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Giorgos Tolias

@gtolias.bsky.social
1.2K followers 475 following 210 posts

Associate Professor at CTU in Prague. Computer Vision Researcher at the Visual Recognition Group vrg.fel.cvut.cz. Made in Greece, exported to France and Czech Republic. cmp.felk.cvut.cz/~toliageo

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Reposted by Giorgos Tolias
Noa Garcia @noagarciad.bsky.social · 11/09/2026
Today we will be presenting THIS PIECE OF WORK. Encoders. Datasets. Shortcuts. Mitigations. 🕒 10:30 - 12:30 📍 ExHall #34 Come for the design, stay for the research! @eccv.bsky.social
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Giorgos Tolias @gtolias.bsky.social · 10/09/2026
the poster id discontinuity is entertaining @eccv.bsky.social
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Giorgos Tolias @gtolias.bsky.social · 06/09/2026
Choices in the image acquisition and processing pipeline leave traces in the representation space of foundational vision encoders. At ECCV 2026 we discuss about the what, the why, and the how to fix it. @eccv.bsky.social #ECCV2026
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Maria Antoniak @mariaa.bsky.social · 04/09/2026
1. i get real value from bsky 2. every day i spend here and not on x is a career sacrifice 3. some people are capable of making ethical non-selfish choices 4. powerful people posting on x traps conversation, supports a nazi, and hurts people who made better choices 5. bullying happens on x too
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Giorgos Tolias @gtolias.bsky.social · 04/09/2026
CV4GOOD — Computer Vision for Humanitarian Action ECCV 2026 workshop, first edition. Malmö, Tuesday 8 September, 14:00 to 18:00. Room Malmömässan D2 If you work on computer vision and care about where it can do good, come join us. cv4good.thegoodailab.org @eccv.bsky.social #ECCV2026
cv4good.thegoodailab.org
CV4GOOD — Computer Vision for Humanitarian Action
ECCV 2026 workshop in Malmö, Sweden on Tuesday, September 8, 2026, pairing CV researchers with humanitarian practitioners from MSF.
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Giorgos Tolias @gtolias.bsky.social · 04/09/2026
📢 The Instance-Level Recognition and Generation (ILR+G) Workshop is happening at ECCV'26! 🗓️ Sep 8, 8:30am–12:30pm (CEST) 📍 Room 306 A If you work on computer vision at its finest class-wise granularity, i.e. recognizing, localizing, and synthesizing particular objects, come join us.
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Diane Larlus @dlarlus.bsky.social · 03/09/2026
Looking for a research scientist role in a beautiful and mountainous landscape? The visual representation learning team @naverlabseurope.bsky.social is hiring!
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Giorgos Tolias @gtolias.bsky.social · 25/08/2026
Your camera leaves fingerprints on every photo. Vision encoders learned to read them. Read about the bad and the good sides of it. "Invisible Shortcuts: Why Vision Encoders Know Your Camera" has been accepted at ECCV 2026. Paper: arxiv.org/pdf/2608.05424 @eccv.bsky.social #ECCV2026
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Dmytro Mishkin @ducha-aiki.bsky.social · 21/08/2026
Doomed to Re-Annotate, Forever: The ImageNet Story Illia Volkov, Nikita Kisel, Tetiana Mishkina, @klara-cz.bsky.social Jiri Matas tl;dr: ImageNet val annotation with all bboxes, careful study of concepts, attributes (is drawing of a cat, a cat?) Year of efforts. 1/ arxiv.org/abs/2608.13783
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Noa Garcia @noagarciad.bsky.social · 07/08/2026
AI for Peace 2nd edition is back at @neuripsconf.bsky.social, Paris, December. The call for in person presentations is open. Submit, come, and be part of a community that is building up. AI for Peace @ NeurIPS 2026, Paris - One-page, non-archival, talk or poster. - Deadline 14 September 2026
Banner with a description of AI for Peace workshop. "A one-day workshop on how AI research enters military use-and researchers' responsabilities when it does". Link to submit a presentation.
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Klara Janouskova @klara-cz.bsky.social · 07/08/2026
We needed region annotations. We looked at what already existed… and we decided to build our own dataset. Meet STRAP 🎉 🤗 huggingface.co/datasets/vrg-prague/STRAP 🔗 klarajanouskova.github.io/STRAP Region–text annotations for 2M web images, from a single pass of a frozen open MLLM. 🧵
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Giorgos Kordopatis-Zilos @gkordo.bsky.social · 26/07/2026
🎓 Student Support Grants are now available! Are you a student working on instance-level recognition and generation? We offer Student Support Grants for participants attending the ILR+G Workshop @eccv.bsky.social 📅 Application deadline: July 31, 2026 📝 Apply here: forms.gle/qvqn2LyWXCvN...
