Efficient modeling of higher-order dependencies in networks: from algorithm to application for anomaly detection
Abstract
Complex systems, represented as dynamic networks, comprise of components that influence each other via direct and/or indirect interactions. Recent research has shown the importance of using Higher-Order Networks (HONs) for modeling and analyzing such complex systems, as the typical Markovian assumption in developing the First Order Network (FON) can be limiting. This higher-order network representation not only creates a more accurate representation of the underlying complex system, but also leads to more accurate network analysis. In this paper, we first present a scalable and accurate model, , for higher-order network representation of data derived from a complex system with various orders of dependencies. Then, we show that this higher-order network representation modeled by is significantly more accurate in identifying anomalies than FON, demonstrating a need for the higher-order network representation and modeling of complex systems for deriving meaningful conclusions.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 09, 2020
- Source ID
- 10.1140/epjds/s13688-020-00233-y
Entities
People
- Bruno Ribeiro
- Jian Xu
- Lance Kaplan
- Mandana Saebi
- Nitesh Chawla
Organizations
- National Science Foundation
- United States Army Research Laboratory
- University of Notre Dame