Professor Ralf Krestel

Information Profiling and Retrieval

E-mail
T: +49 431 8814-273
Düsternbrooker Weg 120
24105 Kiel

Function

  • Professor for Information Profiling and Retrieval

Key activities

  • Text Mining
  • Information Retrieval
  • Recommender Systems
  • Natural Language Processing
  • Information Extraction
  • Machine Learning
  • Deep Neural Networks
  • Topic Modeling
  • Knowledge Graphs

Professional background

  • Since 2021
    Professor for Information Retrieval and Profiling, ZBW, Christian-Albrechts-Universität zu Kiel
  • 2019 - 2020
    Visiting professor; University Passau
  • 2015 - 2021
    Head of Web Science Research Group; HPI, University Potsdam
  • 2014
    Postdoc; Hasso Plattner Institut (HPI), Potsdam
  • 2013 - 2014
    Postdoc; University of California, Irvine
  • 2007 - 2012
    Doctorate; L3S, Leibniz University Hannover
  • 2007
    Diploma thesis; Concordia University, Montreal
  • 2001 - 2007
    Diploma in Computer Science; University Karlsruhe (TH)

Publications

Conference Papers (peer reviewed)

Rajendram Bashyam, Lakshmi / Krestel, Ralf
Advancing Automatic Subject Indexing: Combining Weak Supervision with Extreme Multi-label Classification
In: Natural Scientific Language Processing and Research Knowledge Graphs, Lecture Notes in Computer Science, Cham: Springer, 2024, pp. 214-223, doi:10.1007/978-3-031-65794-8_14 Link to fulltext (PDF)
Davari, Dennis / Ermakova, Liana / Krestel, Ralf
Comparative Analysis of Evaluation Measures for Scientific Text Simplification
In: Linking Theory and Practice of Digital Libraries. TPDL 2024, Lecture Notes in Computer Science, Cham: Springer, 2024, pp. 76-91, doi:10.1007/978-3-031-72437-4_5 Link to fulltext (PDF)
Krestel, Ralf / Aras, Hidir / Andersson, Linda / Piroi, Florina / Hanbury, Allan / Alderucci, Dean
5th Workshop on Patent Text Mining and Semantic Technologies (PatentSemTech2024)
In: SIGIR '24: Proceedings of the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval New York, NY: ACM, 2024, pp. 3021-3024, doi:10.1145/3626772.3657986 Link to fulltext (PDF)
Winter, Benjamin / Figueroa Rosero, Alexei Gustavo / Loeser, Alexander / Gers, Felix Alexander / Figueroa Rosero, Nancy Katerina / Krestel, Ralf
DDxGym: Online Transformer Policies in a Knowledge Graph Based Natural Language Environment
In: Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024) Paris: ELRA and ICCL, 2024, pp. 4428-4448 Link to fulltext (PDF)
Anjum, Aftab / Krestel, Ralf
Fine-Tuning BERT On Coarse-Grained Labels: Exploring Hidden States For Fine-Grained Classification
In: Natural Language Processing and Information Systems. NLDB 2024, Lecture Notes in Computer Science, Cham: Springer, 2024, pp. 1-15, doi:10.1007/978-3-031-70239-6_1 Link to fulltext (PDF)
Yoshikawa, Naoya / Krestel, Ralf
Improving Patent Classification using AI-Generated Summaries
In: Proceedings of the 5th Workshop on Patent Text Mining and Semantic Technologies (PatentSemTech 2024) co-located with the 47th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2024), CEUR Workshop Proceedings, Aachen: RWTH, 2024, pp. 8-17 Link to fulltext (PDF)
Sierra-Múnera, Alejandro / Krestel, Ralf
SHACT: Disentangling and Clustering Latent Syntactic Structures from Transformer Encoders
In: Natural Language Processing and Information Systems. NLDB 2024, Lecture Notes in Computer Science, Cham: Springer, 2024, pp. 364-378, doi:10.1007/978-3-031-70239-6_25 Link to fulltext (PDF)
Bhadauria, Divya / Sierra-Múnera, Alejandro / Krestel, Ralf
The Effects of Data Quality on Named Entity Recognition
In: Proceedings of the Ninth Workshop on Noisy and User-generated Text (W-NUT 2024) Stroudsburg, PA: ACL, 2024, pp. 79–88 Link to fulltext (PDF)
Sammet, Jill / Krestel, Ralf
Domain-Specific Keyword Extraction using BERT
In: Proceedings of the 4th Conference on Language, Data and Knowledge (LDK 2023) Lisbon: NOVA FCSH-CLUNL, 2023, pp. 659-665, doi:10.34619/srmk-injj Link to fulltext (PDF)
Krestel, Ralf / Aras, Hidir / Andersson, Linda / Piroi, Florina / Hanbury, Allan / Alderucci, Dean
4th Workshop on Patent Text Mining and Semantic Technologies (PatentSemTech2023)
In: SIGIR 2023, 4th Workshop on Patent Text Mining and Semantic Technologies (PatentSemTech2023) New York: ACM, 2023, pp. 3483-3486, doi:10.1145/3539618.3591929 Link to fulltext (PDF)
Belaid, Mohamed Karim / Rabus, Maximilian / Krestel, Ralf / Hüllermeier, Eyke
Compare-xAI: Toward Unifying Functional Testing Methods for Post-hoc XAI Algorithms into a Multi-dimensional Benchmark
In: Explainable Artificial Intelligence, First World Conference, xAI 2023, Lisbon, Portugal, July 26–28, 2023, Proceedings, Part II, Communications in Computer and Information Science (CCIS), Berlin: Springer Nature, 2023, pp. 88-109, doi:10.1007/978-3-031-44067-0_5 Link to fulltext (PDF)
Sierra-Múnera, Alejandro / Westphal, Jan / Krestel, Ralf
Efficient Ultrafine Typing of Named Entities
In: Proceedings of the Joint Conference on Digital Libraries (JCDL) 2023 New York: ACM, 2023, pp. 205-214, doi:10.1109/JCDL57899.2023.00038 Link to fulltext (PDF)
Krestel, Ralf / Aras, Hidir / Andersson, Linda / Piroi, Florina / Hanbury, Allan / Alderucci, Dean
3rd Workshop on Patent Text Mining and Semantic Technologies (PatentSemTech)
In: SIGIR '22: Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval New York, NY: ACM, 2022, pp. 3474-3477, doi:10.1145/3477495.3531702 Link to fulltext (PDF)
Dobler, Konstantin / Hübscher, Florian / Westphal, Jan / Sierra-Múnera, Alejandro / de Melo, Gerard / Krestel, Ralf
Art Creation with Multi-Conditional StyleGANs
In: Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence AI and Arts (IJCAI-22) s.l.: IJCAI, 2022, pp. 4936-4942, doi:10.24963/ijcai.2022/684 Link to fulltext (PDF)
Jain, Nitisha / Krestel, Ralf
Discovering Fine-Grained Semantics in Knowledge Graph Relations
In: CIKM '22: Proceedings of the 31st ACM International Conference on Information & Knowledge Management New York, NY: ACM, 2022, pp. 822-831, doi:10.1145/3511808.3557287 Link to fulltext (PDF)
Jain, Nitisha / Sierra-Múnera, Alejandro / Streit, Julius / Thormeyer, Simon / Schmidt, Philipp / Lomaeva, Maria / Krestel, Ralf
Generating Domain-Specific Knowledge Graphs: Challenges with Open Information Extraction
In: Proceedings of the 1st International Workshop on Knowledge Graph Generation From Text and the 1st International Workshop on Modular Knowledge co-located with 19th Extended Semantic Conference (ESWC 2022), CEUR Workshop Proceedings, Aachen: RWTH, 2022, Link to fulltext (PDF)
Repke, Tim / Krestel, Ralf
Interactive Curation of Semantic Representations in Digital Libraries
In: Towards Open and Trustworthy Digital Societies. ICADL 2021, Lecture Notes in Computer Science, Cham: Springer, 2021, pp. 219-229, doi:10.1007/978-3-030-91669-5_18 Link to fulltext (PDF)

