World's Best Scientists 2026 revealed!
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Computer Science
UK
2025

D-Index & Metrics

Computer Science

D-Index
70
Citations
32946
World Ranking
1825
National Ranking
103

Research.com Recognitions

  • 2025 - Research.com Computer Science in United Kingdom Leader Award
  • 2022 - Research.com Computer Science in United Kingdom Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Artificial intelligence
  • Statistics
  • Machine learning

William D. Penny mainly investigates Artificial intelligence, Bayes' theorem, Bayesian probability, Bayesian inference and Machine learning. His Artificial intelligence study integrates concerns from other disciplines, such as Causal model and Pattern recognition. His Causal model research is multidisciplinary, relying on both Cognition, Mathematical model and Dynamic causal modelling.

William D. Penny regularly ties together related areas like Linear model in his Bayes' theorem studies. His studies examine the connections between Bayesian inference and genetics, as well as such issues in Hyperparameter, with regards to Restricted maximum likelihood, Laplace's method, Mathematical optimization, Covariance and Gibbs sampling. His biological study spans a wide range of topics, including Information theory, Cognitive psychology, Functional magnetic resonance imaging and Functional integration.

His most cited work include:

  • Dynamic causal modelling. (3336 citations)
  • Statistical Parametric Mapping: The Analysis of Functional Brain Images (2078 citations)
  • Bayesian model selection for group studies. (1053 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of study are Artificial intelligence, Bayesian inference, Machine learning, Bayesian probability and Pattern recognition. His study in Algorithm extends to Artificial intelligence with its themes. His Machine learning research also works with subjects such as

  • Hidden Markov model that connect with fields like Bounded rationality,
  • Dynamic causal modelling which connect with Functional neuroimaging.

He interconnects Generalized linear model, Data mining and Linear model in the investigation of issues within Bayesian probability. His research in Pattern recognition focuses on subjects like Electroencephalography, which are connected to Neuroimaging and Elementary cognitive task. The concepts of his Bayes' theorem study are interwoven with issues in Overfitting and Causal model.

He most often published in these fields:

  • Artificial intelligence (56.19%)
  • Bayesian inference (29.38%)
  • Machine learning (26.29%)

What were the highlights of his more recent work (between 2014-2021)?

  • Artificial intelligence (56.19%)
  • Neuroscience (18.56%)
  • Bayesian inference (29.38%)

In recent papers he was focusing on the following fields of study:

William D. Penny mainly focuses on Artificial intelligence, Neuroscience, Bayesian inference, Inference and Set. The Artificial intelligence study combines topics in areas such as Machine learning, Empirical research and Pattern recognition. His work in the fields of Artificial neural network and Transfer of learning overlaps with other areas such as Field.

His study on Neuroimaging, Electroencephalography, Motor cortex and Prefrontal cortex is often connected to Variable as part of broader study in Neuroscience. His work is dedicated to discovering how Bayesian inference, Bayes' theorem are connected with Algorithm, Dissociation and Impulsivity and other disciplines. William D. Penny has researched Inference in several fields, including Stimulus and Multivariate analysis.

Between 2014 and 2021, his most popular works were:

  • Behavioral modeling of human choices reveals dissociable effects of physical effort and temporal delay on reward devaluation. (62 citations)
  • The Neural Representation of Prospective Choice during Spatial Planning and Decisions. (49 citations)
  • Causal evidence that intrinsic beta-frequency is relevant for enhanced signal propagation in the motor system as shown through rhythmic TMS. (49 citations)

In his most recent research, the most cited papers focused on:

  • Statistics
  • Artificial intelligence
  • Machine learning

Neuroscience, Bayes' theorem, Motor cortex, Brain mapping and Markov chain Monte Carlo are his primary areas of study. William D. Penny combines subjects such as Pattern recognition and Bayesian inference with his study of Bayes' theorem. His studies in Pattern recognition integrate themes in fields like Bayes estimator and Machine learning.

