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Hans Friedrich Witschel

Frieder Witschel

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affiliation: Fachhochschule Nordwestschweiz

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2020 – today

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2024
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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
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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
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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
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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
[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, A. 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
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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
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Loris Grether, Hans Friedrich Witschel:
Studying Interaction Patterns for Knowledge Graph Exploration. KDIR 2022: 257-264
2021
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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
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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
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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
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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
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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
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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
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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)
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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
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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
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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
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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
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Hans Friedrich Witschel, Simon Loo, Kaspar Riesen:
How to Support Customer Segmentation with Useful Cluster Descriptions. ICDM 2015: 17-31
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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
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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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Ricardo A. Baeza-Yates, Flavio Junqueira, Vassilis Plachouras, Hans Friedrich Witschel:
Admission Policies for Caches of Search Engine Results. SPIRE 2007: 74-85
2006
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Hans Friedrich Witschel:
Carrot and stick: combining information retrieval models. ACM Symposium on Document Engineering 2006: 32
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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
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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
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Hans Friedrich Witschel, Thomas Böhme:
Evaluating profiling and query expansion methods for P2P information retrieval. P2PIR@CIKM 2005: 1-8
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Hans Friedrich Witschel, Herwig Unger:
Vernetzung virtueller Gemeinschaften mit P2P-Technologien. GeNeMe 2005: 149-160
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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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