Search Results - "Aston, J. A. D"

Unifying Amplitude and Phase Analysis: A Compositional Data Approach to Functional Multivariate Mixed-Effects Modeling of Mandarin Chinese by Hadjipantelis, P. Z., Aston, J. A. D., Müller, H. G., Evans, J. P.

“…Mandarin Chinese is characterized by being a tonal language; the pitch (or F ₀) of its utterances carries considerable linguistic information. However, speech…”
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Distances and inference for covariance operators by PIGOLI, DAVIDE, ASTON, JOHN A. D., DRYDEN, IAN L., SECCHI, PIERCESARE

“…A framework is developed for inference concerning the covariance operator of a functional random process, where the covariance operator itself is an object of…”
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Divide-and-Conquer With Sequential Monte Carlo by Lindsten, F., Johansen, A. M., Naesseth, C. A., Kirkpatrick, B., Schön, T. B., Aston, J. A. D., Bouchard-Côté, A.

“…We propose a novel class of Sequential Monte Carlo (SMC) algorithms, appropriate for inference in probabilistic graphical models. This class of algorithms…”
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A data-centric bottom-up model for generation of stochastic internal load profiles based on space-use type by Ward, R. M., Choudhary, R., Heo, Y., Aston, J. A. D.

“…There is currently no established methodology for the generation of synthetic stochastic internal load profiles for input into building energy simulation. In…”
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Multi-resolution Bayesian regression in PET dynamic studies using wavelets by Turkheimer, F.E., Aston, J.A.D., Asselin, M.-C., Hinz, R.

“…In the kinetic analysis of dynamic PET data, one usually posits that the variation of the data through one dimension, time, can be described by a mathematical…”
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Modeling Macroeconomic Time Series via Heavy Tailed Distributions by Aston, J. A. D.

“…It has been shown that some macroeconomic time series, especially those where outliers could be present, can be well modelled using heavy tailed distributions…”
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The correlation space of Gaussian latent tree models and model selection without fitting by SHIERS, N., ZWIERNIK, P., ASTON, J. A. D., SMITH, J. Q.

“…We provide a complete description of possible distributions consistent with any Gaussian latent tree model. This description consists of polynomial equations…”
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Dynamic functional changes associated with cognitive skill learning of an adapted version of the Tower of London task by Beauchamp, M.H, Dagher, A, Aston, J.A.D, Doyon, J

“…In this study, we used a modified version of the Tower of London (TOL) planning task, in conjunction with positron emission tomography, to examine the neural…”
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MR Image Segmentation Using a Power Transformation Approach by Juin-Der Lee, Hong-Ren Su, Cheng, P.E., Liou, M., Aston, J., Tsai, A.C., Cheng-Yu Chen

“…This study proposes a segmentation method for brain MR images using a distribution transformation approach. The method extends traditional Gaussian mixtures…”
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Implied distributions in multiple change point problems by Aston, J. A. D., Peng, J. Y., Martin, D. E. K.

“…A method for efficiently calculating exact marginal, conditional and joint distributions for change points defined by general finite state Hidden Markov Models…”
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Estimating the Delay of the fMRI Response by Liao, C.H., Worsley, K.J., Poline, J.-B., Aston, J.A.D., Duncan, G.H., Evans, A.C.

“…We propose a fast, efficient, general, simple, valid, and robust method of estimating and making inference about the delay of the fMRI response modeled as a…”
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A linear wavelet filter for parametric imaging with dynamic PET by Turkheimer, F.E., Aston, J.A.D., Banati, R.B., Riddell, C., Cunningham, V.J.

“…Describes a new filter for parametric images obtained from dynamic positron emission tomography (PET) studies. The filter is based on the wavelet transform…”
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Modeling Dynamic PET-SPECT Studies in the Wavelet Domain by Turkheimer, Federico E., Banati, Richard B., Visvikis, Dimitris, Aston, John A. D., Gunn, Roger N., Cunningham, Vincent J.

“…This work develops a theoretical framework and corresponding algorithms for the modeling of dynamic PET-SPECT studies both in time and space. The problem of…”
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Estimation of temperature-dependent growth profiles for the assessment of time of hatching in forensic entomology by Pigoli, D, Aston, J. A. D, Ferraty, F, Mazumder, A, Richards, C, Hall, M. J. R

“…Forensic entomology contributes important information to crime scene investigations. In this paper, we propose a method to estimate the hatching time of larvae…”
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Modeling macroeconomic time series via heavy tailed distributions by Aston, J. A. D

“…IMS Lecture Notes Monograph Series 2006, Vol. 52, 138-148 It has been shown that some macroeconomic time series, especially those where outliers could be…”
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Bayesian model comparison via path-sampling sequential Monte Carlo by Yan Zhou, Johansen, A. M., Aston, J. A. D.

“…Model comparison for the purposes of selection, averaging and validation is a problem which is found throughout statistics and signal processing. Within the…”
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