Tag Archives: markov chain

Time Series Sequence Anomaly Detection with Markov Chain on Spark

There are many techniques for time series anomaly detection. In this post, the focus is on sequence based anomaly detection of time series data with Markov Chain. The technique will be elucidated with a use case involving data from a … Continue reading

Posted in Anomaly Detection, Big Data, Data Science, Machine Learning, Outlier Detection, Scala, Spark | Tagged , , , , | 1 Comment

Real Time Fraud Detection with Sequence Mining

Real time fraud detection  is one of the use cases, where multiple components of the Big Data eco system come into play in a significant way, Hadoop batch processing  for building the predictive model and Storm for predicting fraud from … Continue reading

Posted in Big Data, Data Mining, Data Science, Fraud Detection, Hadoop and Map Reduce, Redis, Storm | Tagged , , , | 27 Comments