Peer Reviewed Publications
We publish at NLP/CL conferences or venues and Information Systems conferences.
See DBLP or Google Scholar for our recent work.
Selected Publications
- Robust Conformal Prediction for Infrequent Classes. Jens-Michalis Papaioannou*, Sebastian Jäger*, Alexei Figueroa, David Stutz, Betty van Aken, Keno Bressem, Wolfgang Nejdl, Felix Gers, Alexander Löser, Felix Biessmann. TMLR 2026 ( * equal contribution)
- CliniBench: A Clinical Outcome Prediction Benchmark for Generative and Encoder-Based Language Models. Paul Grundmann, Dennis Fast, Jan Frick, Thomas Steffek, Felix Gers, Wolfgang Nejdl, Alexander Löser. EACL 2026
- Robust Weight Imprinting: Insights from Neural Collapse and Proxy-Based Aggregation. Justus Westerhoff, Golzar Atefi, Mario Koddenbrock, Alexei Figueroa, Alexander Löser, Erik Rodner, Felix Alexander Gers. TMLR 2025
- SPONGE: Competing Sparse Language Representations for Effective Cross-Lingual Knowledge Transfer in Healthcare. Jens-Michalis Papaioannou*, Alexei Figueroa*, Conor Fallon, Anna Capilla, Alexandra Bekiaridou, Stavros Zanos, Wolfgang Nejdl, Alexander Löser. TMLR 2025 ( * equal contribution)
- Comply: Learning Sentences with Complex Weights inspired by Fruit Fly Olfaction. Alexei Figueroa, Justus Westerhoff, Golzar Atefi, Dennis Fast, Benjamin Winter, Felix Gers, Alexander Löser. IEEE 2025
- "Where does it hurt?" -- Dataset and Study on Physician Intent Trajectories in Doctor Patient Dialogues. Tom Röhr, Soumyadeep Roy, Fares Al Mohamad, Jens-Michalis Papaioannou, Wolfgang Nejdl, Felix Gers, Alexander Löser. European Conference on AI (ECAI) 2025
- Evaluating Financial Literacy of Large Language Models through Domain Specific Languages for Plain Text Accounting. Alexei Figueroa, Paul Grundmann, Julius Freidank, Wolfgang Nejdl, Alexander Löser. FinNLP Workshop 2025
- Autonomous medical evaluation for guideline adherence of large language models. Dennis Fast*, Lisa C. Adams*, Felix Busch, Conor Fallon, Marc Huppertz, Robert Siepmann, Philipp Prucker, Nadine Bayerl, Daniel Truhn, Marcus Makowski, Alexander Löser and Keno K. Bressem. Nature, NPJ digital medicine 2024 ( * equal contribution)
- Revisiting Clinical Outcome Prediction for MIMIC-IV. Tom Röhr, Alexei Figueroa, Jens-Michalis Papaioannou, Conor Fallon, Keno Bressem, Wolfgang Nejdl, Alexander Löser. ClinicalNLP 2024
- Boosting Long-Tail Data Classification with Sparse Prototypical Networks. Alexei Figueroa*, Jens-Michalis Papaioannou*, Conor Fallon, Alexandra Bekiaridou, Keno Bressem, Stavros Zanos, Felix Gers, Wolfgang Nejdl & Alexander Löser, at ECML PKDD 2024 ( * equal contribution)
- medBERT.de: A comprehensive German BERT model for the medical domain. Keno K. Bressem, Jens-Michalis Papaioannou, Paul Grundmann, Florian Borchert, Lisa C. Adams, Leonhard Liu, Felix Busch, Lina Xu, Jan P. Loyen, Stefan Markus Niehues, Moritz Augustin, Lennart Grosser, Marcus R. Makowski, Hugo J. W. L. Aerts, Alexander Löser. Expert Syst. Appl. 237(Part C): 121598 (2024)
- Data Drift in Clinical Outcome Prediction from Admission Notes. Paul Grundmann, Jens-Michalis Papaioannou, Tom Oberhauser, Thomas Steffek, Amy Siu, Wolfgang Nejdl, Alexander Löser. LREC/COLING 2024: 4381-4391
- DDxGym: Online Transformer Policies in a Knowledge Graph Based Natural Language Environment. Benjamin Winter, Alexei Gustavo Figueroa Rosero, Alexander Löser, Felix Alexander Gers, Nancy Katerina Figueroa Rosero, Ralf Krestel. LREC/COLING 2024: 4438-4448
- MedAlpaca - An Open-Source Collection of Medical Conversational AI Models and Training Data. Tianyu Han, Lisa C. Adams, Jens-Michalis Papaioannou, Paul Grundmann, Tom Oberhauser, Alexander Löser, Daniel Truhn, Keno K. Bressem. CoRR abs/2304.08247 (2023)
- Attention Networks for Augmenting Clinical Text with Support Sets for Diagnosis Prediction. Paul Grundmann, Tom Oberhauser, Felix Gers, Alexander Löser. COLING 2022
