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Mastering real-time anomaly detection with open source tools

Talkat NDC Copenhagen 2025 · 2025-09-08..09-12· [databases, microservices]
slides:none on file

Builds a live pipeline using Apache Kafka for ingestion, Apache Flink for windowed processing, and ARIMA/ARMA plus LSTM for forecasting and anomaly scoring; uses Apache Iceberg for historical storage and periodic retraining. Implements fast statistical layers (three‑sigma / z‑score, 99.7% rule) as a first filter, ARMA with differencing for seasonal/time‑series forecasts, and pretrained LSTM for complex patterns, reporting anomalies back to Kafka and retraining models on rolling windows.

AI-written summary · about

  1. 0:00Introduction to anomalies
  2. 2:01Types of anomalies
  3. 6:36Evolution of detection
  4. 10:46Streaming infrastructure
  5. 15:59Threshold-based methods
  6. 20:13The ARMA model
  7. 30:13LSTM deep learning
  8. 36:45Choosing the right method
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