We present Nodeinfo, an unsupervised algorithm for anomaly detection in system logs. We demonstrate Nodeinfo’s effectiveness on data from four of the world’s most powerful supercomputers: using logs representing over 746 million processor-hours, in which anomalous events called alerts were manually tagged for scoring, we aim to automatically identify the regions of the log containing those aler...

Large-scale network attacks will bring great damage to the network. Although the existing detection systems are able to detect a large number of known attacks, when facing large-scale network attacks, log data generated by these systems usually increases rapidly, which forms vast amount of alert information in a short period of time. This paper researches on picking up alert information efficie...

Near-real time altimetry products from ENVISAT RA2, Jason 1 and Topex/Poseidon tandem mission are validated for the North Sea and Baltic Sea region to assess the feasibility of using the data for operational purposes. The coverage of the satellite data shows that all Jason 1 and Topex/Poseidon observations in the Baltic Sea are currently discarded in the processing of the data. The spatial scal...

This paper presents the results of the project MIAU, a data mining approach for intrusion detection alert correlation. MIAU combines different data mining techniques in order to properly solve some existing problems in the management and analysis of alerts generated by actual intrusion detection systems. Some of these data mining methods and their application to MIAU are introduced in this pape...

In 1977 Hartwig and Luh asked whether an element a in a Dedekind-finite ring R satisfying aR = a2R also satisfies Ra = Ra2. In this paper, we answer this question in the negative. We also prove that if a is an element of a Dedekind-finite exchange ring R and aR = a2R, then Ra = Ra2. This gives an easier proof of Dischinger’s theorem that left strongly π-regular rings are right strongly π-regula...

Perhaps the last major effort to save the world’s great apes from extinction has been launched at a recent meeting held in the Democratic Republic of the Congo, one of 23 home states of the great apes. The meeting included an unusually broad range of interests for a conservation issue, with businesses, industry and communities joining up with scientists, environmental agencies and UN bodies to ...

Treatment techniques and tools to address alcohol use disorders (AUDs)* have multiplied over the last 30 years, moving beyond models based on Alcoholics Anonymous and its offshoot, the Minnesota Model. Care providers now can prescribe medications to aid people as they work to reduce their drinking. If a traditional mutualhelp group model of care does not appeal to a patient, he or she has other...

BACKGROUND Electronic Health Record (EHR)-based sepsis alert systems have failed to demonstrate improvements in clinically meaningful endpoints. However, the effect of implementation barriers on the success of new sepsis alert systems is rarely explored. OBJECTIVE To test the hypothesis time to severe sepsis alert acknowledgement by critical care clinicians in the ICU setting would be reduced...