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Hans Friedrich Witschel

Hans-Friedrich Witschel – Frieder Witschel

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affiliation: FHNW University of Applied Sciences and Arts Northwestern Switzerland, School of Business, Olten, Switzerland

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2020 – today

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2025
[c50]
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Andreas Martin, Hans Friedrich Witschel, Mona Stockhecke, Patrick Nydegger, Kyrylo Buga:
Discovering Inconsistencies in Documents with Long-Context LLMs. CAiSE Workshops 2025: 105-116
[c49]
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Maja Spahic-Bogdanovic, Hans Friedrich Witschel, Daniele Porumboiu, Piermichele Rosati, Piero Jean Pier Hierro Canchari, Milan Kostic:
iModuleBuddy - A Hybrid AI-Based Academic Planning System. HybridAIMS+CAI (Selected Papers) 2025: 20-28
[c48]
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Corina Masanti, Hans-Friedrich Witschel, Kaspar Riesen:
Boosting Language Models for Real-Word Error Detection. ICPRAM 2025: 318-325
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Janis Grabis, Yves Wautelet, Emanuele Laurenzi, Hans Friedrich Witschel, Peter Haase, Marco Montali, Cristina Cabanillas, Andrea Marrella, Manuel Resinas, Karolin Winter:
Joint Proceedings of the 3rd International Workshop on Hybrid Artificial Intelligence and Enterprise Modelling for Intelligent Information Systems (HybridAIMS 2025) and the 1st Workshop on Compliance in the Era of Artificial Intelligence (CAI 2025) co-located with the 37th International Conference on Advanced Information Systems Engineering (CAiSE 2025), Vienna, Austria, June 16-17, 2025. CEUR Workshop Proceedings 3996, CEUR-WS.org 2025 [contents]
2024
[j5]
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Andreas Trojan, Emanuele Laurenzi, Stephan Jüngling, Sven Roth, Michael Kiessling, Ziad Atassi, Yannick Kadvany, Meinrad Mannhart, Christian Jackisch, Gerd Kullak-Ublick, Hans Friedrich Witschel:
Towards an early warning system for monitoring of cancer patients using hybrid interactive machine learning. Frontiers Digit. Health 6 (2024)
[c47]
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Milan Kostic, Hans Friedrich Witschel, Knut Hinkelmann, Maja Spahic-Bogdanovic:
LLMs in Automated Essay Evaluation: A Case Study. AAAI Spring Symposia 2024: 143-147
[c46]
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Andreas Martin, Charuta Pande, Hans Friedrich Witschel, Judith Mathez:
ChEdBot: Designing a Domain-Specific Conversational Agent in a Simulational Learning Environment Using LLMs. AAAI Spring Symposia 2024: 180-187
[c45]
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Andreas Martin, Hans Friedrich Witschel, Maximilian Mandl, Mona Stockhecke:
Semantic Verification in Large Language Model-based Retrieval Augmented Generation. AAAI Spring Symposia 2024: 188-192
[c44]
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David Mäder, Maja Spahic-Bogdanovic, Hans Friedrich Witschel:
Student Performance Prediction Model Based on Course Description and Student Similarity. CAiSE Workshops 2024: 97-108
[c43]
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Corina Masanti, Hans Friedrich Witschel, Kaspar Riesen:
Automated Error Detection Through Specialized Task Implementation. ICPRAI (2) 2024: 182-195
[c42]
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Erik Murtaj, Michela Quadrini, Fausto Marcantoni, Michele Loreti, Hans Friedrich Witschel:
Real-Time Intrusion Detection via Machine Learning Approaches. Ital-IA 2024: 200-205
2023
[c41]
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Hans Friedrich Witschel, Emanuele Laurenzi, Stephan Jüngling, Y. Kadvany, Andreas Trojan:
An Early Warning System that combines Machine Learning and a Rule-Based Approach for the Prediction of Cancer Patients' Unplanned Visits. AAAI Spring Symposium: MAKE 2023
[c40]
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Corina Masanti, Hans Friedrich Witschel, Kaspar Riesen:
Novel Benchmark Data Set for Automatic Error Detection and Correction. NLDB 2023: 511-521
2022
[c39]
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Markus Lochbrunner, Hans Friedrich Witschel:
Combining Machine Learning With Human Knowledge for Delivery Time Estimations. AAAI Spring Symposium: MAKE 2022
[c38]
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Loris Grether, Hans Friedrich Witschel:
Studying Interaction Patterns for Knowledge Graph Exploration. KDIR 2022: 257-264
2021
[c37]
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Charuta Pande, Hans Friedrich Witschel, Andreas Martin, Devid Montecchiari:
Hybrid Conversational AI for Intelligent Tutoring Systems. AAAI Spring Symposium: Combining Machine Learning with Knowledge Engineering 2021
[c36]
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Hans Friedrich Witschel, Kaspar Riesen, Loris Grether:
Natural Language-based User Guidance for Knowledge Graph Exploration: A User Study. KDIR 2021: 95-102
[i3]
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Charuta Pande, Hans Friedrich Witschel, Andreas Martin:
New Hybrid Techniques for Business Recommender Systems. CoRR abs/2109.13922 (2021)
2020
[c35]
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Hans Friedrich Witschel, Kaspar Riesen, Loris Grether:
KvGR: A Graph-Based Interface for Explorative Sequential Question Answering on Heterogeneous Information Sources. ECIR (1) 2020: 760-773
[c34]
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Kaspar Riesen, Hans Friedrich Witschel, Loris Grether:
A Novel Data Set for Information Retrieval on the Basis of Subgraph Matching. S+SSPR 2020: 205-215

