Alexandros Zeakis
Scientific Associate / PhD Candidate
About Me
- Full Name:Alexandros Zeakis
- Email:alzeakis at gmail.com
Hello There!
I am a Scientific Associate at IMSI, Athena Research Center and a PhD Candidate at National Kapodistrian University of Athens (NKUA). I hold a BSc in Informatics from NKUA and an MSc in Data Science from Athens University of Economics and Business (AUEB). My research interests primarily focus on Similarity Search and Entity Resolution. During my PhD I have published research papers in high-esteemed conferences (VLDB) and have worked in EU-funded projects (SmartDataLake, STELAR).
In my spare time, I am passionate about folk dances and improvisation theater.
My Resume
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Work Experience
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Scientific Associate
"Athena" Research and Innovation Center - May 2019 - CurrentResearch on Entity Resolution for relational data, focusing on blocking, prompt-based matching, and LLM-based methods.
Contributions to deliverables, tool evaluation, and infrastructure within H2020 project workflows.
Development and optimization of algorithms for Set and String Similarity Joins, including novel and baseline techniques.
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Junior Web Developer
Upthink - Feb 2018 - Mar 2019Utilizing WordPress, Writing custom scripts (HTML5, CSS3, JavaScript, jQuery) for front-end and coding in PHP & SQL for back-end development.
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Capstone Student
National Bank of Greece - Sep 2018 - Dec 2018MSc Thesis: Anomaly Detection on System Logs with Graph Analytics.
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Intern
NCSR Demokritos - Jul 2016 - Oct 2016BSc Thesis: Author Profiling in Social Media using Topic Modeling Methods and Ensembling in Data Science.
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Education
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Computer Science (PhD)
National and Kapodistrian University of Athens - 2020 - CurrentPhD Thesis: Entity Resolution: From Syntactic Similarity to Large Language Models
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Data Science (MSc)
Athens University of Economics and Business - 2017 - 2018Grade: 9.23 (Excellent)
Ranked 3rd amongst graduates.
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Informatics and Telecommunication (BSc)
National and Kapodistrian University of Athens - 2012 - 2016Grade: 8.51 (Excellent)
Specialization in Software and Data & Knowledge Management.
Research Interests
Similarity Search
Finding items similar to a query in a dataset.
Entity Matching
Identifying equivalent entities across datasets or sources.
Similarity Joins
Identifying pairs of records with similar characteristics across datasets or within a dataset.
Presentations
Publications
AvengER: Ensembling and Fine-Tuning LLMs for SELECT Prompts in Entity Resolution
A Zeakis, G Papadakis, D Skoutas, M Koubarakis
European Semantic Web Conference, 301-320An in-depth analysis of pre-trained embeddings for entity resolution
A Zeakis, G Papadakis, D Skoutas, M Koubarakis
The VLDB Journal, 34(1), 1-27Self-configured Entity Resolution with pyJedAI
V Efthymiou, E Ioannou, M Karvounis, M Koubarakis, J Maciejewski, K Nikoletos, G Papadakis, D Skoutas, Y Velegrakis, A Zeakis.
2023 IEEE International Conference on Big Data (BigData), 339-343Pre-trained embeddings for entity resolution: An experimental analysis
A Zeakis, G Papadakis, D Skoutas, M Koubarakis
Proceedings of the VLDB Endowment 16 (9), 2225-2238TokenJoin: Efficient Filtering for Set Similarity Join with Maximum Weighted Bipartite Matching
A Zeakis, D Skoutas, D Sacharidis, O Papapetrou, M Koubarakis
Proceedings of the VLDB Endowment 16 (4), 790-802Multi-Attribute Similarity Search for Interactive Data Exploration.
K Patroumpas, A Zeakis, D Skoutas, R Santoro
EDBT/ICDT WorkshopsSPHINX: a system for metapath-based entity exploration in heterogeneous information networks
S Chatzopoulos, K Patroumpas, A Zeakis, T Vergoulis, D Skoutas
Proceedings of the VLDB Endowment 13 (12), 2913-2916