< Back Challenges and opportunities for recommender systems in media markets Ranaivoson, H., Smets, A. & Ballon, P. (2024). Challenges and opportunities for recommender systems in media markets. In U. Rohn, M. Rimscha & T. Raats (Ed.), De Gruyter Handbook of Media Economics (pp. 215-228). Berlin, Boston: De Gruyter. https://doi.org/10.1515/9783110793444-015 Recommender systems have become omnipresent in media markets, fromproduction to distribution and consumption. What is often overlooked, however, isthat the multi-sided nature of contemporary media markets implies that recom-mender systems need to balance the needs and requirements of actors on differentsides of these markets, such as content providers and end-users. Starting from an overview of the rapidly growing literature on recommender systems in media mar-kets, and emphasizing their multi-sided nature, we first describe the main typologies of recommender systems and analyze how various stakeholders might adopt particular strategies to have these systems create novel market opportunities. Then, we discuss media market dilemmas that result from these stakeholders’ often competing objectives in terms of biases, notably filter bubbles, management dilemmas, and is-sues around privacy and transparency. We argue how revisiting these concerns from a multi-stakeholder perspective opens up new angles to understand recommender systems’ impact on contemporary media markets. Recommender Systems Previous Read the article Next

< Back From Experimentation to Strategy: The Ambidextrous Balancing Act of Developing News Recommender Systems Vandenbroucke, H., & Smets, A. (2025). From experimentation to strategy: the ambidextrous balancing act of developing news recommender systems. Journal of Media Business Studies , 1–28. https://doi.org/10.1080/16522354.2025.2590880 Despite advances in news recommender systems (NRS) research, their application in news organisations remains limited, hampered by practical obstacles and organisational challenges. This study applies the multi-stakeholder framework alongside ambidexterity theory to analyse the complex decision-making dynamics in applying NRS within two large commercial news organisations. Based on 11 in-depth interviews with different stakeholders, two “balancing acts” emerged. The first is stakeholder alignment through two strategies: knowledge management with dummy-proof presentations and “showcasing success” to help increase stakeholder buy-in for NRS. The second balancing act is managing trade-offs between exploration and exploitation in a roadmap developed by the multidisciplinary team of product owners (POs), ensuring a balanced allocation of resources for NRS innovation and optimisation. This research shows how organisational ambidexterity supports successful technology integration and provides insights for implementing emerging technologies in complex multi-stakeholder news media environments. Recommender Systems, Stakeholders, Newsmedia Previous Read the article Next

< Back 24 Sept 2024 Our takeaways from the workshop part of the NWO-funded project "Rethinking news algorithms" On 23rd of September, Aina, Hanne, and Ulysse traveled to the Vrije Universiteit Amsterdam for the workshop "Best practices for responsible news recommender design," part of the NWO-funded project "Rethinking news algorithms". This one-day event aimed to foster collaboration between academia and industry, focusing on the ethical design of news recommender systems. Aina and Hanne presented initial insights from their systematic literature review that aims to uncover the organizational challenges, opportunities and social implications of news recommendation systems studied in Western media systems. One significant observation from the day highlighted the challenges in aligning all aspects of responsible news recommenders with diverse stakeholder goals. A key takeaway from our engaging conversations with colleagues and industry professionals is that diversity is frequently considered essential for the development of responsible recommenders, given the close relationship between the democratic function of news and media pluralism. The workshop enabled a cooperative sharing of ideas, fostering the co-creation of optimal strategies for responsible news algorithms. Attendees also pinpointed prospective research paths, underscoring the necessity of ongoing interdisciplinary collaboration to explore the societal implications of these systems. Previous Next Workshop: Best Practices for Responsible News Recommender Design

< Back Not One News Recommender To Fit Them All: How Different Recommender Strategies Serve Various User Segments Vandenbroucke, H., Maes, U., Michiels, L., & Smets, A. (2025). Not One News Recommender To Fit Them All: How Different Recommender Strategies Serve Various User Segments. In 19th ACM Conference on Recommender Systems Proceedings . ACM. Many news recommender systems (NRS) adopt a one-recommender-for-all approach, overlooking that users engage with news in fundamentally different ways. In this work, we identify user clusters based on various engagement metrics that go beyond clicks by employing cluster analysis on two real-world datasets: EB-NeRD and Adressa. Next to that, we evaluate the performance of common rec-ommender strategies: popularity, collaborative filtering (EASE and ItemKNN), and a content-based model across these user clusters, which exhibit varying reading behaviors and information needs. Our findings show that different recommender strategies are effective to varying degrees depending on the user cluster. This study contributes to NRS research by providing a grounded clustering of users derived from real-world datasets and emphasizes the importance of user-centered evaluations for understanding how NRS strategies serve audiences with varying levels of news engagement. Recommender Systems Previous Read the article Next