2010 – 2019

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2019
[c33]
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Hans Friedrich Witschel, Andreas Martin:
Learning and Engineering Similarity Functions for Business Recommenders and Clustering. AAAI Spring Symposium: Combining Machine Learning with Knowledge Engineering 2019
[c32]
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Hans Friedrich Witschel, Marco Peter, Laura Seiler, Soyhan Parlar, Stella Gatziu Grivas:
Case Model for the RoboInnoCase Recommender System for Cases of Digital Business Transformation: Structuring Information for a Case of Digital Change. KMIS 2019: 62-73
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Terry Inglese, Michael von Kutzschenbach, Hans Friedrich Witschel:
Enhancing reflective practices within business management education: what kinds of e-learning scenarios can be designed? IC4E 2019: 108-113
2018
[j4]
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Alessio Ferrari, Hans Friedrich Witschel, Giorgio Oronzo Spagnolo, Stefania Gnesi:
Improving the quality of business process descriptions of public administrations: Resources and research challenges. Bus. Process. Manag. J. 24(1): 49-66 (2018)
[c30]
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Christian Rudolf von Rohr, Hans Friedrich Witschel, Andreas Martin:
Training and Re-using Human Experience: A Recommender for More Accurate Cost Estimates in Project Planning. KMIS 2018: 50-60
[c29]
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Hans Friedrich Witschel, Andreas Martin:
Random Walks on Human Knowledge: Incorporating Human Knowledge into Data-Driven Recommenders. KMIS 2018: 61-70
[c28]
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Prajakta Diwanji, Knut Hinkelmann, Hans Friedrich Witschel:
Enhance Classroom Preparation for Flipped Classroom using AI and Analytics. ICEIS (1) 2018: 477-483
2016
[j3]
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Hans Friedrich Witschel, Andreas Martin, Sandro Emmenegger, Jonas Lutz:
A new Retrieval Function for Ontology-Based Complex Case Descriptions. Trans. Case Based Reason. 5(1): 3-18 (2016)
[c27]
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Ulf Sanne, Hans Friedrich Witschel, Alessio Ferrari, Stefania Gnesi:
Ensuring Action: Identifying Unclear Actor Specifications in Textual Business Process Descriptions. KMIS 2016: 140-147
[c26]
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Sandro Emmenegger, Knut Hinkelmann, Barbara Thönssen, Frieder Witschel:
KPIs 4 Workplace Learning. KMIS 2016: 263-270
[c25]
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Sandro Emmenegger, Knut Hinkelmann, Emanuele Laurenzi, Andreas Martin, Barbara Thönssen, Hans Friedrich Witschel, Congyu Zhang:
An Ontology-Based and Case-Based Reasoning Supported Workplace Learning Approach. MODELSWARD (Revised Selected Papers) 2016: 333-354
[c24]
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Sandro Emmenegger, Knut Hinkelmann, Emanuele Laurenzi, Barbara Thönssen, Hans Friedrich Witschel, Congyu Zhang:
Workplace Learning - Providing Recommendations of Experts and Learning Resources in a Context-sensitive and Personalized Manner - An Approach for Ontology Supported Workplace Learning. MODELSWARD 2016: 753-763
2015
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Daniel Schweizer, Michael Zehnder, Holger Wache, Hans Friedrich Witschel, Danilo Zanatta, Miguel Rodriguez:
Using Consumer Behavior Data to Reduce Energy Consumption in Smart Homes: Applying Machine Learning to Save Energy without Lowering Comfort of Inhabitants. ICMLA 2015: 1123-1129
[c22]
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Pascal von Bergen, Knut Hinkelmann, Hans Friedrich Witschel:
Adapting an Enterprise Architecture for Business Intelligence. PoEM (Short Papers) 2015: 41-50
[c21]
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Hans Friedrich Witschel, Simon Loo, Kaspar Riesen:
How to Support Customer Segmentation with Useful Cluster Descriptions. ICDM 2015: 17-31
[c20]
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Michael Zehnder, Holger Wache, Hans Friedrich Witschel, Danilo Zanatta, Miguel Rodriguez:
Energy saving in smart homes based on consumer behavior: A case study. ISC2 2015: 1-6
[i2]
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Michael Zehnder, Holger Wache, Hans Friedrich Witschel, Danilo Zanatta, Miguel Rodriguez:
Energy saving in smart homes based on consumer behaviour: A case study. CoRR abs/1509.05722 (2015)
[i1]
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Daniel Schweizer, Michael Zehnder, Holger Wache, Hans Friedrich Witschel, Danilo Zanatta, Miguel Rodriguez:
Using consumer behavior data to reduce energy consumption in smart homes. CoRR abs/1510.00165 (2015)
2014
[c19]
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Hans Friedrich Witschel, Barbara Thönssen, Jonas Lutz:
Where Did I(T) Put It? - A Holistic Solution to the Automatic Construction of Topic Trees for Navigation. KMIS 2014: 194-202
2013
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Jonas Lutz, Barbara Thönssen, Hans Friedrich Witschel:
Breaking free from your information prison: A recommender based on semantically enriched context descriptions. ES 2013: 1-9
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Benjamin Mühleisen, Claudio Schneider, Hans Friedrich Witschel, Christian Gutknecht:
Success Factors of Enterprise 2.0. I-KNOW 2013: 37:1-37:4
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Verónica Rivera-Pelayo, Simone Braun, Uwe V. Riss, Hans Friedrich Witschel, Bo Hu:
Building Expert Recommenders from Email-Based Personal Social Networks. The Influence of Technology on Social Network Analysis and Mining 2013: 129-156
2011
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Simon Brander, Knut Hinkelmann, Bo Hu, Andreas Martin, Uwe V. Riss, Barbara Thönssen, Hans Friedrich Witschel:
Refining Process Models through the Analysis of Informal Work Practice. BPM 2011: 116-131
2010
[j2]
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Hans Friedrich Witschel:
Learning Profiles for Heterogeneous Distributed Information Sources. Comput. Informatics 29(4): 571-584 (2010)
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Hans Friedrich Witschel, Bo Hu, Uwe V. Riss, Barbara Thönssen, Roman Brun, Andreas Martin, Knut Hinkelmann:
A Collaborative Approach to Maturing Process-Related Knowledge. BPM 2010: 343-358
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Maryam Ramezani, Hans Friedrich Witschel, Simone Braun, Valentin Zacharias:
Using Machine Learning to Support Continuous Ontology Development. EKAW 2010: 381-390
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Florian Holz, Hans Friedrich Witschel, Gregor Heinrich, Gerhard Heyer, Sven Teresniak:
An Evaluation Framework for Semantic Search in P2P Networks. IICS 2010: 267-276
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Maryam Ramezani, Hans Friedrich Witschel:
An intelligent system for semi-automatic evolution of ontologies. IEEE Conf. of Intelligent Systems 2010: 73-78

