PhD Student in Statistical Machine Learning

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Pages

Posts

Blog Post number 4

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Blog Post number 3

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Blog Post number 2

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Blog Post number 1

less than 1 minute read

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awards

PhD Studentship

Published:

Studentship offered by the EPSRC for the Centre of Doctoral Training in Statistics and Machine Learning (StatML CDT)

Warner Prize

Published:

Prize awarded for best MSc Statistics research project at Imperial College London.

Maths PhD Symposium 2022 Award

Published:

Runner-up & People’s Choice Award at poster competition at Imperial College London’s annual Maths PhD Symposium (2022).

Maths PhD Symposium 2025 Award

Published:

People’s Choice Award at poster competition at Imperial College London’s annual Maths PhD Symposium (2025).

publications

Benchmarking distance-based partitioning methods for mixed-type data

Published in Advances in Data Analysis and Classification, 2023

Recommended citation: @article{costa2023benchmarking, title={Benchmarking distance-based partitioning methods for mixed-type data}, author={Costa, Efthymios and Papatsouma, Ioanna and Markos, Angelos}, journal={Advances in Data Analysis and Classification}, volume={17}, number={3}, pages={701--724}, year={2023}, publisher={Springer} }
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A novel framework for quantifying nominal outlyingness

Published in Under review, 2024

Recommended citation: @misc{costa2024nominalouts, title={A novel framework for quantifying nominal outlyingness}, author={Efthymios Costa and Ioanna Papatsouma}, year={2024}, eprint={2408.07463}, archivePrefix={arXiv}, primaryClass={stat.ME}, howpublished = {arXiv preprint}, url = {https://arxiv.org/abs/2408.07463}
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A Deterministic Information Bottleneck Method for Clustering Mixed-Type Data

Published in Under review, 2024

Recommended citation: @misc{costa2024dibmix, title={A Deterministic Information Bottleneck Method for Clustering Mixed-Type Data}, author={Costa, Efthymios and Papatsouma, Ioanna and Markos, Angelos}, year={2024}, eprint={2407.03389}, archivePrefix={arXiv}, primaryClass={stat.ME}, howpublished = {arXiv preprint}, url = {https://arxiv.org/abs/2407.03389}
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A Deterministic Information Bottleneck Method for Clustering Mixed-Type Data

Published in Data Science, Classification, and Artificial Intelligence for Modeling Decision Making (IFCS 2024), 2025

Recommended citation: @inproceedings{costa2024deterministic, title={A Deterministic Information Bottleneck Method for Clustering Mixed-Type Data}, author={Costa, Efthymios and Papatsouma, Ioanna and Markos, Angelos}, booktitle={Conference of the International Federation of Classification Societies}, pages={81--88}, year={2024}, organization={Springer} }
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talks

teaching

BSc/MSci Mathematics

Imperial College London, Department of Mathematics

  • Probability and Statistics (Year 1)
  • Probability for Statistics (Year 2)
  • Statistical Modelling I (Year 2)
  • Introduction to Statistical Learning (Years 3 & 4)
  • Mathematics of Business and Economics (Years 3 & 4)
  • Statistical Modelling II (Years 3 & 4)

MSc Statistics

Imperial College London, Department of Mathematics

  • Computational Statistics
  • Data Science
  • Machine Learning