no code implementations • 7 Nov 2024 • Seyed Mahdi Shavarani, Mahmoud Golabi, Richard Allmendinger, Lhassane Idoumghar
However, much of the existing literature fails to account for the dynamic nature of DM preferences, which can evolve throughout the decision-making process and affect the relevance of objectives.
no code implementations • 4 Oct 2024 • Marcos Negre Saura, Richard Allmendinger, Theodore Papamarkou, Wei Pan
The application of ring attractors in the RL action selection process involves mapping actions to specific locations on the ring and decoding the selected action based on neural activity.
1 code implementation • 27 Sep 2024 • Nian Ran, Peng Xiao, Yue Wang, Wesley Shi, Jianxin Lin, Qi Meng, Richard Allmendinger
The application of large deep learning models in weather forecasting has led to significant advancements in the field, including higher-resolution forecasting and extended prediction periods exemplified by models such as Pangu and Fuxi.
no code implementations • 14 May 2024 • Stefan Pricopie, Richard Allmendinger, Manuel Lopez-Ibanez, Clyde Fare, Matt Benatan, Joshua Knowles
We investigate modifications to Bayesian Optimization for a resource-constrained setting of sequential experimental design where changes to certain design variables of the search space incur a switching cost.
1 code implementation • 15 Apr 2024 • Nian Ran, Bahrul Ilmi Nasution, Claire Little, Richard Allmendinger, Mark Elliot
However, there are unique challenges in tabular data compared to images, eg tabular data may contain both continuous and discrete variables and conditional sampling, and, critically, the data should possess high utility and low disclosure risk (the risk of re-identifying a population unit or learning something new about them), providing an opportunity for multi-objective (MO) optimization.
no code implementations • 19 Oct 2023 • Danny Wood, Theodore Papamarkou, Matt Benatan, Richard Allmendinger
In particular, by adapting permutation feature importance, partial dependence plots, and individual conditional expectation plots, we demonstrate that novel insights into model behaviour may be obtained and that these methods can be used to measure the impact of features on both the entropy of the predictive distribution and the log-likelihood of the ground truth labels under that distribution.
no code implementations • 24 May 2023 • Diederick Vermetten, Manuel López-Ibáñez, Olaf Mersmann, Richard Allmendinger, Anna V. Kononova
Specifically, we want to understand the performance difference between BBOB and SBOX-COST as a function of two initialization methods and six constraint-handling strategies all tested with modular CMA-ES.
no code implementations • 19 May 2023 • Mayowa Ayodele, Richard Allmendinger, Manuel López-Ibáñez, Arnaud Liefooghe, Matthieu Parizy
In this work, we extend the adaptive method based on averages in two ways: (i)~we extend the adaptive method of deriving scalarisation weights for problems with two or more objectives, and (ii)~we use an alternative measure of distance to improve performance.
no code implementations • 20 Oct 2022 • Mayowa Ayodele, Richard Allmendinger, Manuel López-Ibáñez, Matthieu Parizy
These solvers are then applied to QUBO formulations of combinatorial optimisation problems.
1 code implementation • 2 Jul 2022 • Claire Little, Mark Elliot, Richard Allmendinger
The paper presents a framework to measure the utility and disclosure risk of synthetic data by comparing it to samples of the original data of varying sample fractions, thereby identifying the sample fraction which has equivalent utility and risk to the synthetic data.
no code implementations • 28 Jun 2022 • Eyyub Can Odacioglu, Lihong Zhang, Richard Allmendinger
This paper proposes an Artificial Intelligence (AI) Grounded Theory for management studies.
no code implementations • 28 Jun 2022 • Chin Woei Lim, Richard Allmendinger, Joshua Knowles, Ayesha Alhosani, Mercedes Bleda
We use a multi-agent system to model how agents (representing firms) may collaborate and adapt in a business 'landscape' where some, more influential, firms are given the power to shape the landscape of other firms.
1 code implementation • 15 Jun 2022 • Alma Rahat, Tinkle Chugh, Jonathan Fieldsend, Richard Allmendinger, Kaisa Miettinen
Using the predictive densities, we can compute the expected hypervolume improvement (EHVI) due to a solution.
no code implementations • 26 May 2022 • Mayowa Ayodele, Richard Allmendinger, Manuel López-Ibáñez, Matthieu Parizy
We present the first attempt to extend the algorithm supporting a commercial QUBO solver as a multi-objective solver that is not based on scalarisation.
no code implementations • 4 Apr 2022 • Samantha Petersone, Alwin Tan, Richard Allmendinger, Sujit Roy, James Hales
The core activity of a Private Equity (PE) firm is to invest into companies in order to provide the investors with profit, usually within 4-7 years.
Explainable artificial intelligence Explainable Artificial Intelligence (XAI)
no code implementations • 24 Mar 2022 • Youngmin Kim, Richard Allmendinger, Manuel López-Ibáñez
We consider a type of constrained optimization problem, where the violation of a constraint leads to an irrevocable loss, such as breakage of a valuable experimental resource/platform or loss of human life.
1 code implementation • 24 Feb 2022 • Tasos Asonitis, Richard Allmendinger, Matt Benatan, Ricardo Climent
The benefits of data sonification have been shown for various non-optimization related monitoring tasks.
no code implementations • 3 Dec 2021 • Claire Little, Mark Elliot, Richard Allmendinger, Sahel Shariati Samani
Generative Adversarial Networks (GANs) are gaining increasing attention as a means for synthesising data.
no code implementations • 1 Jul 2021 • Chimdimma Noelyn Onah, Richard Allmendinger, Julia Handl, Ken W. Dunn
To improve homogeneity in resource usage and severity, we propose a data-driven model and the inclusion of patient-level costing.
no code implementations • 6 Jun 2021 • Richard Allmendinger, Andrzej Jaszkiewicz, Arnaud Liefooghe, Christiane Tammer
The presence of many objectives typically introduces a number of challenges that affect the choice/design of optimization algorithms.
no code implementations • 21 May 2021 • Andreea Avramescu, Richard Allmendinger, Manuel López-Ibáñez
To accelerate technology adoption in this domain, we characterize pertinent practical challenges in a PM supply chain and then capture them in a holistic mathematical model ready for optimisation.
no code implementations • 26 Feb 2021 • Richard Allmendinger, Joshua Knowles
Multiobjective optimization problems with heterogeneous objectives are defined as those that possess significantly different types of objective function components (not just incommensurable in units or scale).
2 code implementations • 13 Feb 2021 • Cameron Shand, Richard Allmendinger, Julia Handl, Andrew Webb, John Keane
Here, we argue that synthetic datasets must continue to play an important role in the evaluation of clustering algorithms, but that this necessitates constructing benchmarks that appropriately cover the diverse set of properties that impact clustering algorithm performance.
no code implementations • 23 Jan 2021 • Youngmin Kim, Richard Allmendinger, Manuel López-Ibáñez
Safe learning and optimization deals with learning and optimization problems that avoid, as much as possible, the evaluation of non-safe input points, which are solutions, policies, or strategies that cause an irrecoverable loss (e. g., breakage of a machine or equipment, or life threat).