EPA'S OFFICE OF EXPLORATORY RESEARCH

Office of Scale Research

Exploratory Multilevel Hot Spot Analysis: Australian Taxation Office Case Study

Population based real-life datasets often contain smaller clusters of unusual sub-populations. While these clusters, called ‘hot spots’, are small and sparse, they are usually of special interest to an analyst. In this paper we introduce a visual drill-down SelfOrganizing Map (SOM)-based approach to explore such hot spots characteristics in real-life datasets. Iterative clustering algorithms (s...

Air Force Office of Scientific Research

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Air Force Office of Scientific Research AFOSR

This report documents the investigations and development of low noise interband-cascade infrared photodetectors (ICIPs) at the University of Oklahoma (in collaborations with others) for a period of time from May 2009 to Nov. 2011. ICIPs, composed of discrete superlattice (SL) absorbers, are demonstrated at temperatures up to 350K in the mid-infrared spectral region. The peak responsivity exceed...

Prepared for : Office of Naval Research Advanced Research Projects Agency