Recent posts

Understanding Drift in Machine Learning: Causes, Types, and Solutions

Machine learning models are trained with historical data, but once they are used in the real world, they may become outdated and lose their accuracy over time due to a phenomenon called drift. Drift is the change over time in the statistical properties of the data that was used to train a machine...

Sequential Detection of Switches in Models with Changing Structures

Sequential detection of structural changes in models is a critical aspect in various domains, enabling timely and informed decision-making. This involves identifying moments when the parameters or structure of a model change, often signaling significant events or shifts in the underlying data-gen...

Frequent Patterns Outlier Factor

Outlier detection is a critical task in machine learning, particularly within unsupervised learning, where data labels are absent. The goal is to identify items in a dataset that deviate significantly from the norm. This technique is essential across numerous domains, including fraud detection, s...

Detecting Outliers Using Principal Component Analysis (PCA)

Principal Component Analysis (PCA) is a robust technique used for dimensionality reduction while retaining critical information in datasets. Its sensitivity makes it particularly useful for detecting outliers in multivariate datasets. Detecting outliers can provide early warnings of abnormal cond...