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Center for Law and Behavior C-LAB

S. (Sanne) Vrijenhoek

Faculty of Law
Information Law
Visiting address
  • Nieuwe Achtergracht 166
Postal address
  • Postbus 15514
    1001 NA Amsterdam
Contact details
  • Publications

    2025

    • Starke, A. D., Vrijenhoek, S., Michiels, L., Kruse, J., & Tintarev, N. (2025). Report on NORMalize: The Second Workshop on the Normative Design and Evaluation of Recommender Systems. In Proceedings of the Second Workshop on the Normative Design and Evaluation of Recommender Systems (NORMalize 2024) co-located with the 18th ACM Conference on Recommender Systems (RecSys 2024) (pp. 1-7). (CEUR Workshop Proceedings; Vol. 3898). CEUR-WS.
    • Starke, A., Vrijenhoek, S., Michiels, L., Kruse, J., & Tintarev, N. (Eds.) (2025). Proceedings of the Second Workshop on the Normative Design and Evaluation of Recommender Systems (NORMalize 2024): co-located with the 18th ACM Conference on Recommender Systems (RecSys 2024) : Bari, Italy, October 18, 2024. (CEUR Workshop Proceedings; Vol. 3898). CEUR-WS. https://ceur-ws.org/Vol-3898/ [details]

    2024

    • Heitz, L., Vrijenhoek, S., & Inel, O. (2024). Recommendations for the Recommenders: Reflections on Prioritizing Diversity in the RecSys Challenge. In Proceedings of Workshop on the RecSys Challenge, RecSysChallenge 2024 (pp. 22-26). (ACM International Conference Proceeding Series). Association for Computing Machinery. https://doi.org/10.1145/3687151.3687155
    • Kruse, J., Michiels, L., Starke, A., Tintarev, N., & Vrijenhoek, S. (2024). NORMalize: A tutorial on the normative design and evaluation of information access systems. In P. Clough, M. Harvey, & F. Hopfgartner (Eds.), CHIIR'24: Proceedings of the 2024 Conference on Human Information Interaction and Retrieval : March 10-14, 2024, Sheffield, United Kingdom (pp. 422-424). Association for Computing Machinery. https://doi.org/10.1145/3627508.3638319 [details]
    • Starke, A. D., Vrijenhoek, S., Michiels, L., Kruse, J., & Tintarev, N. (2024). NORMalize 2024: The Second workshop on normative design and evaluation of recommender systems. In RecSys '24: Proceedings of the Eighteenth ACM Conference on Recommender Systems : Bari, Italy, 14-18 October 2024 (pp. 1242-1244). Association for Computing Machinery. https://doi.org/10.1145/3640457.3687103 [details]
    • Vrijenhoek, S., Daniil, S., Sandel, J., & Hollink, L. (2024). Diversity of What? On the Different Conceptualizations of Diversity in Recommender Systems. In 2024 ACM Conference on Fairness, Accountability, and Transparency, FAccT 2024 (pp. 573-584). Association for Computing Machinery, Inc. https://doi.org/10.1145/3630106.3658926

