Tuning structure learning algorithms with out-of-sample and resampling strategies

K Chobtham, AC Constantinou - Knowledge and Information Systems, 2024 - Springer
One of the challenges practitioners face when applying structure learning algorithms to their
data involves determining a set of hyperparameters; otherwise, a set of hyperparameter …

[PDF][PDF] The Bayesys data and Bayesian network repository

AC Constantinou, Y Liu, K Chobtham… - … Mary University of …, 2020 - constantinou.info
THE BAYESYS DATA AND BAYESIAN NETWORK REPOSITORY IS DISTRIBUTED AND
LICENSED FREE OF CHARGE IN THE HOPE IT WILL BE USEFUL. BECAUSE OF THIS …

[HTML][HTML] Using GPT-4 to guide causal machine learning

AC Constantinou, NK Kitson, A Zanga - Expert Systems with Applications, 2024 - Elsevier
Since its introduction to the public, ChatGPT has had an unprecedented impact. While some
experts praised AI advancements and highlighted their potential risks, others have been …

Investigating the validity of structure learning algorithms in identifying risk factors for intervention in patients with diabetes

S Zahoor, AC Constantinou, TM Curtis… - arXiv preprint arXiv …, 2024 - arxiv.org
Diabetes, a pervasive and enduring health challenge, imposes significant global
implications on health, financial healthcare systems, and societal well-being. This study …

How much do we really know about Structure Learning from iid Data? Interpretable, multi-dimensional Performance Indicator for Causal Discovery

G Velev, S Lessmann - arXiv preprint arXiv:2409.19377, 2024 - arxiv.org
Nonlinear causal discovery from observational data imposes strict identifiability assumptions
on the formulation of structural equations utilized in the data generating process. The …

The impact of variable ordering on Bayesian Network Structure Learning

NK Kitson, AC Constantinou - Data Mining and Knowledge Discovery, 2024 - Springer
Abstract Causal Bayesian Networks (CBNs) provide an important tool for reasoning under
uncertainty with potential application to many complex causal systems. Structure learning …

Investigating potential causes of Sepsis with Bayesian network structure learning

B Petrungaro, NK Kitson, AC Constantinou - arXiv preprint arXiv …, 2024 - arxiv.org
Sepsis is a life-threatening and serious global health issue. This study combines knowledge
with available hospital data to investigate the potential causes of Sepsis that can be affected …

[PDF][PDF] Eliminating Variable Order Instability in Greedy Score-Based Structure Learning.

NK Kitson, AC Constantinou - International …, 2024 - raw.githubusercontent.com
Abstract Many Bayesian Network structure learning algorithms are unstable in that the learnt
graph is sensitive to arbitrary artefacts of the dataset, such as the ordering of columns (ie …

Explicit and implicit knowledge-enhanced model for event causality identification

S Chen, K Mao - Expert Systems with Applications, 2024 - Elsevier
Abstract Event Causality Identification (ECI) aims at detecting the causal relation between 2
events, which is a challenging task due to the complexity of causal expressions and the …

[PDF][PDF] The Bayesys user manual

A Constantinou - Queen Mary University of London, London, UK …, 2019 - constantinou.info
The Bayesys user manual Page 1 1 The Bayesys user manual Anthony C. Constantinoua, b
Version 3.61 (last revision: Jun 2024) a) Bayesian AI research lab, Machine Intelligence …