Search Results for author: Bogdan Gabrys

Found 34 papers, 12 papers with code

Applications of Machine Learning in Biopharmaceutical Process Development and Manufacturing: Current Trends, Challenges, and Opportunities

no code implementations16 Oct 2023 Thanh Tung Khuat, Robert Bassett, Ellen Otte, Alistair Grevis-James, Bogdan Gabrys

While machine learning (ML) has made significant contributions to the biopharmaceutical field, its applications are still in the early stages in terms of providing direct support for quality-by-design based development and manufacturing of biopharmaceuticals, hindering the enormous potential for bioprocesses automation from their development to manufacturing.

Heterogeneous Feature Representation for Digital Twin-Oriented Complex Networked Systems

no code implementations23 Sep 2023 Jiaqi Wen, Bogdan Gabrys, Katarzyna Musial

This study aims to improve the expressive power of node features in Digital Twin-Oriented Complex Networked Systems (DT-CNSs) with heterogeneous feature representation principles.

Digital Twin-Oriented Complex Networked Systems based on Heterogeneous Node Features and Interaction Rules

no code implementations18 Aug 2023 Jiaqi Wen, Bogdan Gabrys, Katarzyna Musial

This study proposes an extendable modelling framework for Digital Twin-Oriented Complex Networked Systems (DT-CNSs) with a goal of generating networks that faithfully represent real systems.

Harnessing Data Augmentation to Quantify Uncertainty in the Early Estimation of Single-Photon Source Quality

no code implementations22 Jun 2023 David Jacob Kedziora, Anna Musiał, Wojciech Rudno-Rudziński, Bogdan Gabrys

Novel methods for rapidly estimating single-photon source (SPS) quality have been promoted in recent literature to address the expensive and time-consuming nature of experimental validation via intensity interferometry.

Data Augmentation

A Network Science perspective of Graph Convolutional Networks: A survey

no code implementations12 Jan 2023 Mingshan Jia, Bogdan Gabrys, Katarzyna Musial

The mining and exploitation of graph structural information have been the focal points in the study of complex networks.

hyperbox-brain: A Toolbox for Hyperbox-based Machine Learning Algorithms

1 code implementation6 Oct 2022 Thanh Tung Khuat, Bogdan Gabrys

hyperbox-brain is an open-source Python library implementing the leading hyperbox-based machine learning algorithms.

On Taking Advantage of Opportunistic Meta-knowledge to Reduce Configuration Spaces for Automated Machine Learning

1 code implementation8 Aug 2022 David Jacob Kedziora, Tien-Dung Nguyen, Katarzyna Musial, Bogdan Gabrys

The automated machine learning (AutoML) process can require searching through complex configuration spaces of not only machine learning (ML) components and their hyperparameters but also ways of composing them together, i. e. forming ML pipelines.

AutoML Meta-Learning +1

The Roles and Modes of Human Interactions with Automated Machine Learning Systems

no code implementations9 May 2022 Thanh Tung Khuat, David Jacob Kedziora, Bogdan Gabrys

As automated machine learning (AutoML) systems continue to progress in both sophistication and performance, it becomes important to understand the `how' and `why' of human-computer interaction (HCI) within these frameworks, both current and expected.

AutoML BIG-bench Machine Learning +1

Towards Digital Twin Oriented Modelling of Complex Networked Systems and Their Dynamics: A Comprehensive Survey

no code implementations15 Feb 2022 Jiaqi Wen, Bogdan Gabrys, Katarzyna Musial

This paper aims to provide a comprehensive critical overview on how entities and their interactions in Complex Networked Systems (CNS) are modelled across disciplines as they approach their ultimate goal of creating a Digital Twin (DT) that perfectly matches the reality.

Benchmarking Graph Neural Networks on Dynamic Link Prediction

1 code implementation29 Sep 2021 Joakim Skarding, Matthew Hellmich, Bogdan Gabrys, Katarzyna Musial-Gabrys

We compare link prediction heuristics, GNNs, discrete DGNNs, and continuous DGNNs on dynamic link prediction.

Benchmarking Dynamic Link Prediction

On-the-fly learning of adaptive strategies with bandit algorithms

no code implementations ICML Workshop AutoML 2021 Rashid Bakirov, Damien Fay, Bogdan Gabrys

In this work, we propose using multi-armed bandit algorithms for learning adaptive strategies from incrementally streaming data on-the-fly.

Model Selection

Exploring Opportunistic Meta-knowledge to Reduce Search Spaces for Automated Machine Learning

2 code implementations1 May 2021 Tien-Dung Nguyen, David Jacob Kedziora, Katarzyna Musial, Bogdan Gabrys

Machine learning (ML) pipeline composition and optimisation have been studied to seek multi-stage ML models, i. e. preprocessor-inclusive, that are both valid and well-performing.

BIG-bench Machine Learning valid

Application of Machine Learning to Performance Assessment for a class of PID-based Control Systems

no code implementations8 Jan 2021 Patryk Grelewicz, Thanh Tung Khuat, Jacek Czeczot, Pawel Nowak, Tomasz Klopot, Bogdan Gabrys

In this paper, a novel machine learning derived control performance assessment (CPA) classification system is proposed.

AutonoML: Towards an Integrated Framework for Autonomous Machine Learning

2 code implementations23 Dec 2020 David Jacob Kedziora, Katarzyna Musial, Bogdan Gabrys

Over the last decade, the long-running endeavour to automate high-level processes in machine learning (ML) has risen to mainstream prominence, stimulated by advances in optimisation techniques and their impact on selecting ML models/algorithms.

