Results 281 to 290 of about 322,666 (307)
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Analytical feature extraction and spectral summation
Proceedings of 13th International Conference on Pattern Recognition, 1996We propose a formalism for analysing multilayer perceptron (MLP) networks as propagations of binary transitions along excitatory and inhibitory sensitised paths. By characterising a Boolean function as sets of detected transitions, we produce a spectral summation and construct a network from the derived weight constraints.
Terry Windeatt, Robert Tebbs
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Object recognition by clustering spectral features
Proceedings. International Conference on Image Processing, 2003We investigate whether vectors of graph spectral features can be used for the purposes of graph clustering. We commence from the eigenvalues and eigenvectors of the adjacency matrix. Each of the leading eigenmodes represents a cluster of nodes and is mapped to a component of a feature vector.
Bin Luo 0001 +2 more
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Spectral representations of linear features for generalisation
1995In this paper we propose the use of new representations of linear features in order to make up for the weakness of classical generalisation algorithms. Such representations are developed from spectral tools: Fourier series and wavelet decomposition.
Emmanuel Fritsch, Jean Philippe Lagrange
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Atlas of M7III Spectral Features in the Optical
Astrophysics and Space Science, 2003The difficulties encountered in attempts to study the spectra of very late stars inspired us to prepare this spectral atlas containing essentially spectral features of M7III stars in the optical spectral region. As representative star we took the cool component of the binary symbiotic CH Cygni during one of its quiescent phases.
Kotnik-Karuza, Dubravka +1 more
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Spatial and spectral features of polariton fluorescence
Journal of Luminescence, 1979The spatial properties of polariton fluorescence are shown to be of crucial importance to determine polariton fluorescence lineshapes. Comparison in GaAs of front and back-side fluorescence under resonant and non-resonant optical excitation of the no-phonon line and its LO-replica gives evidence of this spatial dependence.
C. Weisbuch, R. G. Ulbrich
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Features of the Spectral Density of a Spin System
Doklady Mathematics, 2018The article deals with thermodynamic properties of systems with classical spins. In particular, in the limit of large number \(N\) of spins the author finds a connection between the free energy \(f(\beta )\) (at temperature \(T=1/k \beta\)) and the `spectral density' \(D(E)\), i.e., the degeneracy of a generic energy level \(E\).
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Shape recognition using spectral features
Pattern Recognition Letters, 1998Summary: The classification of planar shapes using spectral features is presented in this paper. The contour of a planar shape is represented by the magnitude and phase of radial vectors drawn from a centroid, and they are modeled by an autoregressive process. The spectral features are extracted from the least squares estimators of the model parameters,
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Spectral transition features in dysarthric speech.
2008Some spectral transition features are introduced and tested in samples from dysarthric patients. The goal is to explore their potential as descriptors of articulatory deviations. This preliminary analysis includes only stop consonants extracted from the diadochokinetic task.
Hernández–díaz Huici, Maria E. +1 more
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A Multiscale Spectral Features Graph Fusion Method for Hyperspectral Band Selection
IEEE Transactions on Geoscience and Remote Sensing, 2022Weiwei Sun, Gang Yang, Jiangtao Peng
exaly