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Complex Event Recognition Group

National Center for Scientific Research Demokritos
We are Hiring
BSc & MSc Topics

Latest News

Our paper "Composite event recognition with arbitrary specifications" was accepted at Information and Computation 2025. PDF DOI
Our paper “Streams of Events with Delayed Effects” was accepted at JAIR. PDF DOI code
Our paper "A Scalable Approach to Probabilistic Neuro-Symbolic Robustness Verification" has received the outstanding paper award (best paper) at NeSy 2025. PDF
Our paper “A Tensor-Based Probabilistic Event Calculus” was accepted at KR 2025. PDF code
Our paper “Sequencing in the Run-Time Event Calculus” was accepted at ECAI 2025. PDF DOI

About the CER Group


We have been developing formal computational methods which take as input streams of low-level events, e.g. sensor-based events, such as a change in temperature, and combine them to infer complex high-level events of interest, such as the start of a fire incident or a fault in the cooling system of a vehicle. Our methods support real-time event recognition over high-velocity data streams, online structure learning for accurate event recognition over noisy relational streams, as well as complex event forecasting for proactive decision-making. Below are some applications in which we have applied our methods. An overview of our research activities may be found in this paper and this presentation.

Transport
Mobility
Analyze vehicle position streams for real-time fleet management.