Search Results for author: Andrei Margeloiu

Found 6 papers, 2 papers with code

Enhancing Representation Learning on High-Dimensional, Small-Size Tabular Data: A Divide and Conquer Method with Ensembled VAEs

no code implementations27 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.

Data Augmentation Dimensionality Reduction +1

ProtoGate: Prototype-based Neural Networks with Local Feature Selection for Tabular Biomedical Data

no code implementations21 Jun 2023 Xiangjian Jiang, Andrei Margeloiu, Nikola Simidjievski, Mateja Jamnik

In this paper, we propose ProtoGate, a prototype-based neural model that introduces an inductive bias by attending to both homogeneity and heterogeneity across samples.

feature selection Inductive Bias

GCondNet: A Novel Method for Improving Neural Networks on Small High-Dimensional Tabular Data

no code implementations11 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) for extracting this implicit structure, and for conditioning the parameters of the first layer of an underlying predictor network.

Vocal Bursts Intensity Prediction

Do Concept Bottleneck Models Learn as Intended?

no code implementations10 May 2021 Andrei Margeloiu, Matthew Ashman, Umang Bhatt, Yanzhi Chen, Mateja Jamnik, Adrian Weller

Concept bottleneck models map from raw inputs to concepts, and then from concepts to targets.

Improving Interpretability in Medical Imaging Diagnosis using Adversarial Training

1 code implementation2 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.

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