- KIMERA: Injecting Domain Knowledge into Vacant Transformer Heads. Benjamin Winter, Alexei Figueroa, Amy Siu, Felix Gers, Alexander Löser. LREC 2022
- Cross-Lingual Knowledge Transfer for Clinical Phenotyping. Jens-Michalis Papaioannou, Paul Grundmann, Betty van Aken, Athanasios Samaras Ilias Kyparissidis, George Giannakoulas, Felix Gers, Alexander Löser. LREC 2022
- Assertion Detection in Clinical Notes: Medical Language Models to the Rescue? Betty van Aken, Ivana Trajanovska, Amy Siu, Manuel Mayrdorfer, Klemens Budde, Alexander Loeser. Proceedings of the Second Workshop on Natural Language Processing for Medical Conversations, NAACL 2021
- Clinical Outcome Prediction from Admission Notes using Self-Supervised Knowledge Integration. Betty van Aken, Jens-Michalis Papaioannou, Manuel Mayrdorfer, Klemens Budde, Felix Gers, Alexander Löser. EACL 2021
- Aspect-based Passage Retrieval with Contextualized Discourse Vectors. Jens-Michalis Papaioannou, Manuel Mayrdorfer, Sebastian Arnold, Felix A. Gers, Klemens Budde and Alexander Löser. ECIR 2021
- VisBERT: Hidden-State Visualizations for Transformers. Betty van Aken, Benjamin Winter, Felix Gers, Alexander Löser. ACM The Web Conference 2020
- Is Language Modeling Enough? Evaluating Effective Embedding Combinations. Rudolf Schneider, Tom Oberhauser, Paul Grundmann, Felix Gers, Alexander Löser, Steffen Staab. LREC 2020
- Discovering Biased News Articles Leveraging Multiple Human Annotations. Konstantina Lazaridou, Maria Rosario Mestre, Alexander Löser, Felix Naumann. LREC 2020
- Learning Contexualized Document Representations for Healthcare Answer Retrieval. Sebastian Arnold, Betty van Aken, Paul Grundmann, Felix A. Gers, Alexander Löser. ACM WWW 2020
- How Does BERT Answer Questions? A Layer-Wise Analysis of Transformer Representations. Betty van Aken, Bejamin Winter, Felix Gers, Alexander Löser. ACMCIKM 2019.
- IDEL: In-Database Neural Entity Linking. Torsten Kilias, Alexander Löser, Felix A. Gers, Ying Zhang, Richard Koopmanschap, Martin L. Kersten. IEEE BigComp 2019: 1-8 (Best Paper Award)
- SECTOR: A Neural Model for Coherent Topic Segmentation and Classification. Sebastian Arnold, Rudolf Schneider, Philippe Cudré-Mauroux, Felix A. Gers, Alexander Löser. TACL 7/2019
- Smart-MD: Neural Paragraph Retrieval of Medical Topics. Rudolf Schneider, Sebastian Arnold, Tom Oberhauser, Tobias Klatt, Thomas Steffek, Alexander Löser. ACM WWW 2018
- RelVis: Benchmarking OpenIE Systems. Rudolf Schneider, Tom Oberhauser, Tobias Klatt, Felix A. Gers, Alexander Löser. International Semantic Web Conference 2017
- Analysing Errors of Open Information Extraction Systems. Rudolf Schneider, Tom Oberhauser, Tobias Klatt, Felix A. Gers, Alexander Löser. CoRRabs/1707.07499 (2017) EMLP Workshops
- TASTY: Interactive Entity Linking As-You-Type. Sebastian Arnold, Robert Dziuba, Alexander Löser. COLING 2016
- Interactive Relation Extraction in Main Memory Database Systems. Rudolf Schneider, Cordula Guder, Torsten Kilias, Alexander Löser, Jens Graupmann, Oleksandr Kozachuk. COLING (Demos) 2016: 103-106
- INDREX: In-database relation extraction. Torsten Kilias, Alexander Löser, Periklis Andritsos. Inf. Syst. 53: 124-144 (2015)
Granted Patents
- Falk Brauer, Hong-Hai Do, Wojciech Barczynski, Alexander Löser, Marcus Schramm, GRAPH BASED RE-COMPOSITION OF DOCUMENT FRAGMENTS FOR NAME ENTITY RECOGNITION UNDER EXPLOITATION OF ENTERPRISE DATABASES
(US 8229883 B2)
- Alexander Löser, Wojtiech Barzcyinski, Falk Brauer: Systems and methods for modular information extraction.
(US 7987416 B2)
- Alexander Löser, Sriram Raghavan, Shivakumar Vaithyanathan: Method and system for automatically generating regular expressions for relaxed matching of text patterns.
(US 8484238 B2)
Under Submission
- Huiyu Zhu, Alexander Löser, Sriram Raghavan and Shiv. Vaithyanathan: Searching navigational pages in an intranet.
(20090192987)
