TY - CHAP A1 - Krieter, Philipp A1 - Zerrer, Patrick A1 - Puschmann, Cornelius A1 - Geise, Stephanie ED - Boratto, Ludovico ED - Gena, Cristina ED - Marras, Mirko ED - Germanakos, Panagiotis ED - Popescus, Elvira T1 - Following Topics Across All Apps and Media Formats: Mobile Keyword Tracking as a Privacy-Friendly Data Source in Mobile Media Research T2 - UMAP Adjunct '24: Adjunct Proceedings of the 32nd ACM Conference on User Modeling, Adaptation and Personalization, Cagliari Italy, July 1 - 4, 2024 Y1 - 2024 SN - 979-8-4007-0466-6 U6 - https://doi.org/10.1145/3631700.3664879 SP - 126 EP - 131 PB - ACM CY - New York ER - TY - JOUR A1 - Zerrer, Patrick A1 - Pressmann, Paul A1 - Puschmann, Cornelius A1 - Krieter, Philipp T1 - Beyond the Black Box: A Multimodal Approach to Understanding In-App Communication JF - Medien & Kommunikationswissenschaft N2 - Mobile devices are increasingly central as sources of up-to-date information, making the precise recording of information behavior on these devices more relevant for research. Established methods of automated data collection are reaching their limits when capturing in-app communication, such as political content within social media applications. Based on two case studies, we present two approaches that enable the identification of exposure to relevant content and, to some extent, the collection of in-app content. The first case study focuses on identifying relevant exposure across different apps on a mobile device using app tracking and screen recordings. The second case study focuses on linking exposure to seen content and deriving respective content features to obtain an enriched dataset. We discuss the advantages and limitations of both approaches and present conceptual frameworks for processing and analyzing such data. KW - mobile tracking KW - screen recording KW - mobile sensing KW - android logs KW - in-app tracking Y1 - 2026 U6 - https://doi.org/10.5771/1615-634X-2026-1-31 SN - 1615-634X VL - 74 IS - 1 SP - 31 EP - 51 PB - Nomos Verlag ER -