2000 – 2009

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2009
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Bo Hu, Ying Du, Liming Chen, Uwe V. Riss, Hans Friedrich Witschel:
Utilising Task-Patterns in Organisational Process Knowledge Sharing. ASWC 2009: 216-230
2008
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Hans Friedrich Witschel:
Global and local resources für peer-to-perr text retrieval. University of Leipzig, 2008, pp. 1-191
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Hans Friedrich Witschel:
Global term weights in distributed environments. Inf. Process. Manag. 44(3): 1049-1061 (2008)
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Hans Friedrich Witschel:
Ranking information resources in peer-to-peer text retrieval: an experimental study. LSDS-IR 2008: 75-82
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Hans Friedrich Witschel, Florian Holz, Gregor Heinrich, Sven Teresniak:
An Evaluation Measure for Distributed Information Retrieval Systems. ECIR 2008: 607-611
2007
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Hans Friedrich Witschel:
Global resources for peer-to-peer text retrieval. SIGIR 2007: 923
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  - conf/spire/Baeza-YatesJPW07
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Ricardo A. Baeza-Yates, Flavio Junqueira, Vassilis Plachouras, Hans Friedrich Witschel:
Admission Policies for Caches of Search Engine Results. SPIRE 2007: 74-85
2006
[c6]
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Hans Friedrich Witschel:
Carrot and stick: combining information retrieval models. ACM Symposium on Document Engineering 2006: 32
[c5]
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  - conf/fintal/EikenLWRB06
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Unni Cathrine Eiken, Anja Therese Liseth, Hans Friedrich Witschel, Matthias Richter, Chris Biemann:
Ord i Dag: Mining Norwegian Daily Newswire. FinTAL 2006: 512-523
[c4]
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Gregor Heinrich, Sven Teresniak, Hans Friedrich Witschel:
Entwicklung von Testkollektionen für P2P Information Retrieval. GI Jahrestagung (1) 2006: 20-27
2005
[c3]
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Hans Friedrich Witschel, Thomas Böhme:
Evaluating profiling and query expansion methods for P2P information retrieval. P2PIR@CIKM 2005: 1-8
[c2]
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  - conf/geneme/WitschelU05
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Hans Friedrich Witschel, Herwig Unger:
Vernetzung virtueller Gemeinschaften mit P2P-Technologien. GeNeMe 2005: 149-160
[c1]
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Hans Friedrich Witschel, Chris Biemann:
Rigorous dimensionality reduction through linguistically motivated feature selection for text categorization. NODALIDA 2005: 210-217

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