Articles (peer reviewed)

Sierra-Múnera, Alejandro / Le, Linh / Demartini, Gianluca / Krestel, Ralf
MELArt: A Multimodal Entity Linking Dataset for Art
In: Transactions on Graph Data and Knowledge (TGKD) - Dagstuhl: Schloss Dagstuhl - Leibniz Center for Informatics, ISSN 2942-7517, Vol. 2 (2024), No. 2 (Article No.:) 8,, doi:10.4230/TGDK.2.2.8 Link to fulltext (PDF)
Jain, Nitisha / Sierra-Múnera, Alejandro / Ehmueller, Jan / Krestel, Ralf
Generation of training data for named entity recognition of artworks
In: Semantic Web - Amsterdam: IOS Press, ISSN 2210-4968, Vol. 14 (2023), No. 2, pp. 239-260, doi:10.3233/SW-223177 Link to fulltext (PDF)
Krestel, Ralf / Kuhn, Annegret / Hasselbring, Wilhelm
Data-driven analysis and prediction of norm acceptance
In: Informatik Spektrum - Berlin: Springer, ISSN 1432-122X, Vol. 45 (2022), pp. 240–245, doi:10.1007/s00287-022-01472-1 Link to fulltext (PDF)

Working papers, Reports and other Contributions

Krestel, Ralf / Kruschwitz, Udo / Wiegand, Michael / Härder, Theo
Editorial
In: Datenbank-Spektrum - Berlin: Springer, Vol. 23 (2023), No. 1, pp. 1-3, ISSN 1618-2162, doi:10.1007/s13222-023-00442-5 Link to fulltext (PDF)

Contributions (peer reviewed)

Krestel, Ralf
Neuronale Netze als Künstler - Oder KI als Werkzeug und Partner?
In: Bodrožić-Brnić, Kristina, Fitzek, Herbert (Eds.): Kreativität und Künstliche Intelligenz: Der Mensch als treibende Kraft der KI, Berlin: BSP Business and Law School, 2022, pp. 41-55 Link to fulltext (PDF)

Complete list of publications