Automated Feature Engineering BIG-bench Machine Learning +3

AutoWeka4MCPS-AVATAR: Accelerating Automated Machine Learning Pipeline Composition and Optimisation

1 code implementation21 Nov 2020 Tien-Dung Nguyen, Bogdan Gabrys, Katarzyna Musial

Instead of executing the original ML pipeline to evaluate its validity, the AVATAR evaluates its surrogate model constructed by capabilities and effects of the ML pipeline components and input/output simplified mappings.

BIG-bench Machine Learning SMAC+

An Online Learning Algorithm for a Neuro-Fuzzy Classifier with Mixed-Attribute Data

1 code implementation30 Sep 2020 Thanh Tung Khuat, Bogdan Gabrys

However, one of the downsides of its original learning algorithms is the inability to handle and learn from the mixed-attribute data.

Attribute

An in-depth comparison of methods handling mixed-attribute data for general fuzzy min-max neural network

no code implementations1 Sep 2020 Thanh Tung Khuat, Bogdan Gabrys

A general fuzzy min-max (GFMM) neural network is one of the efficient neuro-fuzzy systems for classification problems.

Attribute Classification +1

NATS-Bench: Benchmarking NAS Algorithms for Architecture Topology and Size

2 code implementations28 Aug 2020 Xuanyi Dong, Lu Liu, Katarzyna Musial, Bogdan Gabrys

In this paper, we propose NATS-Bench, a unified benchmark on searching for both topology and size, for (almost) any up-to-date NAS algorithm.

Benchmarking Neural Architecture Search

A Review of Meta-level Learning in the Context of Multi-component, Multi-level Evolving Prediction Systems

no code implementations17 Jul 2020 Abbas Raza Ali, Marcin Budka, Bogdan Gabrys

The exponential growth of volume, variety and velocity of data is raising the need for investigations of automated or semi-automated ways to extract useful patterns from the data.

Meta-Learning

AutoHAS: Efficient Hyperparameter and Architecture Search

no code implementations5 Jun 2020 Xuanyi Dong, Mingxing Tan, Adams Wei Yu, Daiyi Peng, Bogdan Gabrys, Quoc V. Le

Efficient hyperparameter or architecture search methods have shown remarkable results, but each of them is only applicable to searching for either hyperparameters (HPs) or architectures.

Hyperparameter Optimization Neural Architecture Search +1

Multi-level Graph Convolutional Networks for Cross-platform Anchor Link Prediction

no code implementations2 Jun 2020 Hongxu Chen, Hongzhi Yin, Xiangguo Sun, Tong Chen, Bogdan Gabrys, Katarzyna Musial

Moreover, to adapt the proposed method to be capable of handling large-scale social networks, we propose a two-phase space reconciliation mechanism to align the embedding spaces in both network partitioning based parallel training and account matching across different social networks.

Anchor link prediction Model Selection

Random Hyperboxes

no code implementations1 Jun 2020 Thanh Tung Khuat, Bogdan Gabrys

This paper proposes a simple yet powerful ensemble classifier, called Random Hyperboxes, constructed from individual hyperbox-based classifiers trained on the random subsets of sample and feature spaces of the training set.

Accelerated learning algorithms of general fuzzy min-max neural network using a novel hyperbox selection rule

no code implementations25 Mar 2020 Thanh Tung Khuat, Bogdan Gabrys

Our proposed approach is based on the mathematical formulas to form a branch-and-bound solution aiming to remove the hyperboxes which are certain not to satisfy expansion or aggregation conditions, and in turn, decreasing the training time of learning algorithms.

AVATAR -- Machine Learning Pipeline Evaluation Using Surrogate Model

no code implementations30 Jan 2020 Tien-Dung Nguyen, Tomasz Maszczyk, Katarzyna Musial, Marc-Andre Zöller, Bogdan Gabrys

The evaluation of machine learning (ML) pipelines is essential during automatic ML pipeline composition and optimisation.

BIG-bench Machine Learning

An improved online learning algorithm for general fuzzy min-max neural network

no code implementations8 Jan 2020 Thanh Tung Khuat, Fang Chen, Bogdan Gabrys

This paper proposes an improved version of the current online learning algorithm for a general fuzzy min-max neural network (GFMM) to tackle existing issues concerning expansion and contraction steps as well as the way of dealing with unseen data located on decision boundaries.

General Classification

A comparative study of general fuzzy min-max neural networks for pattern classification problems

1 code implementation31 Jul 2019 Thanh Tung Khuat, Bogdan Gabrys

General fuzzy min-max (GFMM) neural network is a generalization of fuzzy neural networks formed by hyperbox fuzzy sets for classification and clustering problems.

BIG-bench Machine Learning Clustering +2

An Effective Multi-Resolution Hierarchical Granular Representation based Classifier using General Fuzzy Min-Max Neural Network

1 code implementation29 May 2019 Thanh Tung Khuat, Fang Chen, Bogdan Gabrys

Motivated by the practical demands for simplification of data towards being consistent with human thinking and problem solving as well as tolerance of uncertainty, information granules are becoming important entities in data processing at different levels of data abstraction.

Hyperbox based machine learning algorithms: A comprehensive survey

no code implementations31 Jan 2019 Thanh Tung Khuat, Dymitr Ruta, Bogdan Gabrys

With the rapid development of digital information, the data volume generated by humans and machines is growing exponentially.

BIG-bench Machine Learning

Automated Adaptation Strategies for Stream Learning

1 code implementation27 Dec 2018 Rashid Bakirov, Bogdan Gabrys, Damien Fay

Automation of machine learning model development is increasingly becoming an established research area.

Model Selection

Automatic Composition and Optimization of Multicomponent Predictive Systems With an Extended Auto-WEKA

no code implementations28 Dec 2016 Manuel Martin Salvador, Marcin Budka, Bogdan Gabrys

In a range of extensive experiments, three different optimization strategies are used to automatically compose MCPSs for 21 publicly available data sets.

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