< Back Let Me Introduce You: Stimulating Taste-Broadening Serendipity through Song Introductions Brett Binst, Ulysse Maes, Martijn Willemsen, and Annelien Smets. 2026. Let Me Introduce You: Stimulating Taste-Broadening Serendipity through Song Introductions. In 34th ACM Conference on User Modeling, Adaptation and Personalization (UMAP ’26), June 08–11, 2026, Gothenburg, Sweden. ACM, New York, NY, USA, 10 pages. https://doi.org/10.1145/3774935.3806164 Research on how people experience music emphasizes the importance of exploration and diversity in listening. However, music recommender systems struggle with facilitating exploration. Even when music recommender systems are able to recommend something valuable to users that is outside their typical preferences, it still remains difficult to spark their interest. This paper presents a user study examining the efficacy of immersive and informative introductions in stimulating interest in songs that are beyond one’s usual preferences, an experience called Taste-Broadening Serendipity. We uncover two important mechanisms behind the effect of introductions: transportation and cognitive elaboration. Our findings indicate that transportation (i.e., being absorbed into a narrative world) is the strongest predictor of Taste-Broadening Serendipity, while cognitive elaboration (i.e., learning something new about the artist or social context in which the music emerged) has a weaker effect but is easier to stimulate. We propose that song introductions can play an important role in facilitating exploration and increasing diversity of listening on music streaming platforms. Previous Read the article Next

< Back Promoting Fairness of the Music Ecosystem in a Platform-Dominated and Post-Pandemic Europe Fair MusE The overarching goal of Fair MusE is to promote fairness for music creators and stakeholders from an interdisciplinary perspective, thus leading to a more transparent, competitive and sustainable music ecosystem in Europe. Fair MusE focuses specifically on the domination of online platforms and their algorithms and will investigate: the legal responses that have been proposed in the EU the changes these platforms have brought to the music industry and music professionals the impact of such algorithms on music consumption. Fair MusE will provide an interdisciplinary analysis of fairness in the music industry involving music creators and stakeholders in the research; promote and enhance transparency concerning music industry practices and standardisation in data collection in the European music ecosystem; and assess the risks created by the reinforced dominance of the largest online platforms prompted by COVID 19 as well as making policymakers, stakeholders and the general public aware of such risks. To do so, Fair MusE will provide an innovative, strong and future-proof set of co-created responses and solutions: the ‘Music Copyright Infrastructure’, a data-sharing model agreement enhancing transparency; a ‘Music Data Dashboard’ of statistical indicators on the economic and societal value of the European music sector; the ‘Fairness Score’, a tool to assess music services and social media in terms of fairness’ multiple facets; and a ‘White Paper’ embodying policy recommendations to enhance competitiveness, sustainability, transparency and fairness of the EU music ecosystem. Our consortium is a carefully designed interdisciplinary group of academic and industry partners with strong expertise in the fields of law, economics, political science and computer science, supported by an Advisory Board composed of a highly qualified and broadly representative group of industry experts. Researchers on this project Heritiana Ranaivoson Research Professor Consortium partners Universidade Católice Portuguesa Católica Research Center Verifi Media Limited Universidade Católice Portuguesa 1/12 Tags Artificial Intelligence, Copyright, Media Policy, Music Industry, Platforms Previous Next

< Back Public Service Media in the Age of Platforms PSM-AP Public service media (PSM) organizations have to compete with global streaming services (e.g. Netflix and YouTube), for audiences, revenue and talent. They have had to develop new on-demand services and online content that can only be delivered through the online systems owned by global platforms such as Google, Apple and Amazon. The PSM-AP project asks how PSM organisations, and the regulators and policymakers that legislate for and enforce their remits, are adapting to this new platform age, and how their responses might be altering the social and cultural values of PSM and its ability to operate in the public interest. It focuses on television, which remains at the heart of PSM. It asks how the new environment within which PSM organisations are operating might affect the values that underpin the production and distribution of TV programmes by PSM organizations, and the policy debates and regulatory structures that shape the remits and structures within which PSM organizations operate. The project will compare data gathered within and across six countries and 12 PSM organizations: Belgium (RTBF, VRT), Canada (CBC), Denmark (DR, TV 2), Italy (RAI), Poland (TVP), UK (BBC, Channel 4, S4C, ITV, Channel 5). Researchers on this project Catalina Iordache Guest Professor Tim Raats Associate Professor Consortium partners Aarhus University University of Leeds University of Warsaw Aarhus University 1/5 Tags Platforms, Media Policy Previous Next

