Real-Time Stream Processing in Astronomy

Event processing is an umbrella term for technologies and that are conceptually centered around ingestion, manipulation, and dissemination of events. An event could be any discrete occurrence within a defined domain which is interesting enough to mark down. In most scenarios, events are organized in streams which can arrive from various sources and have a heterogeneous structure. Event processing concepts and technologies are proven in industries that demand high throughput of data and quick decision making and can be tailored for astronomical data stream analytics. They enable real-time pattern application, suitable for Big Data systems where automatized reaction: is crucial. Upcoming big astronomical surveys such as LSST (2023) and ZTF (already in operation), along with various simulated data streams, can be analyzed by applying event processing mechanism such as filtering, aggregation, pattern matching, etc.