1 code implementation • 20 Dec 2024 • Laura Wenderoth, Konstantin Hemker, Nikola Simidjievski, Mateja Jamnik
We show that InterSHAP accurately measures the presence of cross-modal interactions, can handle multiple modalities, and provides detailed explanations at a local level for individual samples.
1 code implementation • 27 Nov 2024 • Zak Buzzard, Konstantin Hemker, Nikola Simidjievski, Mateja Jamnik
Computational analysis of whole slide images (WSIs) has seen significant research progress in recent years, with applications ranging across important diagnostic and prognostic tasks such as survival or cancer subtype prediction.
1 code implementation • 24 Sep 2024 • Andrei Margeloiu, Xiangjian Jiang, Nikola Simidjievski, Mateja Jamnik
As a result, classification methods usually perform poorly with these small datasets, leading to weak predictive performance.
1 code implementation • 3 Jun 2024 • Andrei Margeloiu, Adrián Bazaga, Nikola Simidjievski, Pietro Liò, Mateja Jamnik
To overcome this challenge, we introduce TabMDA, a novel method for manifold data augmentation on tabular data.
no code implementations • 30 May 2024 • Konstantin Hemker, Nikola Simidjievski, Mateja Jamnik
Learning holistic computational representations in physical, chemical or biological systems requires the ability to process information from different distributions and modalities within the same model.
1 code implementation • 25 Nov 2023 • Jonas Jürß, Lucie Charlotte Magister, Pietro Barbiero, Pietro Liò, Nikola Simidjievski
A line of interpretable methods approach this by discovering a small set of relevant concepts as subgraphs in the last GNN layer that together explain the prediction.
1 code implementation • 15 Nov 2023 • Konstantin Hemker, Nikola Simidjievski, Mateja Jamnik
Technological advances in medical data collection, such as high-throughput genomic sequencing and digital high-resolution histopathology, have contributed to the rising requirement for multimodal biomedical modelling, specifically for image, tabular and graph data.
no code implementations • 4 Jul 2023 • Ivica Dimitrovski, Ivan Kitanovski, Nikola Simidjievski, Dragi Kocev
A common approach in practice to SSL pre-training is utilizing standard pre-training datasets, such as ImageNet.
1 code implementation • 1 Jul 2023 • Gabriele Dominici, Pietro Barbiero, Lucie Charlotte Magister, Pietro Liò, Nikola Simidjievski
Multimodal learning is an essential paradigm for addressing complex real-world problems, where individual data modalities are typically insufficient to accurately solve a given modelling task.
no code implementations • 27 Jun 2023 • Navindu Leelarathna, Andrei Margeloiu, Mateja Jamnik, Nikola Simidjievski
Variational Autoencoders and their many variants have displayed impressive ability to perform dimensionality reduction, often achieving state-of-the-art performance.
1 code implementation • 21 Jun 2023 • Xiangjian Jiang, Andrei Margeloiu, Nikola Simidjievski, Mateja Jamnik
Tabular biomedical data poses challenges in machine learning because it is often high-dimensional and typically low-sample-size (HDLSS).
1 code implementation • 28 Nov 2022 • Andrei Margeloiu, Nikola Simidjievski, Pietro Lio, Mateja Jamnik
Tabular biomedical data is often high-dimensional but with a very small number of samples.
1 code implementation • 11 Nov 2022 • Andrei Margeloiu, Nikola Simidjievski, Pietro Lio, Mateja Jamnik
We create a graph between samples for each data dimension, and utilise Graph Neural Networks (GNNs) to extract this implicit structure, and for conditioning the parameters of the first layer of an underlying predictor network.
no code implementations • 5 Aug 2022 • Dragi Kocev, Nikola Simidjievski, Ana Kostovska, Ivica Dimitrovski, Žiga Kokalj
The volume contains selected contributions from the Machine Learning Challenge "Discover the Mysteries of the Maya", presented at the Discovery Challenge Track of The European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD 2021).
2 code implementations • 14 Jul 2022 • Ivica Dimitrovski, Ivan Kitanovski, Dragi Kocev, Nikola Simidjievski
We present AiTLAS: Benchmark Arena -- an open-source benchmark suite for evaluating state-of-the-art deep learning approaches for image classification in Earth Observation (EO).
1 code implementation • 21 Jan 2022 • Ivica Dimitrovski, Ivan Kitanovski, Panče Panov, Nikola Simidjievski, Dragi Kocev
The AiTLAS toolbox (Artificial Intelligence Toolbox for Earth Observation) includes state-of-the-art machine learning methods for exploratory and predictive analysis of satellite imagery as well as repository of AI-ready Earth Observation (EO) datasets.
