Search Results for author: Katarzyna Musial

Found 19 papers, 8 papers with code

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.

Inferring Actual Treatment Pathways from Patient Records

1 code implementation5 Sep 2023 Adrian Wilkins-Caruana, Madhushi Bandara, Katarzyna Musial, Daniel Catchpoole, Paul J. Kennedy

This study aims to infer the actual treatment steps for a particular patient group from administrative health records (AHR) - a common form of tabular healthcare data - and address several technique- and methodology-based gaps in treatment pathway-inference research.

Self-Supervised Learning

Machine Learning for Administrative Health Records: A Systematic Review of Techniques and Applications

no code implementations27 Aug 2023 Adrian Caruana, Madhushi Bandara, Katarzyna Musial, Daniel Catchpoole, Paul J. Kennedy

We identify and analyse which machine learning techniques are applied to AHRs and which health informatics applications are pursued in AHR-based research.

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.

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.

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

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.

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

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+

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

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

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

A Block-based Generative Model for Attributed Networks Embedding

no code implementations6 Jan 2020 Xueyan Liu, Bo Yang, Wenzhuo Song, Katarzyna Musial, Wanli Zuo, Hongxu Chen, Hongzhi Yin

To preserve the attribute information, we assume that each node has a hidden embedding related to its assigned block.

Attribute Clustering +1

Sub-query Fragmentation for Query Analysis and Data Caching in the Distributed Environment

no code implementations11 Oct 2019 Santhilata Kuppili Venkata, Katarzyna Musial

When data stores and users are distributed geographically, it is essential to organize distributed data cache points at ideal locations to minimize data transfers.

Simulation and Augmentation of Social Networks for Building Deep Learning Models

1 code implementation22 May 2019 Akanda Wahid -Ul- Ashraf, Marcin Budka, Katarzyna Musial

Also, the majority of the available social network datasets do not contain both the features and ground truth labels.

Knowledge Graphs

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