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To solve the contradiction between massive network information and limited learning needs, personalized recommendation service becomes the hotspot in research area. User characteristics analysis is the key point in personalized recommendation service. Based on the massive web access log in the web server, this research gradually puts forward the steps of user characteristics analysis which including...
Integrating three-phase induction motor electromagnetic calculation program and multi-objective inverse optimization algorithm, a multi-objective & inverse three-phase induction motor optimization system with C++ is realized. This system can optimal design three-phase induction motor automatically. The design examples verify the effectiveness of the system.
An efficient channelized structure of digital channelized receiver is derived and given in order to save a lot of resources of FPGA. The actual system is designed and CORDIC algorithm is adopted to realize the extraction of signal envelope and instantaneous phase and first order phase difference algorithm is used to realize instantaneous frequency measurement. The efficient channelized structure is...
Multiplication of a point is the main operation in elliptic curves cryptography system. It is well-known this operation be expensive in time-consuming. we try to improve the computing efficiency of multiple point which will increase the efficiency of elliptic curves cryptography. In order to reach this goal, on the basis of addition-subtraction method, we adopt recursive formula of double point to...
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