Search Results for author: Lloyd Allison

Found 8 papers, 1 papers with code

The divergence time of protein structures modelled by Markov matrices and its relation to the divergence of sequences

no code implementations11 Aug 2023 Sandun Rajapaksa, Lloyd Allison, Peter J. Stuckey, Maria Garcia de la Banda, Arun S. Konagurthu

Using these inferred models and the relationship between the divergence of sequences and structures, we demonstrate a competitive performance in secondary structure prediction against neural network architectures commonly employed for this task.

Subclasses of Class Function used to Implement Transformations of Statistical Models

no code implementations9 Jul 2022 Lloyd Allison

A library of software for inductive inference guided by the Minimum Message Length (MML) principle was created previously.

Object

Causal KL: Evaluating Causal Discovery

no code implementations11 Nov 2021 Rodney T. O'Donnell, Kevin B. Korb, Lloyd Allison

The two most commonly used criteria for assessing causal model discovery with artificial data are edit-distance and Kullback-Leibler divergence, measured from the true model to the learned model.

Causal Discovery Model Discovery

Markov Blanket Discovery using Minimum Message Length

no code implementations16 Jul 2021 Yang Li, Kevin B Korb, Lloyd Allison

Causal discovery automates the learning of causal Bayesian networks from data and has been of active interest from their beginning.

Causal Discovery feature selection

Bridging the Gaps in Statistical Models of Protein Alignment

no code implementations2 Oct 2020 Dinithi Sumanaweera, Lloyd Allison, Arun S. Konagurthu

This work demonstrates how a complete statistical model quantifying the evolution of pairs of aligned proteins can be constructed from a time-parameterised substitution matrix and a time-parameterised 3-state alignment machine.

Proving the NP-completeness of optimal moral graph triangulation

no code implementations6 Mar 2019 Yang Li, Lloyd Allison, Kevin Korb

Moral graphs were introduced in the 1980s as an intermediate step when transforming a Bayesian network to a junction tree, on which exact belief propagation can be efficiently done.

The Complexity of Morality: Checking Markov Blanket Consistency with DAGs via Morality

1 code implementation5 Mar 2019 Yang Li, Kevin Korb, Lloyd Allison

A family of Markov blankets in a faithful Bayesian network satisfies the symmetry and consistency properties.

Minimum message length estimation of mixtures of multivariate Gaussian and von Mises-Fisher distributions

no code implementations27 Feb 2015 Parthan Kasarapu, Lloyd Allison

The key contributions of this paper, in addition to the general search and inference methodology, include the derivation of MML expressions for encoding the data using multivariate Gaussian and von Mises-Fisher distributions, and the analytical derivation of the MML estimates of the parameters of the two distributions.

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