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The Chinese stock market is ever changing and will play an increasingly important role in the global financial system. By analyzing topological properties of this market and temporal changes, this paper investigates network dynamics of this market by emphasizing interdependencies between stocks. This study partially selects 176 constituent stocks of CSI 300 index during the period of January 2009...
To solve the problem of recognize the causation factor characteristics of emergency in supply chain in different industries, the paper established causation factor index system of emergency in supply chain based on system analytical method, and at the same time, put forward a causation factor characteristics recognition model for emergency in supply chain based on principal component analysis and...
It is a hot issue of current research that how to strengthen the land use management, so that resources and environmental capacity, land development costs and industrial construction and agricultural production would be spatial balanced to promote regional sustainable development in rapid urbanization and industrialization process. A Case Study in Langfang city of Hebei province was made. Based on...
In this paper, coherent detection for multilevel correlated signaling sets in additive white Gaussian noise is addressed. The contribution is twofold. Firstly, correlation structures that minimize the symbol error probability (SEP) of M-ary frequency-shift keying as well as of arbitrarily correlated signaling sets are investigated, while secondly, a general and analytical expression for the SEP is...
In this paper, the influence of overlapping of pulse signal sources on their correlation matrix and activity index is studied. The activity index is defined as a Mahalanobis distance of signal observations. Influences of source overlapping on activity index were simulated for a different number of overlapping sources and degrees of their overlapping. The findings lead to an improved model of activity...
This work addresses the problem of estimating the number of signal sources in convolutive signal mixtures. Our approach is based on the blind source separation. The first step builds a measure of the global activity of all active sources. This measure is known as activity index, and is based on the inverse of correlation matrix of the observed signals. The next step analyses the activity index variance...
Video indexing technique is crucial in multimedia applications. In the case of HD (high definition) video, the principle of scalability is of great importance. The wavelet decomposition used in the MJPEG2000 provides this property. In this paper, two descriptors for indexing of HD video are presented. The first one is based on the GM (global motion) of the video and the correlation matrix is used...
This paper uses the ultrametric clustering which is based on time series of stock prices. By calculating the ultrametric distance-matrix of the stocks in Shanghai-Shenzhen 300 index, a minimum spanning tree (MST) which has certain topological meaning can be drawn. And this MST explains the physical correlation between the topological structure and economic classification of the stocks trading on markets.
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