< Back Noëmie Forest Researcher noemie.janine.forest@vub.be Eager to investigate the role of platforms and streamers in constantly evolving media ecosystems, Noëmie joined SMIT as a researcher in the Media Economics and Policy unit in 2023. She will research personalization and recommender systems, and their value in media markets. Noëmie studied Communication Sciences at the Vrije Universiteit Brussel, between 2018 and 2022, with a specialisation in media, strategic communication, and marketing. Her specialisation gave her the chance to immerse herself in this subject through her thesis, “Does one size fit all? – How do five Belgian food brands position themselves on the international market?”. Noëmie dived into the world of different brands, and earned herself a great distinction in 2022. Before starting at SMIT, she worked at Think BBDO as strategic executive, to assist organizations in their branding and communication. Visit my research profile

< Back Valdy Wiratama Researcher valdy.wiratama@vub.be Growing up during the Web 2.0 era, the Internet left a favorable impression on my engagement with content. From dissecting events through discourses on Twitter to discovering new music on MySpace, the Internet enabled me to access a wider range of information and adjust my preferences at a reduced rate. While I can easily comprehend these effects as a media consumer, I can only imagine the ramifications on actors, musicians, and even print journalists. Lower barriers to entry amplify their competition, while the resulting oversupply threatens the exposure of smaller creators. With a current comprehension that requires more observations, my professional work is dedicated to understanding the supply side of the media industry and its relationship with the Internet. Particularly, I am invested in recorded music and its ever-evolving response towards platformization, online intermediaries, and the long tail hypothesis. As for the foundation that guides my outset in rationalizing phenomena, the baseline principle that I commonly work with is economics. I earned a Bachelor’s degree in economics from the University of Indonesia in 2018 and a Master of Arts degree (M.A.) in cultural economics and entrepreneurship from Erasmus University Rotterdam in 2022. To obtain the latter, I completed a thesis with the title ‘Backstage at the Pandemic: How the COVID-19 Pandemic Affected Music Production, Distribution, and Promotion among Unsigned Musicians in the United States.’ After defending the thesis, I joined an independent record label in The Netherlands before transitioning to a role that centers around fairness in the music industry (the FairMusE project) at imec-SMIT, VUB in 2023. Visit my research profile

< Back Ashley Amerson Product Manager This is placeholder text. To change this content, double-click on the element and click Change Content. Want to view and manage all your collections? Click on the Content Manager button in the Add panel on the left. Here, you can make changes to your content, add new fields, create dynamic pages and more. Your collection is already set up for you with fields and content. Add your own content or import it from a CSV file. Add fields for any type of content you want to display, such as rich text, images, and videos. Be sure to click Sync after making changes in a collection, so visitors can see your newest content on your live site. info@mysite.com 123-456-7890

< Back Kelly Parker HR Representative This is placeholder text. To change this content, double-click on the element and click Change Content. Want to view and manage all your collections? Click on the Content Manager button in the Add panel on the left. Here, you can make changes to your content, add new fields, create dynamic pages and more. Your collection is already set up for you with fields and content. Add your own content or import it from a CSV file. Add fields for any type of content you want to display, such as rich text, images, and videos. Be sure to click Sync after making changes in a collection, so visitors can see your newest content on your live site. info@mysite.com 123-456-7890

< Back Marcus Harris Account Director This is placeholder text. To change this content, double-click on the element and click Change Content. Want to view and manage all your collections? Click on the Content Manager button in the Add panel on the left. Here, you can make changes to your content, add new fields, create dynamic pages and more. Your collection is already set up for you with fields and content. Add your own content or import it from a CSV file. Add fields for any type of content you want to display, such as rich text, images, and videos. Be sure to click Sync after making changes in a collection, so visitors can see your newest content on your live site. info@mysite.com 123-456-7890