Rich Tsui

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This short report very briefly surveys a spectrum of technologies from statistics, computer science and data mining that can help with Biosurveillance. We indicate which we have chosen, so far, to use in our development of analysis methods and our informal reasoning. 1 Time-weighted averaging This is directly applicable to a scalar signal (such as " number(More)
BACKGROUND Plasminogen activator inhibitor type 1 (PAI-1) is an important regulator of fibrinolysis. A common deletion polymorphism that results in a sequence of 4G instead of 5G in the promoter region of the gene is associated with a small increase in the risk of venous thromboembolism. Its potential association with adverse pregnancy events remains(More)
High dimensional feature space could potentially hinder the efficiency and performance for machine learning, and high correlations between features may further increase the redundancy and diminish performance of learning algorithms. Domain ontology provides relationships and similarities between concepts in the specific area, and thus can be used to reduce(More)