Skip to content (access key 's')
Logo of Technion
Logo of CS Department
Logo of CS4People
Events

The Taub Faculty of Computer Science Events and Talks

On Anomaly Detection in Tabular Data
event speaker icon
Igor Margulis (M.Sc. Thesis Seminar)
event date icon
Wednesday, 07.04.2021, 11:30
event location icon
Zoom Lecture: 91383403107
For password to lecture, please contact: margulis@campus.technion.ac.il
event speaker icon
Advisor: Prof. R. El-Yaniv, Dr. Y. Filmus
Anomaly detection is a technique for finding unusual patterns in the given data. The study of anomaly detection has a long history and spans multiple disciplines including engineering, machine learning, statistics and real-life applications. We consider the problem of anomaly detection in tabular data, and present a detection scheme which is based on training a multiway classification model for discriminating between dozens of transformations applied to given "normal" records. The auxiliary expertise learned by the model generates feature representations that allow, at test time, identification of anomalous records based on the placement of representations of transformed test records with respect to the learned representations. We apply the scheme while incorporating the recently proposed classification models designed for tabular data and present the results obtained for the real-life data.