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The term “maritime affairs” means in general the shipping (Maritime Services) and all things related to the sea, such as navigation, shipbuilding, surveying, maritime law, and processing the maritime accidents (including the navigation and berthing incidents). And the 71 percents of the earth's surface is covered with ocean, while the shipping is a low-cost, high-volume, long-distance transport. With...
The notion of the higher-dimensional matrix-valued wavelet packets is proposed. A method for designing biorthogonal matrix-valued multivariate wavelet packets is developed and their properties are discussed by means of time-frequency analysis method and matrix theory. Three orthogonality formulas concerning these wavelet packets are obtained. One new Riesz basis of L2 (Rd, Cr ?? r) are constructed...
In this paper, we present a music information retrieval system which enables users to retrieve music by vocal query. Three essential components are query processing, database construction by MIDI and an approximate search engine. For query processing, we have achieved a real-time and robust voice-to- melody converter. For database construction, proposed MIDI analysis methods to obtain music melody...
In this paper, the notion of an three-band Generalized Multiresolution Structure(GMS) of L2(R) is introduced. The properties of affine pseudoframes for subspaces with three-scale is characterized. The construction of a GMS of Paley-Wiener subspaces of L2(R) is investigated. The pyramid decomposition scheme is derived based on such a GMS. As a major new constribution the construction of affine frames...
Wavelet analysis has been developing a widely used mathematical branch for twenty years. In this work, the notion of biorthogonal multiple vector-valued trivariate wavelet packets is introduced. A new feasible method for designing them is presented. Their properties are characterized by using time-frequency analysis method, matrix theory and finite group theory. Three orthogonality formulas are established.
At Eurocrypt 2004, the concept of concurrent signatures was introduced by Chen, Kudla and Paterson. Concurrent signatures contribute a novel approach for the traditional problem of fair exchange of signatures. In this paper a general attack named the message substitute attack to the existing concurrent signatures protocol is proposed. Under the message substitute attack there is no concurrent in the...
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