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According to the traditional sequential pattern mining algorithm with high complexity and not suitable for massive data, this paper puts forward Ha-GSP, which is a sequential pattern mining algorithm based on cloud computing platform Hadoop. On the basis of GSP algorithm, this paper researchs on implementation of GSP algorithm on Hadoop platform, and uses MapReduce model to solve the problem of massive...
Roving patrol plays a very important role in strengthening safety within campuses or communities through their patrol around the target. In fact, there maybe exist some patrolmen who do not work efficiently. Therefore, it is useful to quantitatively evaluate their roving effectiveness. The widespread use of global positioning system (GPS) and GPS data logger have generated huge amount of trajectory...
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