Research Papers

2023

• Lebmeier, Elisabeth; Aßenmacher, Matthias; Heumann, Christian (2023)
  On the Current State of Reproducibility and Reporting of Uncertainty for Aspect-Based Sentiment Analysis
  Machine Learning and Knowledge Discovery in Databases: European Conference, ECML PKDD 2022, Grenoble, France, September 19--23, 2022, Proceedings, Part II, 19.9.22 - 23.9.22, Grenoble (full text available)
  

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2022

• Goschenhofer, Jann; Ragupathy, Pranav; Heumann, Christian; Bischl, Bernd; Aßenmacher, Matthias (2022)
  CC-Top: Constrained Clustering for Dynamic Topic Discovery
  Proceedings of the The First Workshop on Ever Evolving NLP (EvoNLP), 7.12.22 - 11.12.22, Abu Dhabi, UAE (full text available)
  
• Koch, Philipp; Aßenmacher, Matthias; Heumann, Christian (2022)
  Pre-trained language models evaluating themselves - A comparative study
  Proceedings of the Third Workshop on Insights from Negative Results in NLP, 26.05.2022, Dublin (full text available)
  
• Pal, Samyajoy; Heumann, Christian (2022)
  Clustering compositional data using Dirichlet mixture model
  In: PLOS ONE, Vol. 17, No. 5 (full text available)
  

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2021

• Aßenmacher, Matthias; Corvonato, Alessandra; Heumann, Christian (2021)
  Re-Evaluating GermEval17 Using German Pre-Trained Language Models
  Proceedings of the Swiss Text Analytics Conference 2021, 14.06.2021, Winterthur, Switzerland (Online) (full text available)
  
• Aßenmacher, Matthias; Schulze, Patrick; Heumann, Christian (2021)
  Benchmarking down-scaled (not so large) pre-trained language models
  Proceedings of the 17th Conference on Natural Language Processing (KONVENS 2021), 6. - 9. September, Düsseldorf, Germany (full text available)
  
• Lebmeier, Elisabeth; Hou, Naiwen; Spann, Korbinian; Aßenmacher, Matthias (2021)
  Creating a 'customer centricity graph' from unstructured customer feedback
  In: Applied Marketing Analytics, Vol. 6, No. 3: pp. 221-229
  
• Meidinger, Maximilian; Aßenmacher, Matthias (2021)
  A New Benchmark for NLP in Social Sciences: Evaluating the Usefulness of Pre-trained Language Models for Classifying Open-ended Survey Responses
  Proceedings of the 13th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART,, 06.02.2021, Vienna, Austria (Online) (full text available)
  
• Schiergens, Tobias S.; Drefs, Moritz; Dörsch, Maximilian; Kühn, Florian; Albertsmeier, Markus; Niess, Hanno; Schoenberg, Markus B.; Aßenmacher, Matthias; Küchenhoff, Helmut; Thasler, Wolfgang E.; Guba, Markus O.; Angele, Martin K.; Rentsch, Markus; Werner, Jens; Andrassy, Joachim (2021)
  Prognostic Impact of Pedicle Clamping during Liver Resection for Colorectal Metastases
  In: Cancers, Vol. 13, No. 1 (full text available)
  
• Zahid, Faisal Maqbool; Faisal, Shahla; Heumann, Christian (2021)
  Multiple imputation with compatibility for high-dimensional data
  In: PloS one, Vol. 16, No. 7 (full text available)
  

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2020

• Aßenmacher, Matthias; Heumann, Christian (2020)
  On the comparability of pre-trained language models
  5th SwissText & 16th KONVENS Joint Conference, 25.06.2020, Zurich, Switzerland (Online) (full text available)
  
• Guderlei, Maike; Aßenmacher, Matthias (2020)
  Evaluating Unsupervised Representation Learning for Detecting Stances of Fake News
  Proceedings of the 28th International Conference on Computational Linguistics, 10.12.2020, Barcelona, Spain (Online) (full text available)
  

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2019

• Aßenmacher, Matthias; Kaiser, Jan Christian; Zaballa, Ignacio; Gasparrini, Antonio; Küchenhoff, Helmut (2019)
  Exposure-lag-response associations between lung cancer mortality and radon exposure in German uranium miners
  In: Radiation and Environmental Biophysics, Vol. 58: pp. 321-336
  
