Tianhuang Chen

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Analysis a large amounts of data acquired by a accelerometer embeded in a handheld device for figuring out the characteristics of the acceleration samples. In order to get a higher precision result of displacement after twice integration, samples are imposed a series of filtering and amendments on the basisi of the application. While de-noising the noise(More)
The B<sup>+</sup>_ tree index mechanism is applied extensively in the embedded database system. But it wastes the saving space. This paper analyzes the definition , querying algorithm , inserting algorithm , deleting algorithm of the B<sup>+</sup>_ tree. On this foundation, the inserting and deleting algorithm is improved, the improvement B<sup>+</sup> tree(More)
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