Search Results for author: Dragi Kocev

Found 16 papers, 6 papers with code

FAIRification of MLC data

no code implementations23 Nov 2022 Ana Kostovska, Jasmin Bogatinovski, Andrej Treven, Sašo Džeroski, Dragi Kocev, Panče Panov

The multi-label classification (MLC) task has increasingly been receiving interest from the machine learning (ML) community, as evidenced by the growing number of papers and methods that appear in the literature.

Benchmarking Management +1

Explainable Model-specific Algorithm Selection for Multi-Label Classification

no code implementations21 Nov 2022 Ana Kostovska, Carola Doerr, Sašo Džeroski, Dragi Kocev, Panče Panov, Tome Eftimov

To address this algorithm selection problem, we investigate in this work the quality of an automated approach that uses characteristics of the datasets - so-called features - and a trained algorithm selector to choose which algorithm to apply for a given task.

Classification Multi-Label Classification

Discover the Mysteries of the Maya: Selected Contributions from the Machine Learning Challenge & The Discovery Challenge Workshop at ECML PKDD 2021

no code implementations5 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).

BIG-bench Machine Learning Image Segmentation +1

Semi-supervised Predictive Clustering Trees for (Hierarchical) Multi-label Classification

no code implementations19 Jul 2022 Jurica Levatić, Michelangelo Ceci, Dragi Kocev, Sašo Džeroski

Semi-supervised learning (SSL) is a common approach to learning predictive models using not only labeled examples, but also unlabeled examples.

Classification Clustering +3

Current Trends in Deep Learning for Earth Observation: An Open-source Benchmark Arena for Image Classification

2 code implementations14 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).

Classification Earth Observation +4

AiTLAS: Artificial Intelligence Toolbox for Earth Observation

1 code implementation21 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.

Benchmarking Earth Observation +2

Comprehensive Comparative Study of Multi-Label Classification Methods

no code implementations14 Feb 2021 Jasmin Bogatinovski, Ljupčo Todorovski, Sašo Džeroski, Dragi Kocev

Several studies provide reviews of methods and datasets for MLC and a few provide empirical comparisons of MLC methods.

Classification General Classification +1

Ensemble- and Distance-Based Feature Ranking for Unsupervised Learning

1 code implementation23 Nov 2020 Matej Petković, Dragi Kocev, Blaž Škrlj, Sašo Džeroski

In this work, we propose two novel (groups of) methods for unsupervised feature ranking and selection.

Clustering

Feature Ranking for Semi-supervised Learning

no code implementations10 Aug 2020 Matej Petković, Sašo Džeroski, Dragi Kocev

This poses a variety of challenges for the existing machine learning methods: coping with dataset with a large number of examples that are described in a high-dimensional space and not all examples have labels provided.

Classification General Classification +3

Fuzzy Jaccard Index: A robust comparison of ordered lists

2 code implementations5 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.

BIG-bench Machine Learning

Oblique Predictive Clustering Trees

1 code implementation27 Jul 2020 Tomaž Stepišnik, Dragi Kocev

Also, learning of PCTs can not exploit the sparsity of data to improve the computational efficiency, which is common in both input (molecular fingerprints, bag of words representations) and output spaces (in multi-label classification, examples are often labeled with only a fraction of possible labels).

Clustering Computational Efficiency +2

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