• Sint, Alena; Lutz, Rebecca; Aßenmacher, Matthias; Küchenhoff, Helmut; Kühn, Florian; Faist, Eugen; Bazhin, Alexandr V.; Rentsch, Markus; Werner, Jens; Schiergens, Tobias S. (2019)
  Monocytic HLA-DR expression for prediction of anastomotic leak after colorectal surgery
  In: Journal of the American College of Surgeons, Vol. 229, No. 2: pp. 200-209
  

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2018

• Schomaker, Michael; Heumann, Christian (2018)
  When and when not to use optimal model averaging
  In: Statistical Papers: pp. 1-20
  

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2015

• Obermeier, Viola; Scheipl, Fabian; Heumann, Christian; Wassermann, Joachim; Küchenhoff, Helmut (2015)
  Flexible Distributed Lags for Modeling Earthquake Data
  In: Journal of the Royal Statistical Society, Vol. 64, No. 2: pp. 395-412
  
• Schomaker, Michael; Hogger, Sarah; Johnson, Leigh F.; Hoffmann, Christopher J.; Bärnighausen, Till; Heumann, Christian (2015)
  Simultaneous Treatment of Missing Data and Measurement Error in HIV Research Using Multiple Overimputation
  In: Epidemiology, Vol. 26, No. 5: pp. 628-636
  

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2014

• Arweiler, Nicole B.; Netuschil, Lutz; Beier, Daniel; Grunert, Sebastian; Heumann, Christian; Altenburger, Markus J.; Sculean, Anton; Nagy, Katalin; Al-Ahmad, Ali; Auschill, Thorsten M. (2014)
  Action of food preservatives on 14-days dental biofilm formation, biofilm vitality and biofilm-derived enamel demineralisation in situ
  In: Clinical Oral Investigations, Vol. 18, No. 3: pp. 829-838
  
• Kellberger, Jessica; Peters-Weist, Astrid S.; Heinrich, Sabine; Pfeiffer, Susanne; Vogelberg, Christian; Roller, Diana; Genuneit, Jon; Weinmayr, Gudrun; Mutius, Erika von; Heumann, Christian; Nowak, Dennis; Radon, Katja (2014)
  Predictors of workrelated sensitisation, allergic rhinitis and asthma in early work life
  In: European Respiratory Journal, Vol. 44, No. 3: pp. 657-665
  
• Schomaker, Michael; Heumann, Christian (2014)
  Model selection and model averaging after multiple imputation
  In: Computational Statistics and Data Analysis, Vol. 71: pp. 758-770
  
• Wanka, Eva R.; Bayerstadler, Andreas; Heumann, Christian; Nowak, Dennis; Jörres, Rudolf A.; Fischer, Rainald (2014)
  Weather and air pollutants have an impact on patients with respiratory diseases and breathing difficulties in Munich, Germany
  In: International Journal of Biometeorology, Vol. 58, No. 2: pp. 249-262
  

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2013

• Bayerstadler, Andreas; Benstetter, Franz; Heumann, Christian; Winter, Fabian (2013)
  A predictive modeling approach to increasing the economic effectiveness of desease management programs
  In: Health Care Management Science: pp. 1-18
  
• Ohlander, Johan; Huber, Stella M.; Schomaker, Michael; Heumann, Christian; Schierl, Rudolf; Michalke, Bernhard; Jenni, Oskar G.; Caflisch, Jon; Muñoz, Daniel M.; Ehrenstein, Ondine von; Radon, Katja (2013)
  Risk Factors for Mercury Exposure of Children in a Rural Mining Town in Northern Chile
  In: PLOS ONE, Vol. 8, No. 11 (full text available)
  
• Seiler, Christian; Heumann, Christian (2013)
  Microdata imputations and macrodata implications: Evidence from the Ifo Business Survey
  In: Economic Modelling, Vol. 35: pp. 722-733
  
• Wanka, Eva R.; Bayerstadler, Andreas; Heumann, Christian; Nowak, Dennis; Jörres, Rudolf A.; Fischer, Rainald (2013)
  Weather and air pollutants have an impact on patients with respiratory diseases and breathing difficulties in Munich, Germany
  In: International Journal of Biometeorology: pp. 1-14
  
• Zahid, Faisal M.; Ramzan, Shalah; Heumann, Christian (2013)
  Regularized proportional odds models
  In: Journal of Statistical Computation and Simulation: pp. 1-18
  

