Search Results for author: Martin Neil

Found 11 papers, 0 papers with code

Stacking Factorizing Partitioned Expressions in Hybrid Bayesian Network Models

no code implementations23 Feb 2024 Peng Lin, Martin Neil, Norman Fenton

Normally, an effective way to reduce the CPD size is to use a binary factorization (BF) algorithm to decompose the statistical or arithmetic functions in the CPD by factorizing the number of connected parent nodes to sets of size two.

A hybrid Bayesian network for medical device risk assessment and management

no code implementations7 Sep 2022 Joshua Hunte, Martin Neil, Norman Fenton

Hence, medical device manufacturers are free to develop or use any appropriate methods for managing the risk of medical devices.

Management

Product safety idioms: a method for building causal Bayesian networks for product safety and risk assessment

no code implementations5 Jun 2022 Joshua Hunte, Martin Neil, Norman Fenton

Idioms are small, reusable Bayesian network (BN) fragments that represent generic types of uncertain reasoning.

Smart Automotive Technology Adherence to the Law: (De)Constructing Road Rules for Autonomous System Development, Verification and Safety

no code implementations7 Sep 2021 Scott McLachlan, Martin Neil, Kudakwashe Dube, Ronny Bogani, Norman Fenton, Burkhard Schaffer

We strongly believe these tools to be approachable by programmers and the general public, and capable of use in developing Artificial Intelligence to underpin motor vehicle smart systems, and in validation to ensure these systems are considerate of the law when making decisions.

Autonomous Driving

Bayesian hypothesis testing and hierarchical modelling of ivermectin effectiveness in treating Covid-19

no code implementations18 Aug 2021 Martin Neil, Norman Fenton

We show that there is strong evidence to support a causal link between ivermectin, Covid-19 severity and mortality, and: i) for severe Covid-19 there is a 90. 7% probability the risk ratio favours ivermectin; ii) for mild/moderate Covid-19 there is an 84. 1% probability the risk ratio favours ivermectin.

How do some Bayesian Network machine learned graphs compare to causal knowledge?

no code implementations25 Jan 2021 Anthony C. Constantinou, Norman Fenton, Martin Neil

Maximising score fitting is ineffective in the presence of limited sample size because the fitting becomes increasingly distorted with limited data, guiding algorithms towards graphical patterns that share higher fitting scores and yet deviate considerably from the true graph.

Model Selection

Product risk assessment: a Bayesian network approach

no code implementations9 Oct 2020 Joshua Hunte, Martin Neil, Norman Fenton

Product risk assessment is the overall process of determining whether a product, which could be anything from a type of washing machine to a type of teddy bear, is judged safe for consumers to use.

The role of collider bias in understanding statistics on racially biased policing

no code implementations16 Jul 2020 Norman Fenton, Martin Neil, Steven Frazier

Contradictory conclusions have been made about whether unarmed blacks are more likely to be shot by police than unarmed whites using the same data.

Simpson's Paradox and the implications for medical trials

no code implementations3 Dec 2019 Norman Fenton, Martin Neil, Anthony Constantinou

This paper describes Simpson's paradox, and explains its serious implications for randomised control trials.

valid

Region Based Approximation for High Dimensional Bayesian Network Models

no code implementations5 Feb 2016 Peng Lin, Martin Neil, Norman Fenton

Performing efficient inference on Bayesian Networks (BNs), with large numbers of densely connected variables is challenging.

Clustering Vocal Bursts Intensity Prediction

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