Detecting Group Anomalies in Tera-Scale Multi-Aspect Data via Dense-Subtensor Mining

How can we detect fraudulent lockstep behavior in large-scale multi-aspect data (i.e., tensors)? Can we detect it when data are too large to fit in memory or even on a disk? Past studies have shown that dense subtensors in real-world tensors (e.g., social media, Wikipedia, TCP dumps, etc.) signal an...

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Bibliographic Details
Main Authors: Kijung Shin, Bryan Hooi, Jisu Kim, Christos Faloutsos
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-04-01
Series:Frontiers in Big Data
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fdata.2020.594302/full