Angelos Chatzimparmpas

Exciting news! 📢 Alex Telea and I are hiring a PhD student in Visual Analytics for Explainable Visual Rehabilitation! Come and join our Visualization and Graphics group at Utrecht University, NL! Do you want to know more and apply? Use this link: uu.nl/en/organisatio…

I’m at #chi2025 and today I’m presenting our paper on characterizing photorealism and artifacts in diffusion model-generated images (@ 2:10 PM, G318-319) Paper: dl.acm.org/doi/pdf/10.114… With @frogspitsimulat ,@aakriti1kumar, @chatzimparmpas, @mattgroh and @JessicaHullman

If you're curious about learning more, say hi to @n3gRain at #CHI2025 and see links below Awesome collaboration with @frogspitsimulat, @aakriti1kumar, @chatzimparmpas @JessicaHullman Video: youtu.be/PL_ggNzMd-o?fe… Preprint: arxiv.org/pdf/2502.11989 CHI: dl.acm.org/doi/10.1145/37…

I'm seeking a postdoc to work with me and @d19fe8 on evaluating AI/ML decision support for human experts: statmodeling.stat.columbia.edu/2024/12/10/pos… P.S. I'll be at NeurIPS Thurs-Mon. Happy to talk about this position or related mutual interests! Please retweet! 🙏

Curious about how to spot AI-generated images? Can you name all the artifact types in the caricature? Check out this #KelloggInsight article summarizing the 50+ page how-to guide @n3gRain @frogspitsimulat @chatzimparmpas @JessicaHullman and I developed earlier this summer

@arpitnarechania @HKUSTCSE @hkust Congratulations! So happy for you! 🎉

📢 I'm joining @HKUSTCSE @HKUST as an assistant professor in Jan'25. I'm recruiting PhD students for Spring/Fall'25 to join my new research lab. Interested in #DataViz, #HCI, #GIS, #NLProc, #AI and to work on interdisciplinary problems? Apply now! Help me spread the word🙏

If you're curious to dig into more examples and learn more, you can check out the how-to guide that @n3gRain @frogspitsimulat @chatzimparmpas @JessicaHullman and I put together on arxiv.org/pdf/2406.08651 This is the first of a few papers we have coming out about photorealism in diffusion models, so stay tuned for more!

We developed a taxonomy of AI image artifacts 👀 Super excited to share what’s come out of the last few months thinking about realism and fakeness in visual media with @mattgroh @n3gRain @chatzimparmpas @JessicaHullman at Northwestern

We are conducting interviews to evaluate a visual analytics tool for debugging ML models and building ensemble models for decision making under uncertainty. If you are familiar with ML, we would be thankful if you could participate using the form below! forms.gle/GmxAfF9r8Co3zN…

Exciting news! Utrecht University offers three tenure-track Assist. Prof. positions in Interaction Technology, with a broad range of topics (incl. visualization and graphics). The application deadline is January 21, 2024. Check out uu.nl/en/organisatio… Welcome to our team!

Excited to share a new paper, "Pre-registration for Predictive Modeling" Pre-print: arxiv.org/abs/2311.18807 Blog post: statmodeling.stat.columbia.edu/2023/12/06/exp… Template: github.com/ml-preregister… Joint w/ @chatzimparmpas, @amt_shrma, @duncanjwatts, and @JessicaHullman

‼️We have only THREE (3) nominations at the moment for the VEC and ZERO (0) for the VSC. If you are considering to run or know someone who would be a great representative, please nominate & retweet to share with your colleagues.

@NElmqvist @EndertAlex Gotcha! We had someone to translate the invitation to both of us and then both parties unanimously agreed to continue in English. 🤣

@EndertAlex @chatzimparmpas I take it the defense was in swedish yeah? 😅

What a journey it has been! Officially a doctor after five years of PhD studies! My gratitude to Andreas Kerren, Rafael Martins and @eelir_j for their support! Many thanks to @EndertAlex, @tanat79, @cagatay_turkay and Jörn Kohlhammer for the interesting discussions. @ISOVIS_Group

@EndertAlex Thank you, @EndertAlex. I appreciate it that you managed to be the opponent. It was fun! :-)

@chatzimparmpas Congrats on an impressive thesis. And quite heavy :)

Don't miss the chance to contribute to VIS for ML research! Submit your extended abstracts, short papers, or full papers before the deadline in 1 month and get published by Springer! Network with researchers from various fields and explore Portugal! #VIS #VA #ML #XAI #springer

We are conducting interviews to evaluate a visual analytics tool for explaining the behavior of complex ML models. If you are familiar with machine learning, we would be really thankful if you could participate! Please fill out this form. Thank you! forms.gle/NtPX5LEicvW4YT…

@FILWD @eelir_j @EndertAlex @tanat79 @cagatay_turkay @ISOVIS_Group Thank you, @FILWD!

@chatzimparmpas @eelir_j @EndertAlex @tanat79 @cagatay_turkay @ISOVIS_Group Congratulations!!!

@shivamlearning @eelir_j @EndertAlex @tanat79 @cagatay_turkay @ISOVIS_Group Thank you, @shivamlearning!

@chatzimparmpas @eelir_j @EndertAlex @tanat79 @cagatay_turkay @ISOVIS_Group Many congratulations!

@curiouslemur @eelir_j @EndertAlex @tanat79 @cagatay_turkay @ISOVIS_Group Thank you, @curiouslemur!

@chatzimparmpas @eelir_j @EndertAlex @tanat79 @cagatay_turkay @ISOVIS_Group Congratulations 🎉🎉

@Irene_Koutroubi @eelir_j @EndertAlex @tanat79 @cagatay_turkay @ISOVIS_Group Thank you, @Irene_Koutroubi!

@chatzimparmpas @eelir_j @EndertAlex @tanat79 @cagatay_turkay @ISOVIS_Group Congratulations! 💐🙂