Finding Errors in Massive Payment Log Data

Logs play an important role in debugging and maintaining large applications. When a system fails, developers investigate the log records to gain insight to identify the problem. Traditionally developers used tools like grep and tail to identify irregular behavior. This approach is time consuming for large companies that can generate over 600GB...

Dependency-based anomaly detection

Anomaly (or outlier) detection techniques can be used to find occurrences in data that are surprising or unusual, arousing the suspicion of being generated by an aberrant mechanism. A collective anomaly is a collection of data instances of which the individual data instances may not be anomalies by themselves, but their occurrence together is...