The demand for high-quality audio in transmission systems such as Digital Audio Broadcast (DAB) and High-Definition TeleVision (HDTV), as well as commercial products such as the MiniDisc (MD) and the Digital Compact Cassette (DCC), has generated considerable interest in audio compression schemes. The common objective is to achieve high quality at a rate significantly smaller than the 16 bits/sa...

Two-dimensional vector fields undergoing a Hopf bifurcation are studied in a Liouville-equation approach. The Liouville equation rules the time evolution of statistical ensembles of trajectories issued from random initial conditions, but evolving under the deterministic dynamics. The time evolution of the probability densities of such statistical ensembles can be decomposed in terms of the spec...

IS&T/SPIE Symposium on Electronic Imaging: Science and Technology, February 1995 We work towards a content-based image retrieval system, where queries can be image-like objects. At entry time, each image is processed to yield a large number of indices into its windows. A window is a square in a xed quad-tree decomposition of the image, and an index is a xed-size vector, called a descriptor, sim...

We detail and illustrate time series analysis and spectral inference in autoregressive models with a focus on the underlying latent structure and time series decompositions. A novel class of priors on parameters of latent components leads to a new class of smoothness priors on autoregressive coe cients, provides for formal inference on model order, including very high order models, and leads to...

The computational prediction of nonlinear interactive instabilities in three-dimensional boundary layers is obtained for a warm dense plasma boundary layer environment. The method is applied to the Richtmyer–Meshkov flow over the rippled surface of a laser-driven warm dense plasma experiment. Coupled, nonlinear spectral velocity equations of Lorenz form are solved with the mean boundary-layer v...

Y.X. Huang (黄永祥), 2, 3, 4, 5, 6, 7, ∗ F. G. Schmitt, 5, 6, † J.-P. 3 Hermand, Y. Gagne, Z.M. Lu (卢志明), 2, 3 and Y.L. Liu (刘宇陆) 2 4 Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China 5 Shanghai Key Laboratory of Mechanics in Energy and Environment Engineering, Yanchang Road, Shanghai 200072, China 6 E-Institutes of Shanghai Universities, Shanghai...