Last week I gave my inaugural lecture at #HPI and finally got my PhD hat 🎓 Thank you to everyone who made the day special! Here is a recap.

Prof. Eleni Tzirita Zacharatou delivers inaugural lecture at HPI

In her inaugural lecture, Prof. Eleni Tzirita Zacharatou shows how adaptive data systems can keep pace with an increasingly heterogeneous world. Learn more!

hpi.de

After some time away from 🦋 Bluesky, here's a glimpse of what I've been up to recently. 👋 #EDBT2026

Two chair roles, two papers, one top data conference: Prof. Eleni Tzirita Zacharatou on her key responsibilities at one of the top database conferences and balancing multiple demanding roles. ⚖️… | HP...

Two chair roles, two papers, one top data conference: Prof. Eleni Tzirita Zacharatou on her key responsibilities at one of the top database conferences and balancing multiple demanding roles. ⚖️ Fro...

linkedin.com

📢📢 The September 2025 issue of SIGMOD Record is out, so is the Reminiscences column. Thank you, Viktor Leis, Anja Gruenheid, @senorcarbone.bsky.social, and @elenitz.bsky.social for the great contributions! pdf --> sigmodrecord.org/publications...

I’m honored and grateful to be recognized as a Distinguished Reviewer for #VLDB2025. 🎉 Congrats to all the other Distinguished Reviewers and Associate Editors — great to be in such company!

Sadly, I won’t be at #VLDB2025 🇬🇧, but Xenofon Chatziliadis will present our #ADMS paper on GPU-accelerated optimization for streaming systems. 🚀 📅 Mon, 9:00–9:30 (Moore Room, 4F) 📄 Paper: www.vldb.org/2025/Worksho... 🔗 Builds on NEMO (VLDB 2024): www.vldb.org/pvldb/vol17/...

Thank you @bifold.berlin for the feature! @hpi.bsky.social #SpatialAnalytics #LargeScaleData #WomenInSTEM

HPI appoints BIFOLD fellow Eleni Tzirita Zacharatou as professor

Prof. Dr. Eleni Tzirita Zacharatou, BIFOLD Junior Fellow and former postdoctoral researcher in the DIMA group, has been appointed W2 Professor at the Hasso Plattner Institute, University of Potsdam. H...

bifold.berlin

This week, I had the pleasure of visiting #Snowflake's #Berlin office to share an overview of my past and ongoing #research. As you can see in the photos, I’m doing my best to live up to the stage presence of my cartoon #cat self 😀

City data speaks – and here's how to listen 🌆📊 Cities are full of hidden stories in traffic, noise, and crime data. Eleni Tzirita Zacharatou @elenitz.bsky.social turns raw numbers into visuals that reveal what’s really going on. #SoapboxScienceBerlin #WomeninScience #scicomm

🌟 Looking forward to joining this fun and unique event. 🗓️ Sunday, June 15, 2025 🕒 3–7 PM 📍 Holzmarkt 25, Berlin Come say hi! #ScienceForEveryone #WomenInSTEM #WomenInScience #SoapboxScience #SciComm

Soapbox Science Berlin@berlin-soapbox.bsky.social · last yr.

To start the week, let's introduce another wonderful speaker: Dr Eleni Tzirita Zacharatou ✨ She is an Assistant Professor at the @hpi.bsky.social

Check out Harry's podcast on our Sheet Reader parser!

Haralampos Gavriilidis@harrygav.bsky.social · last yr.

Parsing #Excel #spreadsheets at lightning speed — that’s exactly what we built SheetReader for!

Parsing #Excel #spreadsheets at lightning speed — that’s exactly what we built SheetReader for!

DuckDB@duckdb.org · last yr.

📢 The fifth and final episode of the “DuckDB in Research” podcast series is out! Haralampos Gavriilidis | SheetReader: Efficient spreadsheet parsing 🎧 Apple: podcasts.apple.com/us/podcast/h... 🎧 Spotify: open.spotify.com/episode/2CRR...

📢 📢 Pamela Delgado (HES-SO, Switzerland) has a fully-funded PhD position on efficient GPU resource management for deep learning! My team @itu.dk is looking forward to collaborating with her in this project! For more info on the position, see the image and the link: www.jobup.ch/en/jobs/deta...

