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This paper presents a novel algorithm for learning a hierarchical dictionary in the short-time Fourier (STFT) domain, which can improve the performance of dictionary learning (DL) based single-channel speech separation (SCSS). The goal of SCSS is to separate the underlying clean speeches from a signal mixture, which was often achieved by learning a pair of discriminative sub-dictionaries and sparsely...
Experimental teaching is considered to become more and more important in economics and management, at present, there are some problem in information and management laboratories. In this article, a new experimental teaching system is proposed, which is based on virtual company, and students are encouraged to think lonely in the system, there are simulation of environment of IS development and jobs...
Nowadays, many studies of the discovery of needs and feelings of the hotel customers are not only around before-booking period, but also do not consider the privacy of customers completely. While the best period of studies of this knowledge are after the booking took place, there are two major problems for its unpopular: one is personal privacy, the other is not having a scientific and valuable approach...
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