88 citations · 175 across the 26 of their papers we have counts for
5 papers · 1 filter
Searching for Anomalies over Composite Hypotheses
Bar Hemo, Tomer Gafni, Kobi Cohen +1
The problem of detecting anomalies in multiple processes is considered. We consider a composite hypothesis case, in which the measurements drawn when observing a process follow a c…
Active Anomaly Detection in Heterogeneous Processes
Boshuang Huang, Kobi Cohen, Qing Zhao
An active inference problem of detecting anomalies among heterogeneous processes is considered. At each time, a subset of processes can be probed. The objective is to design a sequ…
Information-Directed Random Walk for Rare Event Detection in Hierarchical Processes
Chao Wang, Kobi Cohen, Qing Zhao
The problem of detecting a few anomalous processes among a large number of data streams is considered. At each time, aggregated observations can be taken from a chosen subset of th…
Online Learning and Optimization of Markov Jump Affine Models
Sevi Baltaoglu, Lang Tong, Qing Zhao
The problem of online learning and optimization of unknown Markov jump affine models is considered. An online learning policy, referred to as Markovian simultaneous perturbations s…
Active Hypothesis Testing for Quickest Anomaly Detection
Kobi Cohen, Qing Zhao
The problem of quickest detection of an anomalous process among M processes is considered. At each time, a subset of the processes can be observed, and the observations from each c…