no code implementations • 24 Jun 2023 • Kiattikun Chobtham, Anthony C. Constantinou
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 defaults is assumed.
no code implementations • 5 May 2023 • Anthony Constantinou, Neville K. Kitson, Yang Liu, Kiattikun Chobtham, Arian Hashemzadeh, Praharsh A. Nanavati, Rendani Mbuvha, Bruno Petrungaro
Causal machine learning (ML) algorithms recover graphical structures that tell us something about cause-and-effect relationships.
no code implementations • 11 Jun 2022 • Kiattikun Chobtham, Anthony C. Constantinou
Discovering and parameterising latent confounders represent important and challenging problems in causal structure learning and density estimation respectively.
no code implementations • 20 Dec 2021 • Kiattikun Chobtham, Anthony C. Constantinou, Neville K. Kitson
The algorithm assumes causal insufficiency in the presence of latent variables and produces a Partial Ancestral Graph (PAG).
no code implementations • 1 Dec 2021 • Anthony C. Constantinou, Yang Liu, Neville K. Kitson, Kiattikun Chobtham, Zhigao Guo
Learning the structure of a Bayesian Network (BN) with score-based solutions involves exploring the search space of possible graphs and moving towards the graph that maximises a given objective function.
no code implementations • 23 Sep 2021 • Neville K. Kitson, Anthony C. Constantinou, Zhigao Guo, Yang Liu, Kiattikun Chobtham
This paper provides a comprehensive review of combinatoric algorithms proposed for learning BN structure from data, describing 74 algorithms including prototypical, well-established and state-of-the-art approaches.
no code implementations • 29 May 2020 • Kiattikun Chobtham, Anthony C. Constantinou
Structure learning algorithms that assume causal insufficiency tend to reconstruct the ancestral graph of a BN, where bi-directed edges represent confounding and directed edges represent direct or ancestral relationships.
no code implementations • 18 May 2020 • Anthony C. Constantinou, Yang Liu, Kiattikun Chobtham, Zhigao Guo, Neville K. Kitson
This paper investigates the performance of 15 structure learning algorithms.