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How we manage Web services depends on how we understand their variable parts and invariable parts. Studying them separately could make Web service research much easier and make our software architecture much more loose-coupled. We summarize two variable parts that affect Web service compositions: uncertain invocation results and uncertain quality of services. These uncertain factors affect success...
In recent years, China's degree of dependence on foreign oil has been getting higher and higher. The fluctuation of international crude oil price has an enormous influence on China's import of crude oil, which continually shocks the economic development of China. In this paper, the Markov Property of international oil price fluctuation is proven, and Markov Chain's stable State Transition Probability...
Based on the framework of markov game theory, the attack engagement maneuvering strategy of 1 vs. 1 air combat is studied. First, the markov game model of air combat of two fighters is established with an introduction of its state space description and action set, and the maneuvering target set of both rivals is established. Second, the fuzzy theory is utilized and a fuzzy markov model framework is...
In the paper, a new blind image steganalysis scheme for JPEG image steganography is proposed. Space filling curve is exploited to scan quantized block DCT coefficients. Markov model is applied to model the dependencies between quantized DCT cofficients so as to extract intrablock and interblock transition probability matrices. The experiments on F5, Steghide and MB1 steganography show the method can...
In the paper, a new universal image steganalysis system based on wavelet packet decomposition (WPD) and empirical transition matrix in wavelet domain is proposed. First, it decomposes the test image using two-level Haar WPD. The statistical analysis is made both for the test image and their wavelet packet subbands. Second, it exploits the interscale and intrascale dependencies between wavelet coefficients...
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