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In this paper, we propose an approximate semi-definite programming framework for demodulation and equalization of non-coherent ultra-wide-band communication systems with inter-symbol-interference. It is assumed that the communication systems follow non-linear second-order Volterra models. We formulate the demodulation and equalization problems as semi-definite programming problems. We propose an approximate...
With the explosive deployment of "triple play" (voice, video and data services) over the same access network, guaranteeing a certain-level of survivability for the access network is becoming critical for service providers. The problem of economically provisioning survivable access networks has given rise to a new class of network design problems, including the so-called survivable multi-level...
Attribute reduction is an important issue in data mining and knowledge acquisition. It has been proven that computing all reductions and optimal (minimal) reduction is a NP-hard problem. This paper proposed a hybrid approach using the rough set theory and neighborhood systems for feature selection. Two neighborhood approximation operators are defined based on rough set. A neighborhood rough model...
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