Cloud systems are complex, large, and dynamic systems whose behavior must be
continuously analyzed to timely detect misbehaviors and failures. Although there are …

Virtualization offers cost efficient usage of digital resources. Thus, dedicated hardware
solutions are transferred into virtualized services running in the cloud. Such softwarization of …

The dependability of cloud computing services is a major concern of cloud providers. In
particular, anomaly detection techniques are crucial to detect anomalous service behaviors …

The online detection of anomalies is a vital element of operations in data centers and in
utility clouds like Amazon EC2. Given ever-increasing data center sizes coupled with the …

Abstract Information security is the key success factor to provide safe cloud computing
services. Despite its usefulness and cost-effectiveness, public cloud computing service is …

The online detection of anomalies is a vital element of operations in datacenters and in utility
clouds like Amazon EC2. Given ever-increasing data center sizes coupled with the …

Cloud services are prominent within the private, public and commercial domains. Many of
these services are expected to be always on and have a critical nature; therefore, security …

The detection of anomalies in cloud metrics is an important way to identify suspicious data
instances that indicate a system problem such as hardware failures, performance …

A variety of faults may cause performance degradation or even downtime of virtual machines
(VMs) under Cloud environment, thus lowering the dependability of Cloud platform …

Monitoring is the key to guarantee the reliability of cloud computing systems. By analyzing
monitoring data, administrators can understand systems' statuses to detect, diagnose and …