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Distributed Analytics

Our Distributed Analytics (DA) team focuses on enabling privacy-preserving machine learning on sensitive medical patient data. We develop technologies that allow institutions to collaboratively analyze patient data - such as electronic health records or imaging data - without the need to centralize it. This is particularly crucial in healthcare settings, where data privacy and sovereignty are paramount. Our team has extensive experience in developing PADME (Platform for Analytics and Distributed Machine Learning for Enterprises), a modular and open platform for federated and incremental learning across distributed clinical data sources. PADME is being continuously refined and applied in diverse research and clinical use cases, including national initiatives like the German Medical Informatics Initiative (MII) through the PrivateAIM project and collaborative European projects such as the Horizon Europe project BETTER. The DA team actively contributes to the design, development, and evaluation of novel data infrastructure components that enable secondary use of health data on a national and international scale. Our work supports the integration and reusability of multimodal clinical data - ranging from structured EHRs to imaging and genomics -across institutional boundaries. Through our work, we aim to bridge the gap between cutting-edge machine learning research and real-world clinical data environments - empowering institutions to extract value from data while respecting privacy, legal, and ethical constraints.

Publications

Real-Time Visualization and Analysis Architecture for Data Integration Processes at Cologne University Hospital's Medical Data Integration Center

Md Mostafa Kamal, Ekaterina Kutafina, Oya Beyan

This case study discusses the effectiveness of implementing a real-time automated monitoring architecture using the ELK Stack (Elasticsearch, Logstash and Kibana) to ensure data ingestion quality within the Medical Data Integration Center (MeDIC) at the University Hospital Cologne. By streamlining the ETL (Extract, Transform, and Load) log analysis process, this system minimizes the need for manual effort and brings increased efficiency and precision in analyzing data quality issues in real-time, detecting errors and potential problems, including the ability to uncover new errors. Over a six-month period, the implemented dashboard was able to process the ingestion logs of millions of files to provide valuable insights for the stakeholders in the decision-making process.