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We present NetGrok, a tool for visualizing computer network usage in real-time. NetGrok combines well-known information visualiza-tion techniques—overview, zoom & filter, details on demand—with network graph and treemap visualizations. NetGrok integrates these tools with a shared data store that can read PCAP-formatted network traces, capture traces from a(More)
The concept of information classification is used by all nations to control information distribution and access. In the United States this is referred to as Multiple Levels of Security (MLS), which includes designations for unclassified, confidential, secret, and top secret information. The U.S. Department of Defense has traditionally implemented MLS(More)
The response regulator RpaA was examined by targeted mutagenesis under high light conditions in Synechocystis sp. PCC 6803. A significant reduction in chlorophyll fluorescence from photosystem I at 77 K was observed in the RpaA mutant cells under high light conditions. Interestingly, the chlorophyll fluorescence emission from the photosystem I trimers at 77(More)
A common problem in computer science is how to efficiently store sets: when given a set, how do you store it so that you do not use much space and membership queries can be done quickly? One popular method is to use bit vectors. We use a model data structure that is a variant of bit vectors, the bit probe data structure, to demonstrate lower and upper(More)
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