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We propose a method that can record extended sound fields generated by sound sources with arbitrary directivity. Sound field recordings given as a spherical harmonic expansion are valid within a region limited by the highest expansion order. In current methods, multiple spherical microphone arrays are used for recording sound fields over large regions. Previously, we proposed a method to take advantage...
The importance of dimension reduction has been increasing according to the growth of the size of available data in many fields. An appropriate dimension reduction method of raw data helps to reduce computational time and to expose the intrinsic structure of complex data. Sliced inverse regression is a well-known dimension reduction method for regression, which assumes an elliptical distribution for...
An appropriate dimension reduction of raw data helps to reduce computational time and to reveal the intrinsic structure of complex data. In this paper, a dimension reduction method for regression is proposed. The method is based on the well-known sliced inverse regression and conditional entropy minimization. Using entropy as a measure of dispersion of data distribution, dimension reduction subspace...
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