Browsing Technical Reports by Author "Willett, Rebecca"

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Hypergraph-Based Anomaly Detection in Very Large Networks

Silva, Jorge; Willett, Rebecca (2008-02)

This paper addresses the problem of detecting anomalous interactions or traffic within a very large network using a limited number of unlabeled observations. In particular, consider n recorded interactions among p nodes, ...
Sequential anomaly detection in the presence of noise and limited feedback

Raginsky, Maxim; Willett, Rebecca (2009-08-13)

Recent work has established the efficacy of using online convex programming methods on exponential families in the context of sequential probability assignment. This paper describes methods which build upon that framework ...