wartena, Rogier Brussee
Instanced-Based Mapping between Thesauri and Folksonomies. ISWC (2008)
Christian Wartena, Rogier Brussee
Topic Detection by Clustering Keywords. DEXA Workshops (2008)
Christian Wartena
Storage Products and Linear Control of Derivations. Theory Comput. Syst. 42 (2) (2008)
Christian Wartena, Rogier Brussee, Luit Gazendam, Willem-Olaf Huijsen
Apolda: A Practical Tool for Semantic Annotation. DEXA Workshops (2007)
Christian Wartena
Extending Linear Indexed Grammars. TAG+ (2000)
Christian Wartena
On the Concatenation of One-Turn Pushdowns. Grammars 2 (3) (1999)
Christian Wartena
Grammars with Composite Storages. LACL (1998)

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Publication Activity (10 Years)

Top Topics

Top Venues

Christian Wartena