ORCID Profile
0000-0002-3733-1474
Current Organisation
University of New South Wales
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Econometric And Statistical Methods | Statistics | Econometric and Statistical Methods | Econometrics | Stochastic Analysis And Modelling | Statistical Theory | Simulation And Modelling | Finance | Applied Statistics | Statistical Theory | Banking, Finance and Investment | Psychological Methodology, Design and Analysis | Time-Series Analysis | Artificial Intelligence and Image Processing | Financial Econometrics | Knowledge Representation and Machine Learning | Signal Processing | Operations Research | Panel Data Analysis | Time-Series Analysis | Statistical Mechanics, Physical Combinatorics and Mathematical Aspects of Condensed Matter | Stochastic Analysis and Modelling | Psychology | Natural Resource Management | Health Economics
Mathematical sciences | Expanding Knowledge in the Mathematical Sciences | Finance and investment services | Information processing services | Energy systems analysis | Expanding Knowledge in Psychology and Cognitive Sciences | Prevention and treatment of pollution | Environmental Management Systems | Preference, Behaviour and Welfare | Expanding Knowledge in Economics | Biological sciences | Expanding Knowledge in the Medical and Health Sciences | Economic issues not elsewhere classified | Expanding Knowledge in the Environmental Sciences | Behaviour and Health | Health Related to Ageing | Precious (Noble) Metal Ore Exploration | Mining Land and Water Management |
Publisher: Informa UK Limited
Date: 12-1991
Publisher: Informa UK Limited
Date: 02-10-2017
Publisher: Oxford University Press (OUP)
Date: 1987
Publisher: Informa UK Limited
Date: 05-1985
Publisher: Elsevier BV
Date: 10-1996
Publisher: Elsevier BV
Date: 04-1990
Publisher: Informa UK Limited
Date: 09-2000
Publisher: Informa UK Limited
Date: 03-1998
Publisher: Elsevier
Date: 2005
Publisher: Elsevier BV
Date: 12-1996
Publisher: Wiley
Date: 1997
Publisher: American Psychological Association (APA)
Date: 04-2022
DOI: 10.1037/REV0000351
Abstract: Many psychological experiments have subjects repeat a task to gain the statistical precision required to test quantitative theories of psychological performance. In such experiments, time-on-task can have sizable effects on performance, changing the psychological processes under investigation. Most research has either ignored these changes, treating the underlying process as static, or sacrificed some psychological content of the models for statistical simplicity. We use particle Markov chain Monte-Carlo methods to study psychologically plausible time-varying changes in model parameters. Using data from three highly cited experiments, we find strong evidence in favor of a hidden Markov switching process as an explanation of time-varying effects. This embodies the psychological assumption of "regime switching," with subjects alternating between different cognitive states representing different modes of decision-making. The switching model explains key long- and short-term dynamic effects in the data. The central idea of our approach can be applied quite generally to quantitative psychological theories, beyond the models and datasets that we investigate. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
Publisher: Oxford University Press (OUP)
Date: 1982
Publisher: Springer Science and Business Media LLC
Date: 22-06-2020
Publisher: Springer Science and Business Media LLC
Date: 11-02-2008
Publisher: Springer Science and Business Media LLC
Date: 30-01-2007
Publisher: Elsevier BV
Date: 04-2014
Publisher: Cambridge University Press (CUP)
Date: 12-1994
DOI: 10.1017/S1446788700037721
Abstract: The backfitting algorithm is an iterative procedure for fitting additive models in which, at each step, one component is estimated keeping the other components fixed, the algorithm proceeding component by component and iterating until convergence. Convergence of the algorithm has been studied by Buja, Hastie, and Tibshirani (1989). We give a simple, but more general, geometric proof of the convergence of the backfitting algorithm when the additive components are estimated by penalized least squares. Our treatment covers spline smoothers and structural time series models, and we give a full discussion of the degenerate case. Our proof is based on Halperin's (1962) generalization of von Neumann's alternating projection theorem.
