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About me
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My doctoral research focused on the robustness of NLG evaluation models and on methods that quantify and communicate the uncertainty of their outputs. In particular, I worked on uncertainty-aware MT evaluation, aiming for trustworthy systems that are robust to the variation observed across different languages and domains. I co-authored widely used COMET variants (COMET-22, CometKiwi), with 1000+ citations on the corresponding EMNLP/WMT publications.
After the PhD I moved to the applied side. I worked on adapting LLMs for low-resource language pairs, and currently I'm building my own AI products end-to-end (such as Chess Baby Steps) and evaluating LLM-based systems in production.
Before joining IST, I received a MSc and BSc in Computer Science at CS HSE in Moscow, Russia.
When not at my computer, I enjoy playing chess!
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Chess Baby Steps
Founder & Engineer; 2026 - present
chessbabysteps.com
An AI-powered chess trainer that turns your losses into personalized practice: it pinpoints your losing patterns and generates custom puzzles, opening curricula, and tactical drills from positions you misplayed in your own games. Built end-to-end solo (LLMs + Stockfish, full-stack web app), and developed in the open with a strong feedback loop from my TikTok community.
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News
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• March 2026: Launched Chess Baby Steps, an AI-powered chess trainer that turns your losses into personalized practice.
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• June 2024: Defended my PhD thesis with distinction at Instituto Superior Técnico!
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• June 2023: Our work is presented at EAMT in Tampere, Finland.
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• Apr 2023: "BLEU Meets COMET: Combining Lexical and Neural Metrics Towards Robust Machine Translation Evaluation" got accepted to EAMT 2023!
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• Dec 2022: Presenting a poster at EMNLP in Abu Dhabi, UAE.
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• Nov 2022: Participating in a poster session at CMU Portugal 2022 Summit.
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• Oct 2022: "Disentangling Uncertainty in Machine Translation Evaluation" got accepted to EMNLP 2022!
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• June 2022: Research Summer Internship at CMU within the scope of the MAIA project!
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• Nov 2021: Presenting at EMNLP WMT21 workshop in Punta Cana, Dominican Republic.
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• Aug 2021: "Uncertainty-Aware Machine Translation Evaluation" got accepted to EMNLP 2021!
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• Sep 2020: Starting my PhD at IST under the scope of a collaborative project MAIA (Multilingual AI Agent Assistants).
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• July 2019: Applied AI Research Summer Internship at Unbabel!
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BLEU Meets COMET: Combining Lexical and Neural Metrics Towards Robust Machine Translation Evaluation
Taisiya Glushkova,
Chrysoula Zerva,
André F. T. Martins
EAMT, Tampere, Finland; June 2023
[
ACL Anthology /
poster
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Disentangling Uncertainty in Machine Translation Evaluation
Chrysoula Zerva,
Taisiya Glushkova,
Ricardo Rei,
André F. T. Martins
EMNLP, Abu Dhabi, UAE; December 2022
[
ACL Anthology /
poster
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COMET-22: Unbabel-IST 2022 Submission for the Metrics Shared Task
Ricardo Rei,
José GC De Souza,
Duarte Alves,
Chrysoula Zerva,
Ana C Farinha,
Taisiya Glushkova,
Alon Lavie,
Luisa Coheur,
André F. T. Martins
EMNLP WMT, Abu Dhabi, UAE; December 2022
[
ACL Anthology /
poster
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CometKiwi: IST-Unbabel 2022 Submission for the Quality Estimation Shared Task
Ricardo Rei,
Marcos Treviso,
Nuno M. Guerreiro,
Chrysoula Zerva,
Ana C Farinha,
Christine Maroti,
José GC De Souza,
Taisiya Glushkova,
Duarte Alves,
Alon Lavie,
Luisa Coheur,
André F. T. Martins
EMNLP WMT, Abu Dhabi, UAE; December 2022
[
ACL Anthology
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Uncertainty-Aware Machine Translation Evaluation
Taisiya Glushkova,
Chrysoula Zerva,
Ricardo Rei,
André F. T. Martins
EMNLP Findings, Punta Cana, Dominican Republic; November 2021
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ACL Anthology /
slides
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IST-Unbabel 2021 Submission for the Quality Estimation Shared Task
Chrysoula Zerva,
Daan van Stigt,
Ricardo Rei,
Ana C Farinha,
Pedro G. Ramos,
José GC De Souza,
Taisiya Glushkova,
Miguel Vera,
Fabio Kepler,
André F. T. Martins
EMNLP WMT, Punta Cana, Dominican Republic; November 2021
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WMT21 /
poster
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Are References Really Needed? Unbabel-IST 2021 Submission for the Metrics Shared Task
Ricardo Rei,
Ana C Farinha,
Chrysoula Zerva,
Daan van Stigt,
Craig Stewart,
Pedro G. Ramos,
Taisiya Glushkova,
André F. T. Martins,
Alon Lavie
EMNLP WMT, Punta Cana, Dominican Republic; November 2021
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WMT21 /
poster
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Credits to Jon Barron for the template, thanks!
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