Abstract: Examining time series sequences representing performance counters from executing programs can provide significant clues about potential malfunctions, busy periods in terms of traffic on networks, intensive processing cycles and so on. An unsupervised anomaly detector can detect anomalies for any time series. A combination of known techniques from statistics, signal processing and machine learning can be used to identify outliers on unsupervised data, and to capture anomalies like edge detection, spike detection, and pattern error anomalies. Boolean and probabilistic results concerning whether an anomaly was detected can be provided.

Abstract: Examining time series sequences representing performance counters from executing programs can provide significant clues about potential malfunctions, busy periods in terms of traffic on networks, intensive processing cycles and so on. An unsupervised anomaly detector can detect anomalies for any time series. A combination of known techniques from statistics, signal processing and machine learning can be used to identify outliers on unsupervised data, and to capture anomalies like edge detection, spike detection, and pattern error anomalies. Boolean and probabilistic results concerning whether an anomaly was detected can be provided.

Abstract: Information rights management (IRM) systems are used to protect the use of information within a data item. An IRM system is provided which will allow access to a data item following at least two interactions with one or more licensing entities. In some examples, the license entities may each issue a license containing part of the information required to access the data item. Each license part may correspond to part of a use policy. For example, a first licensing entity may issue a license to access a document based on one requirement and a second licensing entity may issue a license based on a different requirement. In other examples, a licensing entity may require a second licensing entity to perform a validation before it issues a use license.