His research integrates issues of Beta Rhythm, Motor system, Dynamic causal modelling and Pyramidal tracts in his study of Motor cortex. His Brain mapping research integrates issues from Frontal lobe, Functional magnetic resonance imaging and Prefrontal cortex. Many of his research projects under Artificial intelligence are closely connected to Detector and Group-level effects with Detector and Group-level effects, tying the diverse disciplines of science together.

Best Publications

  • Dynamic causal modelling.

    Karl J. Friston;Lee M. Harrison;William D. Penny

  • Statistical Parametric Mapping: The Analysis of Functional Brain Images

    W Penny;K Friston;J Ashburner;S Kiebel

  • Bayesian model selection for group studies.

    Klaas Enno Stephan;Will D. Penny;Jean Daunizeau;Rosalyn J. Moran

  • Comparing dynamic causal models

    William D. Penny;Klaas E. Stephan;Andrea Mechelli;Karl J. Friston

  • Variational free energy and the Laplace approximation

    Karl J. Friston;Jérémie Mattout;Nelson J. Trujillo-Barreto;John Ashburner

  • Ten simple rules for dynamic causal modeling.

    K.E. Stephan;K.E. Stephan;W.D. Penny;R.J. Moran;H.E.M. den Ouden

  • Modeling regional and psychophysiologic interactions in fMRI: the importance of hemodynamic deconvolution.

    Darren R. Gitelman;William D. Penny;John Ashburner;Karl J. Friston

  • Comparing families of dynamic causal models.

    Will D. Penny;Klaas E. Stephan;Klaas E. Stephan;Jean Daunizeau;Maria J. Rosa

  • Classical and Bayesian inference in neuroimaging: theory.

    Karl J. Friston;William D. Penny;Christophe Phillips;Stefan J. Kiebel

  • EEG and MEG data analysis in SPM8.

    Vladimir Litvak;Jérémie Mattout;Stefan J. Kiebel;Christophe Phillips

  • Multivariate autoregressive modeling of fMRI time series

    Lee M. Harrison;William D. Penny;Karl J. Friston

  • Modelling functional integration:a comparison of structural equation and dynamic causal models

    W D Penny;K E Stephan;A Mechelli;K J Friston

  • Bayesian approaches to Gaussian mixture modeling

    S.J. Roberts;D. Husmeier;I. Rezek;W. Penny

  • Comparing Dynamic Causal Models using AIC, BIC and Free Energy

    William D. Penny

  • Post hoc Bayesian model selection

    Karl J. Friston;Will D. Penny

  • EEG-based communication: a pattern recognition approach

    W.D. Penny;S.J. Roberts;E.A. Curran;M.J. Stokes

  • Bayesian fMRI time series analysis with spatial priors.

    William D. Penny;Nelson J. Trujillo-Barreto;Karl J. Friston

  • Information theory, novelty and hippocampal responses: unpredicted or unpredictable?

    Bryan A. Strange;Andrew Duggins;William Penny;Raymond J. Dolan

  • Testing for nested oscillation

    W.D. Penny;E. Duzel;K.J. Miller;J.G. Ojemann

  • Posterior probability maps and SPMs.

    Karl J. Friston;William D. Penny

  • Dynamic causal models of neural system dynamics: current state and future extensions

    Klaas E Stephan;Lee M Harrison;Lee M Harrison;Stefan J Kiebel;Stefan J Kiebel;Olivier David

Frequent Co-Authors

Karl J. Friston
Karl J. Friston University College London
Stephen J. Roberts
Stephen J. Roberts University of Oxford
Klaas E. Stephan
Klaas E. Stephan University of Zurich
Emrah Düzel
Emrah Düzel German Center for Neurodegenerative Diseases
Guillaume Flandin
Guillaume Flandin University College London
Gareth R. Barnes
Gareth R. Barnes University College London
Alexander P. Leff
Alexander P. Leff University College London
John Ashburner
John Ashburner University College London
Jean Daunizeau
Jean Daunizeau Grenoble Alpes University
Cathy J. Price
Cathy J. Price University College London

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