    2023

    • Polimeno, A., Reuver, M., Vrijenhoek, S., & Fokkens, A. (2023). Improving and Evaluating the Detection of Fragmentation in News Recommendations with the Clustering of News Story Chains. In S. Vrijenhoek, L. Michiels, J. Kruse, A. Starke, J. Viader Guerrero, & N. Tintarev (Eds.), Proceedings of the First Workshop on the Normative Design and Evaluation of Recommender Systems (NORMalize 2023): co-located with the 17th ACM Conference on Recommender Systems (RecSys 2023) : Singapore, Singapore, September 19, 2023 Article 3 (CEUR Workshop Proceedings; Vol. 3639). CEUR-WS. https://ceur-ws.org/Vol-3639/paper3.pdf [details]
    • Vrijenhoek, S. (2023). Do You MIND? Reflections on the MIND Dataset for Research on Diversity in News Recommendations. In L. Boratto, S. Faralli, M. Marras, & G. Stilo (Eds.), Advances in Bias and Fairness in Information Retrieval: 4th International Workshop, BIAS 2023, Dublin, Ireland, April 2, 2023 : revised selected papers (pp. 147-154). (Communications in Computer and Information Science; Vol. 1840). Springer. https://doi.org/10.1007/978-3-031-37249-0_12 [details]
    • Vrijenhoek, S., Michiels, L., Kruse, J., Starke, A. D., Viader Guerrero, J., & Tintarev, N. (2023). NORMalize: The First Workshop on Normative Design and Evaluation of Recommender Systems. In Proceedings of the seventeenth ACM Conference on Recommender Systems: Singapore, 18th-22nd September 2023 (pp. 1252-1254). Association for Computing Machinery. https://doi.org/10.1145/3604915.3608757 [details]
    • Vrijenhoek, S., Michiels, L., Kruse, J., Starke, A., Viader Guerrero, J., & Tintarev, N. (2023). Report on NORMalize: The First Workshop on the Normative Design and Evaluation of Recommender Systems. In S. Vrijenhoek, L. Michiels, J. Kruse, A. Starke, J. Viader Guerrero, & N. Tintarev (Eds.), Proceedings of the First Workshop on the Normative Design and Evaluation of Recommender Systems (NORMalize 2023): co-located with the 17th ACM Conference on Recommender Systems (RecSys 2023) : Singapore, Singapore, September 19, 2023 (CEUR workshop proceedings; Vol. 3639). CEUR-WS. https://ceur-ws.org/Vol-3639/preface.pdf [details]

    2022

    • Helberger, N., van Drunen, M., Moeller, J., Vrijenhoek, S., & Eskens, S. (2022). Towards a Normative Perspective on Journalistic AI: Embracing the Messy Reality of Normative Ideals. Digital Journalism, 10(10), 1605-1626. https://doi.org/10.1080/21670811.2022.2152195 [details]
    • Piscopo, A., Inel, O., Vrijenhoek, S., Millecamp, M., & Balog, K. (2022). QUARE: 1st Workshop on Measuring the Quality of Explanations in Recommender Systems. In SIGIR '22: proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval : July 11-15, 2022, Madrid, Spain (pp. 3478-3481). The Association for Computing Machinery. https://doi.org/10.1145/3477495.3531699 [details]
    • Vrijenhoek, S., Bénédict, G., Gutierrez Granada, M., Odijk, D., & de Rijke, M. (2022). RADio - Rank-Aware Divergence Metrics to Measure Normative Diversity in News Recommendations. In RecSys' 22: Proceedings of the Sixteenth ACM Conference on Recommender Systems : Seattle, WA, USA, September 18-23, 2022 (pp. 208-219). Association for Computing Machinery. https://doi.org/10.1145/3523227.3546780 [details]

    2021

    • Bernstein, A., de Vreese, C., Helberger, N., Schulz, W., Zweig, K., Baden, C., Beam, M. A., Hauer, M. P., Heitz, L., Jürgens, P., Katzenbach, C., Kille, B., Klimkiewicz, B., Loosen, W., Moeller, J., Radanovic, G., Shani, G., Tintarev, N., Tolmeijer, S., ... Zueger, T. (2021). Diversity in news recommendation: Manifesto from Dagstuhl Perspectives Workshop 19482. Dagstuhl Manifestos, 9(1), 43-61. https://doi.org/10.4230/DagMan.9.1.43 [details]
    • Makri, S., McKay, D., Buchanan, G., Chang, S., Lewandowski, D., MacFarlane, A., Cole, L., Vrijenhoek, S., & Ferraro, A. (2021). Search a Great Leveler? Ensuring More Equitable Information Acquisition. Proceedings of the Association for Information Science and Technology, 58, 613-618. https://doi.org/10.1002/pra2.511
    • Reuver, M., Mattis, N., Sax, M., Verberne, S., Tintarev, N., Helberger, N., Moeller, J., Vrijenhoek, S., Fokkens, A., & van Atteveldt, W. (2021). Are we human, or are we users? The role of natural language processing in human-centric news recommenders that nudge users to diverse content. In A. Field, S. Prabhumoye, M. Sap, Z. Jin, J. Zhao, & C. Brockett (Eds.), The 1st Workshop on NLP for Positive Impact: NLP4PosImpact 2021 : proceedings of the workshop : August 5, 2021, Bangkok, Thailand (online) (pp. 47-59). The Association for Computational Linguistics. https://doi.org/10.18653/v1/2021.nlp4posimpact-1.6 [details]
    • Vrijenhoek, S., Kaya, M., Metoui, N., Möller, J., Odijk, D., & Helberger, N. (2021). Recommenders with a Mission: Assessing Diversity in News Recommendations. In CHIIR '21: proceedings of the 2021 Conference on Human Information Interaction and Retrieval : March 14-19, 2021, Canberra, Australia (pp. 173-183). The Association for Computing Machinery. https://doi.org/10.1145/3406522.3446019 [details]