Publisher: Informa UK Limited
Date: 16-08-2019
Publisher: Informa UK Limited
Date: 06-2008
Publisher: Informa UK Limited
Date: 16-07-2019
Publisher: Informa UK Limited
Date: 2011
Publisher: Springer Science and Business Media LLC
Date: 18-09-2014
Publisher: Elsevier BV
Date: 1989
Publisher: Springer Science and Business Media LLC
Date: 14-01-2020
Publisher: Oxford University Press (OUP)
Date: 1983
Publisher: Oxford University Press (OUP)
Date: 10-09-2012
Publisher: Oxford University Press (OUP)
Date: 09-1996
Publisher: Springer Science and Business Media LLC
Date: 2001
Publisher: Wiley
Date: 06-2006
Publisher: Oxford University Press (OUP)
Date: 07-2009
Publisher: Informa UK Limited
Date: 06-2008
Publisher: Institute of Mathematical Statistics
Date: 2012
DOI: 10.1214/12-EJS705
Publisher: Oxford University Press (OUP)
Date: 1986
Publisher: Oxford University Press (OUP)
Date: 07-03-2015
Publisher: Informa UK Limited
Date: 09-1999
Publisher: Oxford University Press (OUP)
Date: 07-1998
Abstract: A Bayesian approach is presented for nonparametric estimation of an additive regression model with autocorrelated errors. Each of the potentially non-linear components is modelled as a regression spline using many knots, while the errors are modelled by a high order stationary autoregressive process parameterized in terms of its autocorrelations. The distribution of significant knots and partial autocorrelations is accounted for using subset selection. Our approach also allows the selection of a suitable transformation of the dependent variable. All aspects of the model are estimated simultaneously by using the Markov chain Monte Carlo method. It is shown empirically that the approach proposed works well on several simulated and real ex les.
Publisher: Oxford University Press (OUP)
Date: 12-2005
Publisher: Elsevier BV
Date: 12-2010
Publisher: Informa UK Limited
Date: 24-11-2010
Publisher: Elsevier BV
Date: 2016
Publisher: Informa UK Limited
Date: 02-10-2014
Publisher: Springer Science and Business Media LLC
Date: 08-2002
Publisher: Informa UK Limited
Date: 09-2001
Publisher: Elsevier BV
Date: 11-2014
Publisher: Oxford University Press (OUP)
Date: 1983
Publisher: Elsevier BV
Date: 10-2000
Publisher: Elsevier BV
Date: 10-2021
Publisher: Elsevier BV
Date: 04-1982
Publisher: Elsevier BV
Date: 12-2012
Publisher: Springer Science and Business Media LLC
Date: 10-12-2019
Publisher: Elsevier BV
Date: 07-2012
Publisher: Informa UK Limited
Date: 09-1985
Publisher: Oxford University Press (OUP)
Date: 1989
Publisher: Elsevier BV
Date: 03-2007
Publisher: Wiley
Date: 12-10-2012
DOI: 10.1002/JAE.1215
Publisher: Oxford University Press (OUP)
Date: 1985
Publisher: Informa UK Limited
Date: 12-1992
Publisher: Oxford University Press (OUP)
Date: 12-2003
Publisher: Elsevier BV
Date: 12-2010
Publisher: Informa UK Limited
Date: 07-2012
Publisher: Institute of Mathematical Statistics
Date: 11-2016
DOI: 10.1214/15-AIHP695
Publisher: Informa UK Limited
Date: 12-2002
Publisher: Oxford University Press (OUP)
Date: 1987
Publisher: Oxford University Press (OUP)
Date: 1994
Publisher: Informa UK Limited
Date: 06-1986
Publisher: Oxford University Press (OUP)
Date: 1984
Publisher: Informa UK Limited
Date: 09-1986
Publisher: Informa UK Limited
Date: 02-12-2022
Publisher: Wiley
Date: 15-04-2011
Publisher: Oxford University Press (OUP)
Date: 1977
Publisher: Oxford University Press (OUP)
Date: 09-2006
Publisher: Oxford University Press (OUP)
Date: 07-01-2020
DOI: 10.1111/RSSC.12393
Abstract: The paper considers the problem of estimating a multivariate probit model in a panel data setting with emphasis on s ling a high dimensional correlation matrix and improving the overall efficiency of the data augmentation approach. We reparameterize the correlation matrix in a principled way and then carry out efficient Bayesian inference by using Hamiltonian Monte Carlo s ling. We also propose a novel antithetic variable method to generate s les from the posterior distribution of the random effects and regression coefficients, resulting in significant gains in efficiency. We apply the methodology by analysing stated preference data obtained from Australian general practitioners evaluating alternative contraceptive products. Our analysis suggests that the joint probability of discussing combinations of contraceptive products with a patient shows medical practice variation among the general practitioners, which indicates some resistance even to discuss these products, let alone to recommend them.
