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Modeling Perception of Spectral Profile Changes
(1993)
In this thesis, we explore how the human auditory system represents and detects changes in a spectral profile. First, using profile analysis methods, we measure listeners' sensitivities to changes in spectral peak shapes ...
Signal Detection Games with Power Constraints
(1993)
In this paper we formulate mathematically and solve maximin and minimax detection problems for signals with power constraints. These problems arise whenever it is necessary to distinguish between a genuine signal and a ...
Representation of Spectral Profiles in the Auditory System, II: Detection of Spectral Peak Shape Changes
(1994)
Based on the ripple analysis model outlined in Part I of this paper, predictions are made for the detection of shape changes in spectral peak profiles. Peak shape is uniquely described in terms of two parameters: bandwidth ...
Minimum Mean Square Error Estimation of Connectivity in Biological Neural Networks
(1991)
A minimum mean square error (MMSE) estimation scheme is employed to identify the synaptic connectivity in neural networks. This new approach can substantially reduce the amount of data and the computational cost involved ...
One-Step Memory Nonlinearities for Signal Detection and Discrimination from Correlated Observations
(1992)
New detectors employing test statistics which are formed by passing pairs of consecutive observations through one-step memory nonlinearities g(x, y) and summing the resulting terms are introduced. Problems of discrimination ...
Ripple Analysis in Ferret Primary Auditory Cortex. II. Topographic and Columnar Distribution of Ripple Response Parameters
(1994)
We examined the columnar and topographic distribution of response parameters using spectral ripples and tonal stimuli in the primary auditory cortex (AI) of the barbiturate-anesthetized ferret. The ripple stimuli consisted ...
Conditions for the Equivalence of ARMAX and ARX Systems
(1991)
It is shown that an autoregressive moving average with exogenous input (ARMAX) system can be represented as an autoregressive with exogenous input (ARX) model if and only if the transfer function from the noise port to the ...
Representation of Spectral Profiles in the Auditory System Part II: A Ripple Analysis Model
(1993)
Based on experimental results presented in [Vranic-Sowers and Shamma, 1993], and on further physiological and psychoacoustical evidence, it is argued that the auditory system analyzes a spectral profile along two largely ...
Reconstruction of Stochastic Processes Using Frames
(1991)
This note discusses sampling in a general context and shows that the (dual) frame reconstruction formula holds for stochastic processes, in quadratic mean. Specifically we show that if the covariance can be reconstructed ...
On Optimal Shaping of Multidimensional Constellations - An Alternative Approach to Lattice-Bounded (Voronoi) Constellations
(1992)
A scheme for the optimal shaping of multidimensional constellations is proposed. This scheme uses some of the ideas from a type of structured vector quantizer originally proposed for the quantization of memoryless sources, ...