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2012

• Ferrari, Uta; Exner, Teresa; Wanka, Eva R.; Bergemann, Christoph; Meyer-Arnek, Julian; Hildenbrand, Beate; Tufman, Amanda; Heumann, Christian; Huber, Rudof M.; Bittner, Michael; Fischer, Rainald (2012)
  Influence of air pressure, humidity, solar radiation, temperature and wind speed on ambulatory visits due to chronic obstructive pulmonary disease in Bavaria, Germany
  In: International Journal of Biometeorology, Vol. 56, No. 1: pp. 137-143
  
• Kellberger, Jessica; Dressel, Holger; Vogelberg, Christian; Leupold, Wolfgang; Windstetter, Doris; Weinmayr, Gudrun; Genuneit, Jon; Heumann, Christian; Nowak, Dennis; Mutius, Erika von; Radon, Katja (2012)
  Prediction of the incidence and persistence of allergic rhinitis in adolescence: A prospective cohort study
  In: Journal of Allergy and Clinical Immunology, Vol. 129, No. 2: pp. 397-402
  
• Shalabh, null; Garg, Gaurav; Heumann, Christian (2012)
  Performance of Double k-class Estimators for Coefficients in Linear Regression Models with Non Spherical Disturbances under Asymmetric Losses
  In: Journal of Multivariate Analysis, Vol. 112: pp. 35-47
  
• Shalabh, null; Heumann, Christian (2012)
  Simultaneous Prediction of Actual and Average Values of Study variable Using Stein-rule Estimators
  In: Kumar, K.; Chaturvedi, A. (eds.): Some Recent Developments in Statistical Theory and Application. Boca Raton: Brown Walker Press. pp. 68-81
  
• Zahid, Faisal M.; Heumann, Christian (2012)
  Response shrinkage estimation in multinomial logit models
  In: Journal of Statistical Planning and Inference, Vol. 142, No. 1: pp. 95-109
  

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2011

• Heinrich, Sabine; Thomas, Silke; Heumann, Christian; Kries, Rüdiger von; Radon, Katja (2011)
  The impact of exposure to radio frequency electromagnetic fields on chronic well-being in young people - A cross-sectional study based on personal dosimetry
  In: Environment International, Vol. 37, No. 1: pp. 26-30
  
• Schomaker, Michael; Heumann, Christian (2011)
  Model Averaging in Factor Analysis: An Analysis of Olympic Decathlon Data
  In: Journal of Quantitative Analysis in Sports, Vol. 7, No. 1
  

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2010

• Heinrich, Sabine; Thomas, Silke; Heumann, Christian; Kries, Rüdiger von; Radon, Katja (2010)
  Association between exposure to radiofrequency electromagnetic fields assessed by dosimetry and acute symptoms in children and adolescents: A population based cross-sectional study
  In: Environmental Health, Vol. 9, No. 75
  
• Heumann, Christian (2010)
  James-Stein estimator
  In: Lovric, Miodrag (eds.): International Encyclopedia of Statistical Science. Berlin: Springer. pp. 699-701
  
• Heumann, Christian; Grenke, Moritz (2010)
  An efficient model averaging procedure for logistic regression models using a bayesian estimator with laplace prior
  In: Kneib, Thomas; Tutz, Gerhard (eds.): Statistical Modelling and Regression Structures - Festschrift in Honour of Ludwig Fahrmeir. Heidelberg: Physica-Verlag. pp. 79-90
  
• Heumann, Christian; Schomaker, Michael (2010)
  Multiple imputation
  In: Lovric, Miodrag (eds.): International Encyclopedia of Statistical Science. Berlin: Springer. pp. 892-895
  
• Lorenz, Katrin; Bruhn, Gerlinde; Netuschil, Lutz; Heumann, Christian; Hoffmann, Thomas (2010)
  Selection of designs and parameters for clinical trials on mouth rinses
  In: British Journal of Clinical Pharmacology, Vol. 70, No. s1: pp. 21
  
• Schomaker, Michael; Wan, Alan T. K.; Heumann, Christian (2010)
  Frequentist model averaging with missing observations
  In: Computational Statistics & Data Analysis, Vol. 54, No. 12, Sp. Iss. SI): pp. 3336-3347
  

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2009

• Kühnlein, Anja; Heumann, Christian; Thomas, Silke; Heinrich, Sabine; Radon, Katja (2009)
  Personal exposure to mobile communication networks and well-being in children - A statistical analysis based on a functional approach
  In: Bioelectromagnetics, Vol. 30, No. 4: pp. 261-269