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Cardiovascular complications after major surgery are associated with increases in morbidity and mortality. There is confusion over definitions of cardiac injury or complications, and variability in the assessment and management of patients. This international prospective cohort study aimed to define the incidence and timing of these complications and to investigate their impact on 30‐day all‐cause...
We present behavioral pattern analysis of fast flux service networks (FFSNs) using our database of FFSNs collected over a period of 12 months with our real-time fast flux network detection algorithm [1]. FFSNs exploit a network of compromised machines (zombies) for illegal activities such as spam campaigns, phishing scams and malware delivery using DNS record manipulation techniques. Our results,...
Here we present the first empirical study of detecting and classifying fast flux service networks (FFSNs) in real time. FFSNs exploit a network of compromised machines (zombies) for illegal activities such as spam, phishing and malware delivery using DNS record manipulation techniques. Previous studies have focused on actively monitoring these activities over a large window (days, months) to detect...
This paper is concerned with the parameter adaptive least squares estimation of random processes. The main result is a general representation theorem for the conditional expectation of a random variable on a product probability space. Using this theorem along with the general likelihood ratio expression, the least squares estimate of the process is found in terms of the parameter conditioned estimates...
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