Konak, OrhanArnrich, BertBieber, GeraldKuijper, ArjanFudickar, Sebastian2025-02-182025-02-182025978-3-031-80855-5978-3-031-80856-2https://publica.fraunhofer.de/handle/publica/48405610.1007/978-3-031-80856-2This book constitutes the proceedings of the 9th International Workshop on Sensor-Based Activity Recognition and Artificial Intelligence, iWOAR 2024, held in Potsdam, Germany, during September 26–27, 2024. The 15 full papers and 4 short papers presented here were carefully reviewed and selected from 28 submissions. These papers have been categorized into the following topical sections: Advances in Human Activity Recognition; Applications in Vision-Based Recognition; Wearable Devices and Health Monitoring; Novel AI and Machine Learning Approaches; Short Papers: Emerging Topics in Sensor-Based Systems.enBranche: HealthcareBranche: Information TechnologyResearch Line: Human computer interaction (HCI)Research Line: Machine learning (ML)LTA: Interactive decision-making support and assistance systemsLTA: Machine intelligence, algorithms, and data structures (incl. semantics)LTA: Generation, capture, processing, and output of images and 3D modelsWearable computingMachine learningData processingconference proceeding