Search Results for author: Andrew Lensen

Found 12 papers, 2 papers with code

Genetic Programming for Explainable Manifold Learning

1 code implementation21 Mar 2024 Ben Cravens, Andrew Lensen, Paula Maddigan, Bing Xue

Our experimental analysis demonstrates that GP-EMaL is able to match the performance of the existing approach in most cases, while using simpler, smaller, and more interpretable tree structures.

Explaining Genetic Programming Trees using Large Language Models

no code implementations6 Mar 2024 Paula Maddigan, Andrew Lensen, Bing Xue

In this research, we investigate the potential of leveraging eXplainable AI (XAI) and large language models (LLMs) like ChatGPT to improve the interpretability of GP-based non-linear dimensionality reduction.

Chatbot Dimensionality Reduction +1

Differentiable Genetic Programming for High-dimensional Symbolic Regression

no code implementations18 Apr 2023 Peng Zeng, Xiaotian Song, Andrew Lensen, Yuwei Ou, Yanan sun, Mengjie Zhang, Jiancheng Lv

With these designs, the proposed DGP method can efficiently search for the GP trees with higher performance, thus being capable of dealing with high-dimensional SR. To demonstrate the effectiveness of DGP, we conducted various experiments against the state of the arts based on both GP and deep neural networks.

Interpretable Machine Learning regression +2

Feature-based Image Matching for Identifying Individual Kākā

no code implementations17 Jan 2023 Fintan O'Sullivan, Kirita-Rose Escott, Rachael C. Shaw, Andrew Lensen

Applied with a similarity network for clustering, this addresses a weakness of current supervised approaches to identifying individual birds which struggle to handle the introduction of new individuals to the population.

Explainable Artificial Intelligence for Assault Sentence Prediction in New Zealand

no code implementations15 Aug 2022 Harry Rodger, Andrew Lensen, Marcin Betkier

The judiciary has historically been conservative in its use of Artificial Intelligence, but recent advances in machine learning have prompted scholars to reconsider such use in tasks like sentence prediction.

Explainable artificial intelligence Sentence

Genetic Programming for Manifold Learning: Preserving Local Topology

no code implementations23 Aug 2021 Andrew Lensen, Bing Xue, Mengjie Zhang

Recently, genetic programming has emerged as a very promising approach to manifold learning by evolving functional mappings from the original space to an embedding.

Mining Feature Relationships in Data

no code implementations2 Feb 2021 Andrew Lensen

To the best of our knowledge, our proposed approach is the first such symbolic approach with the goal of explicitly discovering relationships between features.

Genetic Programming for Evolving a Front of Interpretable Models for Data Visualisation

1 code implementation27 Jan 2020 Andrew Lensen, Bing Xue, Mengjie Zhang

Many domains require an understanding of the data in terms of the original features; there is hence a need for powerful visualisation methods which use understandable models.

Multi-Objective Genetic Programming for Manifold Learning: Balancing Quality and Dimensionality

no code implementations5 Jan 2020 Andrew Lensen, Mengjie Zhang, Bing Xue

This method required the dimensionality of the embedding to be known a priori, which makes it hard to use when little is known about a dataset.

Genetic Programming for Evolving Similarity Functions for Clustering: Representations and Analysis

no code implementations22 Oct 2019 Andrew Lensen, Bing Xue, Mengjie Zhang

In this paper, we propose a new approach to automatically evolving similarity functions for a given clustering algorithm by using genetic programming.

Clustering feature selection

Can Genetic Programming Do Manifold Learning Too?

no code implementations8 Feb 2019 Andrew Lensen, Bing Xue, Mengjie Zhang

Exploratory data analysis is a fundamental aspect of knowledge discovery that aims to find the main characteristics of a dataset.

Dimensionality Reduction

Generating Redundant Features with Unsupervised Multi-Tree Genetic Programming

no code implementations2 Feb 2018 Andrew Lensen, Bing Xue, Mengjie Zhang

Recently, feature selection has become an increasingly important area of research due to the surge in high-dimensional datasets in all areas of modern life.

feature selection

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