Applied computing, computer science, and advanced by Qi Luo

By Qi Luo

Qi L. (ed.) utilized Computing, desktop technological know-how, and complex conversation (Springer, 2009)(ISBN 364202341X)(O)(258s)

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Cache Digest is implemented as two virtually independent modules or algorithms described below. A cache maintains its local digest as a variation of a Bloom filter. Bloom filter is a bit array with bits turned on the positions corresponding to hash values of the data. In short, whenever an object gets cached, a few bits based on object’s URL are turned on. Later, to know if certain URL is cache, it is needed to perform the same hashing sequence and check that all the corresponding bits are “on”.

3) e Then f = (1 − e − kn m Note that the asymptotic approximation p and f is used to represent respectively the probability a bit in the Bloom filter is 0 and the probability of a false prediction from now on for convenience. Although it is clear form above discussion, it is worth noting that there are three fundamental performance metrics for Bloom filters that can be traced off: computation time(corresponding to the number of hash functions k), size(corresponding to the array size m), and the probability of error(corresponding to the false prediction rate f).

In: International Conference on ICESS 2008, July 29-31, 2008, pp. 251–257 (2008) 5. CMOS MSPS Complete DDS AD9852, Analog Devices, Inc. (2002) 6. : Implementation of MSK Modulation with DDS Method. Telemetry & Telecontrol 26(3) (2002) 7. : Design and Realization of Communication Signal Source Based on DDS Technology. com Abstract. This paper is about the establishment and application of GIS database in urban heritage conservation. It first mines the needed data for database establishment from literature review.

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