Publisher: Springer Science and Business Media LLC
Date: 09-09-2020
Publisher: Oxford University Press
Date: 29-09-2011
DOI: 10.1093/OXFORDHB/9780199559084.013.0004
Abstract: This article provides a description of time series methods that emphasize modern macroeconomics and finance. It discusses a variety of posterior simulation algorithms and illustrates their use in a range of models. This article introduces the state space framework and explains the main ideas behind filtering, smoothing, and likelihood computation. It also mentions the particle filter as a general approach for estimating state space models and gives a brief discussion of its methods. The particle filter is a very useful tool in the Bayesian analysis of the kinds of complicated nonlinear state space models that are increasingly being used in macroeconomics. It also deals with conditionally Gaussian state space models and non-Gaussian state space models. A discussion of the advantages and disadvantages of each algorithm is provided in this article. This aims to help with the use of these methods in empirical work.
Publisher: Springer Science and Business Media LLC
Date: 10-2020
Publisher: Informa UK Limited
Date: 09-1990
Publisher: Elsevier BV
Date: 09-2000
Publisher: American Psychological Association (APA)
Date: 21-04-2022
DOI: 10.1037/MET0000458
Abstract: Model comparison is the cornerstone of theoretical progress in psychological research. Common practice overwhelmingly relies on tools that evaluate competing models by balancing in-s le descriptive adequacy against model flexibility, with modern approaches advocating the use of marginal likelihood for hierarchical cognitive models. Cross-validation is another popular approach but its implementation remains out of reach for cognitive models evaluated in a Bayesian hierarchical framework, with the major hurdle being its prohibitive computational cost. To address this issue, we develop novel algorithms that make variational Bayes (VB) inference for hierarchical models feasible and computationally efficient for complex cognitive models of substantive theoretical interest. It is well known that VB produces good estimates of the first moments of the parameters, which gives good predictive densities estimates. We thus develop a novel VB algorithm with Bayesian prediction as a tool to perform model comparison by cross-validation, which we refer to as CVVB. In particular, CVVB can be used as a model screening device that quickly identifies bad models. We demonstrate the utility of CVVB by revisiting a classic question in decision making research: what latent components of processing drive the ubiquitous speed-accuracy tradeoff? We demonstrate that CVVB strongly agrees with model comparison via marginal likelihood, yet achieves the outcome in much less time. Our approach brings cross-validation within reach of theoretically important psychological models, making it feasible to compare much larger families of hierarchically specified cognitive models than has previously been possible. To enhance the applicability of the algorithm, we provide Matlab code together with a user manual so users can easily implement VB and/or CVVB for the models considered in this article and their variants. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
Publisher: Informa UK Limited
Date: 10-1982
Publisher: Oxford University Press (OUP)
Date: 1997
Abstract: A Bayesian analysis is presented of a time series which is the sum of a stationary component with a smooth spectral density and a deterministic component consisting of a linear combination of a trend and periodic terms. The periodic terms may have known or unknown frequencies. The advantage of our approach is that different features of the data—such as the regression parameters, the spectral density, unknown frequencies and missing observations—are combined in a hierarchical Bayesian framework and estimated simultaneously. A Bayesian test to detect deterministic components in the data is also constructed. By using an asymptotic approximation to the likelihood, the computation is carried out efficiently using the Markov chain Monte Carlo method in O(Mn) operations, where nis the s le size and Mis the number of iterations. We show empirically that our approach works well on real and simulated s les.
