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Antivirus is an important issue to the security of virtual machine (VM). According to where the antivirus system resides, the existing approaches can be categorized into three classes: internal approach, external approach and hybrid approach. However, for the internal approach, it is susceptible to attacks and may cause antivirus storm and rollback vulnerability problems. On the other hand, for the...
This paper introduces an attribute reduction algorithm according to heuristic information based on the distance between partitions. It is quite different from other algorithms which seek for minimum reduction, and the algorithm tends to find out a space close to decision-making division of attribute reduction. The attribute reduction algorithm is beneficial to the generation of strong rules.
Range reduction is widely used in the element function library and high performance computing applications. A new rang reduction algorithm and an improved one based on the Payne and Hanek Algorithm are proposed. Using the 64-bit integer arithmetic unit, all the intermediate computation is optimized for its Parallelism, table size and throughput, and the improved one base on it debases the complexity,...
The speed of interactive rendering in digital city can be improved through effective data management, graphic technology, workload balance based on multi-processors and others. But if the object is not in memory when it is rendered, system performance drops abruptly. The history-based motion prediction method aims at high file hits and predicts the future motion according to the historical ones. The...
Multiple sequence alignment is a fundamental and challenging problem in computational molecular biology. ClustalW, the most widely used multiple sequence alignment software, performs very slowly on hundreds of sequence. Here, we analyze the algorithm complexity of ClustalW as well as the time profile in practice, and then propose a strategy which uses the reconfigurable hardware FPGA to accelerate...
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