forms.gle
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Klara Janouskova @klara-cz.bsky.social · 23/06/2026
VRG researches successfully released into the wild. Reintroduction to natural habitat (the lab) scheduled for tomorrow. The summer retreat was great, thanks @gtolias.bsky.social and everybody who helped make it happen! 😊
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Gabriel Peyré @gabrielpeyre.bsky.social · 16/06/2026
The alpha version of my new book "Optimal Transport for Machine Learners" is out, with in particular an online version with interactive figures www.gpeyre.com/ot4ml/
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Giorgos Tolias @gtolias.bsky.social · 15/06/2026
Dear Claude, I used to code, then I did less, now you code, and I confess, my curiosity, once held at bay, gets satisfied within a day. I was thirsty, you handed me a glass, a small relief, I thought it would pass, but then I saw the river, wide and clear, and now my thirst has no frontier.
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Sandra Wachter @swachter.bsky.social · 21/05/2026
Still time to apply!! Come & work with me at the Hasso Plattner Institute & @bmittelstadt.bsky.social @cruss.bsky.social @oii.ox.ac.uk If you care about ethical, legal, and social aspects of AI, generative AI and other emerging technologies and EU tech laws, then apply now! tinyurl.com/556jty8t
tinyurl.com
Postdoctoral Researcher (m/f/x) in Technology and Regulation
Postdoctoral Researcher (m/f/x) in Technology and Regulation
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Christoph Lampert (MLCV@ISTA) @mlcv-at-ista.bsky.social · 10/06/2026
We're hiring! My group at @istaresearch.bsky.social ( @ellis.eu Unit Vienna) offers postdoc openings in the area of Trustworthy Machine Learning and Transfer Learning. Theory, algorithms or applications are all welcome. Have a look at cvml.ista.ac.at/Postdoc-ML.h... and spread the word!
cvml.ista.ac.at
Machine Learning and Computer Vision Group -- Christoph Lampert -- ISTA
Postdoc positions in Machine Learning at ISTA (Vienna, Austria): curiosity-driven, fully-funded, English-language institute
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Mark Riedl @markriedl.bsky.social · 08/06/2026
Meta silently put face recognition on their smart-glasses, then silently took it off again after @wired.com reported on it www.wired.com/story/meta-r...
wired.com
Meta Deletes Face-Recognition System From Its Smart Glasses App After WIRED Report
The code WIRED identified is gone from the latest version of Meta AI, the companion app for the company’s smart glasses. Meta won’t say why or whether it’s coming back.
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Philippe Weinzaepfel @weinzaepfelp.bsky.social · 07/06/2026
When were #CVPR2026 papers available on arXiv? 👇
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Dmytro Mishkin @ducha-aiki.bsky.social · 04/06/2026
Get ready to Image Matching Workshop 2026 today at @cvprconference.bsky.social Room: 504 13:00 local time 3 star speakers: ⭐ @pesarlin.bsky.social ⭐ Nikhil Keetha ⭐ @jianyuanwang.bsky.social ✅10 papers ✅IMC2026 story #CVPR2026
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Giorgos Tolias @gtolias.bsky.social · 04/06/2026
it seems that the new common, and unfortunate, practice is for workshop schedules is to only list the name of the keynote speakers and not the topic of their talk! 🙄
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Giorgos Tolias @gtolias.bsky.social · 04/06/2026
Our work Global-Aware Edge Prioritization for Pose Graph Initialization is a CVPR 2026 oral paper and award candidate. Oral: Sun, Jun 7, 10:15 — 11:30 at Bluebird Ballroom (Oral Session 5A: Dynamic Perception) 📎 Poster: Sun, Jun 7, 11:45 AM — 1:45 PM at ExHall F (Poster Session 5), Poster #2
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Giorgos Tolias @gtolias.bsky.social · 04/06/2026
Indexing Multimodal Language Models for Large-scale Image Retrieval - CVPR 2026 Findings paper A multimodal LLM (like Qwen) can estimate image-to-image similarity remarkably well without any task-specific training. 📍 Main conference — Poster #12, ExHall A 📅 Sun 7/6, 7:30–9:00
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Giorgos Tolias @gtolias.bsky.social · 03/06/2026
𝑹𝒆𝒕𝒓𝒊𝒆𝒗𝒆 𝒂𝒏𝒅 𝑺𝒆𝒈𝒎𝒆𝒏𝒕 (𝑹𝑵𝑺) at CVPR 2026 — selected as a 🌟 𝑯𝒊𝒈𝒉𝒍𝒊𝒈𝒉𝒕 🌟 (top ~4% of submissions)! 𝗪𝗵𝗲𝗿𝗲 𝘁𝗼 𝗳𝗶𝗻𝗱 𝘂𝘀 𝗮𝘁 𝗖𝗩𝗣𝗥 𝟮𝟬𝟮𝟲 (𝗗𝗲𝗻𝘃𝗲𝗿): 🔹 𝑴𝒂𝒊𝒏 𝑪𝒐𝒏𝒇𝒆𝒓𝒆𝒏𝒄𝒆 Poster Session 4 (#578) — June 6, 16:45–18:45 🔹 𝑾𝒉𝒂𝒕 𝒊𝒔 𝑵𝒆𝒙𝒕 𝒊𝒏 𝑴𝒖𝒍𝒕𝒊𝒎𝒐𝒅𝒂𝒍 𝑭𝒐𝒖𝒏𝒅𝒂𝒕𝒊𝒐𝒏 𝑴𝒐𝒅𝒆𝒍𝒔? Workshop — June 3, 14:30–16:00
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Giorgos Tolias @gtolias.bsky.social · 31/05/2026
Vision Transformers are brittle to variable input resolutions. In dense prediction tasks, the standard fix is sliding-window inference with heavy overlap, which is effective but painfully slow. SPAR (Single-Pass Any-Resolution ViT), takes a different approach.