Publisher: Wiley
Date: 04-2002
Publisher: Oxford University Press (OUP)
Date: 1993
Publisher: Informa UK Limited
Date: 12-1997
Publisher: Elsevier BV
Date: 10-1992
Publisher: Elsevier BV
Date: 12-2009
Publisher: Elsevier BV
Date: 05-2011
Publisher: Elsevier BV
Date: 12-2012
Publisher: Elsevier BV
Date: 04-2009
Publisher: Elsevier BV
Date: 06-2020
Publisher: Informa UK Limited
Date: 12-2006
Publisher: Informa UK Limited
Date: 04-1993
Publisher: Springer Science and Business Media LLC
Date: 12-2018
Publisher: Informa UK Limited
Date: 11-07-2020
Publisher: Springer Science and Business Media LLC
Date: 2003
Publisher: Oxford University Press (OUP)
Date: 1985
Publisher: Informa UK Limited
Date: 2010
Publisher: Elsevier BV
Date: 11-1995
Publisher: Informa UK Limited
Date: 09-2006
Publisher: Informa UK Limited
Date: 09-1986
Publisher: Informa UK Limited
Date: 09-1999
Publisher: Oxford University Press (OUP)
Date: 2002
Abstract: A Bayesian approach is presented for model selection in nonparametric regression with Gaussian errors and in binary nonparametric regression. A smoothness prior is assumed for each component of the model and the posterior probabilities of the candidate models are approximated using the Bayesian information criterion. We study the model selection method by simulation and show that it has excellent frequentist properties and gives improved estimates of the regression surface. All the computations are carried out efficiently using the Gibbs s ler.
Publisher: Elsevier BV
Date: 10-1996
Publisher: Oxford University Press (OUP)
Date: 1992
Publisher: Elsevier BV
Date: 09-1994
Publisher: Informa UK Limited
Date: 02-04-2016
Publisher: Elsevier BV
Date: 10-2022
Publisher: Wiley
Date: 05-1999
Publisher: Institute of Mathematical Statistics
Date: 09-2009
DOI: 10.1214/09-BA421
Publisher: Elsevier BV
Date: 12-1978
Publisher: Informa UK Limited
Date: 03-2003
Publisher: Informa UK Limited
Date: 2008
Publisher: Wiley
Date: 05-1990
Publisher: Informa UK Limited
Date: 28-07-2018
Publisher: Elsevier
Date: 2008
Publisher: Informa UK Limited
Date: 10-2013
Publisher: Elsevier BV
Date: 1981
Publisher: Elsevier BV
Date: 05-2015
Publisher: Elsevier BV
Date: 1997
Publisher: Informa UK Limited
Date: 12-1991
Publisher: Wiley
Date: 03-1996
Publisher: Oxford University Press (OUP)
Date: 1986
Publisher: JSTOR
Date: 07-1979
DOI: 10.2307/1914144
Publisher: Wiley
Date: 07-1990
Start Date: 2004
End Date: 06-2008
Amount: $285,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 2006
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View Funded ActivityStart Date: 07-2003
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View Funded ActivityStart Date: 07-2012
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View Funded ActivityStart Date: 07-2021
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View Funded ActivityStart Date: 2018
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View Funded ActivityStart Date: 08-2005
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View Funded ActivityStart Date: 01-2004
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View Funded ActivityStart Date: 08-2020
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