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In order to extend basic functions of wireless sensor network (WSN), many researchers have begun to study rechargeable wireless sensor networks that use of Wireless Charging Technology to supply power for sensor nodes so that the wireless sensor networks have the sustainability. The main classifications of wireless charger antenna are Directional Antenna and Unidirectional Antenna respectively. We...
A novel steganographic algorithm for ternay data based on ZZW construction over F_3 is proposed to improve the embedding efficiency. Contrast to the conventional ZZW construction using binary Hamming codes in the second channel, the proposed method employs ternary Hamming codes to embed the message at the second channel. For the first channel, a low rate convolutional codes is presented to enhance...
Support vector machines (SVMs) have been successfully applied to classification problems. Practical issues Involve how to determine the right type and suitable hyperparameters of kernel functions. Recently, multiple-kernel learning (MKL) algorithms are developed to handle these issues by combining different kernels. The weight with each kernel in the combination is obtained through learning. One of...
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