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NeurIPS Europe @neuripseurope.bsky.social · 25/05/2026
Do you want to connect with the European AI research community? NeurIPS Europe is coming to Paris (Dec 9th-13th) and we are looking for sponsors to help to make it happen. Tiers from Bronze (10k€) to Platinum (60k€). neurips.cc/sponsors/pro... @ellis.eu
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Giorgos Tolias @gtolias.bsky.social · 25/05/2026
The instance level recognition and generation workshop will be back at @eccv.bsky.social 2026. With excellent keynote speakers, a call for papers, and travel grants for students.
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Giorgos Tolias @gtolias.bsky.social · 22/05/2026
Do vision and vision-language foundation models suffer from shortcut learning? Is this only a curse or also a blessing? I'm excited to discuss our recent work at the AMD AI Research Club session with Pier Luigi Dovesi. 📅 May 28, 2026 — 2PM Prague time Register here 👇 amd.zoom.us/webinar/regi...
amd.zoom.us
Welcome! You are invited to join a webinar: Invisible Shortcuts: Why Vision Encoders Know Your Camera | AMD AI Research Club. After registering, you will receive a confirmation email about joining the...
Join us for the third session of the AMD AI Research Club, a peer-to-peer paper spotlight series connecting AI researchers, engineers, and practitioners shaping the future of AI. In this session, Gio...
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Evangelos Kazakos @ekazakos.bsky.social · 25/04/2026
Our AI for Peace workshop will take place tomorrow, 26th of April, 9:00 AM - 5:00 PM in room 206. #ICLR2026 @iclr-conf.bsky.social If you are worried about the military uses of AI, come to support us and get informed! 🗓️ 26th of April, 9:00 AM - 5:00 PM 📍206
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Bill Psomas @billpsomas.bsky.social · 24/04/2026
🇧🇷 Presenting our ICLR 2026 paper “Efficient Probing” (EP) today! ❓What if linear probing is asking the wrong question? 🥳 EP is a lightweight attention probing method that better evaluates local, patch-level representations from models like MIM. 📍Friday 24 April, P4-#3713, 15:15–17:45
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Giorgos Tolias @gtolias.bsky.social · 23/04/2026
The Visual Recognition Group at CTU in Prague organizes the 51st Pattern Recognition and Computer Vision Colloquium with Roman Bednarik, István Sárándi, Andreas Geiger, Jan Škvrna, Yuki Asano and Dániel Baráth. cmp.felk.cvut.cz/colloquium/#... Happening today, Thursday Apr 23, 11:00-17:00.
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Andrei Bursuc @abursuc.bsky.social · 17/04/2026
Back to self-supervised basics (rotation prediction, colorization) in the era of MLLMs. We discovered that simply interleaving SSL tasks with instruction tuning ones improves visual grounding of MLLMs, especially on vision-centric tasks. Check it out 👇
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David Picard @davidpicard.eurosky.social · 01/04/2026
🚨 Happy to announce CVPR@Paris'26 which will take place on June 1st in Paris. The goal of the event is to share a little bit of the conference before it happens. We will have poster sessions as well as several plenary talks by world-class speakers. info: cvprinparis.github.io/CVPR2026InPa...
cvprinparis.github.io
CVPR@Paris 2026 June 1st
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Klara Janouskova @klara-cz.bsky.social · 09/03/2026
Let me introduce our new paper: Multimodal Large Language Models as Image Classifiers ❓ Multimodal LLMs are increasingly used for visual tasks, but evaluating their image classification ability has produced conflicting conclusions. Link: arxiv.org/html/2603.06...
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Giorgos Tolias @gtolias.bsky.social · 23/02/2026
Efficient Probing will be presented at ICLR 2026. We introduce EP, an attentive probing method that consistently outperforms linear probing and prior attentive approaches. It's a simple, intuitive design that avoids over-parameterization compared to the black-box use of standard components.