    2016

    • van Wierst, P., Vrijenhoek, S., Schlobach, S., & Betti, A. (2016). Phil@Scale: Computational Methods within Philosophy. In L. Wieneke, C. Jones, M. Düring, F. Armaselu, & R. Leboutte (Eds.), Proceedings of the Third Conference on Digital Humanities in Luxembourg with a Special Focus on Reading Historical Sources in the Digital Age: Luxembourg, Luxembourg, December 5-6, 2013 (CEUR Workshop Proceedings; Vol. 1681). CEUR-WS. http://ceur-ws.org/Vol-1681/Wierst_et_al_Philo_at_scale.pdf [details]

    2023

    • Vrijenhoek, S., Michiels, L., Kruse, J., Starke, A. D., Viader Guerrero, J., & Tintarev, N. (Eds.) (2023). NORMalize 2023 Normative Design and Evaluation of Recommender Systems 2023: Proceedings of the First Workshop on the Normative Design and Evaluation of Recommender Systems (NORMalize 2023) co-located with the 17th ACM Conference on Recommender Systems (RecSys 2023). https://ceur-ws.org/Vol-3639/

    2019

    • Bernstein, A., De Vreese, C., Helberger, N., Schulz, W., Zweig, K. A., Tolmeijer, S., Hauer, M., Tintarev, N., & Vrijenhoek, S. (2019). Diversity, Fairness, and Data-Driven Personalization in (News) Recommender System: Report from Dagstuhl Perspectives Workshop 19482. Dagstuhl Reports, 9(11), 117-124. https://doi.org/10.4230/DagRep.9.11.117 [details]

    Prize / grant

    • Helberger, N., Vrijenhoek, S. & Möller, J. (2020). Commissioned to write a research report - Diversity by Design - Canadian Heritage/Unesco.
    • Helberger, N. & Vrijenhoek, S. (2019). Research funding Diverse Recommendations - SIDN Fonds.
    • Helberger, N. & Vrijenhoek, S. (2019). Research funding project Diversity by Design.

    Others

    • Helberger, N. (organiser) & Vrijenhoek, S. (organiser) (21-11-2022 - 25-11-2022). Diverse News Recommenders: from concept to implementation (organising a conference, workshop, ...).
    • Helberger, N. (organiser) & Vrijenhoek, S. (organiser) (28-10-2021). IViR & BBC Workshop. Public service recommendations. Sanne Vrijenhoek and Natali Helberger have carried out research around the ethical and public policy challenges (…) (organising a conference, workshop, ...).

    2022

    • Stray, J., Halevy, A., Assar, P., Hadfield-Menell, D., Boutilier, C., Ashar, A., Beattie, L., Ekstrand, M., Leibowicz, C., Moon Sehat, C., Johansen, S., Kerlin, L., Vickrey, D., Singh, S., Vrijenhoek, S., Zhang, A., McKane, A., Helberger, N., Proutskova, P., ... Vasan, N. (2022). Building Human Values into Recommender Systems: An Interdisciplinary Synthesis. https://arxiv.org/ftp/arxiv/papers/2207/2207.10192.pdf
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