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Time series analysis is an important data mining task in areas such as the stock market and petroleum industry. One interesting problem in knowledge discovery is the detection of previously unknown frequent patterns. With the existing types of patterns, some similar subsequences are overlooked or dissimilar ones are matched. In this paper, we define patterns with weak-wildcard gaps to represent subsequences...
A parallel algorithm, namely Parallel Block Odd-Even Reduction (PBOER) algorithm, is proposed to solve block tridiagonal linear systems on multi-computers. PBOER algorithm is the combination of PDD and OER method, and is thus highly accurate and scalable. The PBOER is highly parallel and provides approximate solutions that equals to the exact solutions within machine accuracy. The method proposed...
As the complexity of processors grows, the bottleneck of verification remains in generating suitable test programs that meet coverage metrics automatically. Coverage directed test generation is a technique to automate the feedback from coverage analysis to test generation. It is very important to solve the constraint satisfaction problem for a flexible coverage directed test generator with complex...
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