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Traditional multi-channel cooperative spectrum sensing (CSS) scheme schedules a group of cognitive users (CU) to sense a particular channel in any given sensing slot, which means that the same sensing sequence pattern is shared by all CUs in the group. Although the sensing accuracy can be improved, the energy consumption will correspondingly increase. In(More)
This paper applied the technology of music retrieval by humming into music retrieval by humming, proposed a complete framework of humming retrieval. We has proposed a new energy-based note segmentation algorithm and a new approximate matching algorithm—similarity matching. Based on the note segmentation and pitch extraction, we use the(More)
Today, we often apply the intrusion detection to aid the firewall to maintain the network security. But now network intrusion detection have problem of higher false alarm rate, we apply the data warehouse and the data mining in intrusion detection and the technology of network traffic monitoring and analysis. After network data is processed by data mining,(More)
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