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Giorgos Tolias @gtolias.bsky.social · 03/02/2026
The new CTU Rector begins their term in office with strong support for excellence. CTU has just launched a Starting Grant to attract outstanding early‑career researchers who wish to join CTU and establish their own research group. Funding: up to €160k per year for 3 years. Deadline: 30 March 2026.
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Giorgos Tolias @gtolias.bsky.social · 08/01/2026
I have an opening for a two years post-doc position on instance-level (personalized) visual generation. Eligibility: (i) <=7 years from Ph.D. (ii) studies or 1 year outside of Czechia (ii) >=3 journal with IF or CORE A*/A conference papers. Deadline: 15 Feb. Details: www.euraxess.cz/jobs/399390
euraxess.cz
Postdoctoral research position in Instance-level visual generation
Czech Technical University in Prague (CTU) offers a fellowship program, the CTU Global Postdoc Fellowship. This new and attractive two-year fellowship-program offers excellent researchers who have rec...
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Bill Psomas @billpsomas.bsky.social · 06/01/2026
🚀New task: Instance-level Image+Text→Image Retrieval 🔎Given a query image + an edit (“during night”), retrieve the same specific instance after the change — not just any similar object. 🛢New dataset on HF: i-CIR huggingface.co/datasets/bil... 🔥Download, run, and share results!
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Bill Psomas @billpsomas.bsky.social · 20/12/2025
📣 i-CIR dataset (NeurIPS 25) is now on @hf.co. 🚀Easier download + better discoverability + WebDataset shards for large-scale use (~750K images). 🤗 Grab it here: huggingface.co/datasets/bil... #computervision #retrieval #datasets #huggingface #NeurIPS
huggingface.co
billpsomas/icir · Datasets at Hugging Face
We’re on a journey to advance and democratize artificial intelligence through open source and open science.
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Bill Psomas @billpsomas.bsky.social · 27/12/2025
1/n REGLUE Your Latents! 🚀 We introduce REGLUE: a unified framework that entangles VAE latents ➕ Global ➕ Local semantics for faster, higher-fidelity image generation. Links (paper + code) at the end👇
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Giorgos Tolias @gtolias.bsky.social · 16/12/2025
This is a very serious initiative. While AGI risk debates get much attention, we should worry more about the immediate danger from AI’s role in automating war and surveillance.
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Serge Belongie @serge.belongie.com · 11/11/2025
Prof. @tokehoye.bsky.social (Aarhus University) and I have an open PhD position (jointly advised) on biodiversity monitoring with camera trap networks. Deadline: 15-Jan-2026 Please help us share this post among students you know with an interest in Machine Learning and Biodiversity! 🤖🪲🌱
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Giorgos Tolias @gtolias.bsky.social · 06/11/2025
There is a lot of work done recently on composed image retrieval, but we felt that none of the existing benchmarks reflect the real-world challenges and applications. So, we created a new test benchmark for instance-level composed image retrieval.
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Kosta Derpanis @csprofkgd.bsky.social · 01/11/2025
Looking for a PhD program? It all starts with great supervision. Choose wisely. www.nature.com/articles/d41...
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Noa Garcia @noagarciad.bsky.social · 26/10/2025
This is the real-world harm of computer vision: false accusations of gun possession over a bag of crisps. Deploying this in public is reckless. www.bbc.com/news/article...
bbc.com
Armed police handcuff teen after AI mistakes crisp packet for gun in US
Taki Allen, 16, said he was eating a bag of Doritos after football practice before being handcuffed by police.
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Giorgos Tolias @gtolias.bsky.social · 29/10/2025
Honored to receive a Google award to support research on vision-language models for retrieval. Grateful for the opportunity to strengthen our collaboration with Google researchers, especially Ahmet Iscen.
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Dmytro Mishkin @ducha-aiki.bsky.social · 21/10/2025
All slides for the RANSAC in 2025 tutorial are online #ICCV2025 danini.github.io/ransac-2025-...
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Giorgos Tolias @gtolias.bsky.social · 22/10/2025
Today at #ICCV2025 (afternoon poster session): see how sensitive some foundational models are to non-semantic cues like JPEG compression and camera model. Such cues can heavily distort their semantic predictions.
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Giorgos Tolias @gtolias.bsky.social · 16/10/2025
Join our Instance-level Recognition and Generation workshop at #ICCV2025 with keynote and oral/poster presentations on image object recognition and generation at its finest granularity; each unique object of the physical world forms its own class.
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Giorgos Tolias @gtolias.bsky.social · 15/10/2025
The colloquium at CTU in Prague had 6 great talks and a lot of discussions before, during and after the event. The slides are now shared online. It was the 50th and our administrators surprised us with a huge Czech cake - Koláč. See you in April again!
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