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The rapid development of financial markets make the financial data variability and unpredictability, the abnormal fluctuations in financial data often contain important information. Financial data is generated over time, so the time series mining method widely used in the financial data of anomaly detection. The traditional time series of anomaly detection method is to find out one of the biggest...
For the problems of Chinese text similarity calculation based on word frequency statistics, this paper proposed a method by using machine translation to translate Chinese text into English text, indirectly calculate similarity of given texts. This method can avoid some shortcomings of Chinese word segmentation and utilize the advantages of the natural word segmentation of English, and also can use...
Avionics system is the critical equipment for autonomous helicopter. In this paper, the detailed design scheme of avionics system for mini autonomous helicopter was proposed. Firstly, the overall structure of the proposed avionics system was introduced, the system is composed of airborne sensors, flight control computer, power system, wireless communications link and remote control link. Then the...
Aiming at the inherent limitation of high frequency acoustic signals acquisition real-time, a design of multi-channel acoustic signals acquisition and storage system is proposed in this paper, in which single chip acts as control cell, TF memory card as the memory device and FPGA as the high-speed interface of data buffering and format conversion. fat file system is built in TF memory card and acquisition...
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