Windowing refers to a process that involves taking a subset or “window“ of data points from a larger dataset for analysis. It can be a crucial part of data analysis and threat detection since analyzing the entire set of data is often not possible.
What are windowing benefits?
- Anomaly detection. It can significantly increase the chance of detecting unusual behavior or anomalies by comparing the new data windows with an established or baseline data set. If the data in a new window deviates significantly from the normal profile, it could indicate an intrusion or other malicious activity.
- Real-time analysis. It allows for real-time or near-real-time analysis. Since you’re analyzing the data in smaller chunks (or windows), you can start processing even before the entire data set is available. This makes it possible to identify and respond to threats quickly.
- Manageable data volumes. It makes work easier when dealing with massive data streams by breaking the data into smaller windows. Then, you can use one part to represent the entire set or process and analyze each window separately.
What are windowing drawbacks?
- False positives. You have to be careful when picking a window because suboptimal choice can result in false positives.
- Resource intensive. Real-time windowing can be resource-intensive, requiring significant computational power and storage.