1 code implementation • 17 Dec 2021 • Jacob Deasy, Nikola Simidjievski, Pietro Liò
Score-based model research in the last few years has produced state of the art generative models by employing Gaussian denoising score-matching (DSM).
no code implementations • NeurIPS Workshop DLDE 2021 • Alexander Luke Ian Norcliffe, Cristian Bodnar, Ben Day, Nikola Simidjievski, Pietro Lio
In Norcliffe et al.[13], we discussed and systematically analysed how Neural ODEs (NODEs) can learn higher-order order dynamics.
no code implementations • 4 Aug 2021 • Matej Petković, Luke Lucas, Tomaž Stepišnik, Panče Panov, Nikola Simidjievski, Dragi Kocev
The Mars Express (MEX) spacecraft has been orbiting Mars since 2004.
no code implementations • 3 Aug 2021 • Ana Kostovska, Matej Petković, Tomaž Stepišnik, Luke Lucas, Timothy Finn, José Martínez-Heras, Panče Panov, Sašo Džeroski, Alessandro Donati, Nikola Simidjievski, Dragi Kocev
We present GalaxAI - a versatile machine learning toolbox for efficient and interpretable end-to-end analysis of spacecraft telemetry data.
1 code implementation • 9 Jun 2021 • Ben Day, Ramon Viñas, Nikola Simidjievski, Pietro Liò
Polythetic classifications, based on shared patterns of features that need neither be universal nor constant among members of a class, are common in the natural world and greatly outnumber monothetic classifications over a set of features.
no code implementations • ICML Workshop INNF 2021 • Jacob Deasy, Tom Andrew McIver, Nikola Simidjievski, Pietro Lio
The {\em skew-geometric Jensen-Shannon divergence} $\left(\textrm{JS}^{\textrm{G}_{\alpha}}\right)$ allows for an intuitive interpolation between forward and reverse Kullback-Leibler (KL) divergence based on the skew parameter $\alpha$.
1 code implementation • 2 Dec 2020 • Andrei Margeloiu, Nikola Simidjievski, Mateja Jamnik, Adrian Weller
We investigate the influence of adversarial training on the interpretability of convolutional neural networks (CNNs), specifically applied to diagnosing skin cancer.
no code implementations • 22 Nov 2020 • Maja Trębacz, Zohreh Shams, Mateja Jamnik, Paul Scherer, Nikola Simidjievski, Helena Andres Terre, Pietro Liò
Stratifying cancer patients based on their gene expression levels allows improving diagnosis, survival analysis and treatment planning.
no code implementations • 29 Sep 2020 • Paul Scherer, Maja Trȩbacz, Nikola Simidjievski, Zohreh Shams, Helena Andres Terre, Pietro Liò, Mateja Jamnik
We propose a method for gene expression based analysis of cancer phenotypes incorporating network biology knowledge through unsupervised construction of computational graphs.
2 code implementations • 5 Aug 2020 • Matej Petković, Blaž Škrlj, Dragi Kocev, Nikola Simidjievski
In real-life, and in particular high-dimensional domains, where only a small percentage of the whole feature space might be relevant, a robust and confident feature ranking leads to interpretable findings as well as efficient computation and good predictive performance.
1 code implementation • NeurIPS 2020 • Jacob Deasy, Nikola Simidjievski, Pietro Liò
We examine the problem of controlling divergences for latent space regularisation in variational autoencoders.
1 code implementation • NeurIPS 2020 • Alexander Norcliffe, Cristian Bodnar, Ben Day, Nikola Simidjievski, Pietro Liò
Neural Ordinary Differential Equations (NODEs) are a new class of models that transform data continuously through infinite-depth architectures.
Ranked #22 on Image Classification on MNIST
no code implementations • 1 Jul 2019 • Nikola Simidjievski, Ljupčo Todorovski, Juš Kocijan, Sašo Džeroski
In this paper, recent developments of the equation discovery method called process-based modeling, suited for nonlinear system identification, are elaborated and illustrated on two continuous-time case studies.
1 code implementation • 3 Sep 2018 • Matej Petković, Redouane Boumghar, Martin Breskvar, Sašo Džeroski, Dragi Kocev, Jurica Levatić, Luke Lucas, Aljaž Osojnik, Bernard Ženko, Nikola Simidjievski
The thermal subsystem of the Mars Express (MEX) spacecraft keeps the on-board equipment within its pre-defined operating temperatures range.