Last week at #EDBT2025 in Barcelona was a blast! Gave an invited talk (thanks #Huawei!), moderated a DEI panel, and co-organized a DEI tutorial. Wrapped it all up with experiencing the stunning architecture and cultural scene in the city 🏛️🌞. #academia #conference #databases

I am recruiting 2 PhD students for Fall'25 @csaudk.bsky.social to work on bleeding-edge topics in #NLProc #LLMs #AIAgents (e.g. LLM reasoning, knowledge-seeking agents, and more). Details: www.cs.au.dk/~clan/openings Deadline: May 1, 2025 Please boost! cc: @aicentre.dk @wikiresearch.bsky.social

Open positions and projects

### Open semester and Master's projects If you're an AU student looking for a semester project, a Bachelor project, or an MS thesis project, please refer to [this list](projects). ### Prospective PhD ...

cs.au.dk

Excited to serve as Program Co-chair for #HDMS 2025! We warmly welcome all members of the Greek database community to submit their work and join us in the beautiful city of Ioannina. Conference website: acmsigmod.gr/hdms/2025/

🚀 Willkommen am HPI: Zwei neue Professorinnen für #KI und #Datenanalyse! 🎉 Das Institut wächst weiter und begrüßt Prof. Dr. Sandra Wachter im Bereich Künstliche Intelligenz und Prof. Dr. Eleni Tzirita Zacharatou mit ihrer Expertise im Forschungsfeld Datenanalyse. 🔗 hpi.de/artikel/zwei...

I am excited to join the #HPI faculty in Potsdam, Germany, where I will lead the "Spatial Analytics & Large-Scale Data Processing" research group. Looking forward to collaborating with many great students and peers here! #SpatialAnalytics #LargeScaleData #NewJob

Registration open until 21/04 for the 2025 VLDB Summer School ☀️ 28-31/07 - University of Wroclaw 🇵🇱 We have great lecturers on privacy preserving data management, data analytics, distributed databases, cloud computing, graph data & data(base) theory. 👉 vldb-sc25.cs.uni.wroc.pl @vldb.bsky.social

📢📢VLDB26 (@vldb.bsky.social) will have a ShadowPC! Apply at forms.office.com/e/XYihKj4UKq by March 1! Great opportunity for folk who are new to the data management community & want to gain paper reviewing experience. More info at application form. Chairs: @zistvan.bsky.social, Tianzheng Wang, & I.

📢📢 Have a PhD position on the IO-path of deep learning, co-funded by Innovation Fund Denmark. Selected candidate will be affiliated with Samsung Research Denmark and IT University of Copenhagen. Supervised by Vivek Shah, Javier González, and me. More details at www.linkedin.com/jobs/view/41...

New #BTW25 paper📍We enhance classic spatial indexes with a machine-learned search technique, boosting query performance by up to 53x. 🔗 Read more in our paper: heltzi.github.io/publications...

Happy to be part of this great initiative, and excited to interact with even more community members in the future! 😊 #AIgrid

BIFOLD Berlin Institute for the Foundations of Learning and Data@bifold.berlin · 2y ago

We thank all #AIgrid mentors for their commitment to the next generation of #AI #researchers. BIFOLD proudly announce that our scientists, Begüm Demir (RSG Lead) and Eleni Tzirita Zacharatou ( BIFOLD fellow), are taking on mentorship roles. www.linkedin.com/posts/ai-gri... @elenitz.bsky.social

Students can get particularly creative when asked to write a division query 😀 #SQL

🌟 Promoting diversity, EDBT/ICDT 2025 🇪🇸 awards 5 students free conference registration 🌟 📢 Call: edbticdt2025.upc.edu?contents=di_... 🏆Awards: 5 grants for free registration (travel not included) 👉Apply here: forms.gle/6MefnqBHo3pF... 📅 Apply by: Feb 3, 2025 🌈 Results: Feb 14, 2025 Please share 😊

🎉First paper of 2025! Great collaboration with Thanasis Georgiadis & Prof. Nikos Mamoulis. 🚀 We propose a new raster intervals approximation—lightweight, effective & tunable—delivering 3x speedup in spatial joins! 📖 link.springer.com/article/10.1... #vldbjournal #spatial #data

Raster interval object approximations for spatial intersection joins - The VLDB Journal

Spatial join processing techniques that identify intersections between complex geometries (e.g., polygons) commonly follow a two-step filter-and-refine pipeline. The filter step evaluates the query pr...

link.springer.com

EDBT/ICDT now also has a BlueSky account: @edbticdt.bsky.social Preparations are well underway for the 2026 edition is Tampere, Finland 🇫🇮