@florplaza
Assistant Professor at LIACS, Leiden University Working in NLP for Social Good • Human-centered NLP • Emotions • HateSpeech • Fairness • Ethics • 🏆Awards: SCIE, BBVA Foundation, SEPLN • ☀️🥾🏔🚂 📍 The Netherlands 🌷🧀🚲 🏠 🇪🇸☀️ 👩🏻💻 https://fmplaza.github.io/
🚀 We’re opening 2 fully funded postdoc positions in #NLP!
Join the MilaNLP team and contribute to our upcoming research projects.
🔗 More details: milanlproc.github.io/open_positio...
⏰ Deadline: Jan 31, 2026
New year, new job? If that is your current mantra, check the open postdoc positions with Debora Nozza and me at our lab. Deadline is January 31st.
milanlproc.github.io/open_positio...
⏳ Only 5 days left to apply!
Please note the updated application link (due to a recent university webpage update):
👉 PhD Candidate in Emotionally and Socially Aware Natural Language Processing
careers.universiteitleiden.nl/job/PhD-Cand...
📢 Are you interested in a PhD in #NLProc to study and improve how AI model emotions and social signals?
🚨Exciting news:🚨 I’m hiring a PhD candidate at LIACS,
@unileiden.bsky.social.
📍 Leiden, The Netherlands
📅 Deadline: 17 Nov 2025
👉 Position details and application link: tinyurl.com/5x5v6zsa
Comprehensive preprint out now, check it out (feedback welcome!).
We present our new preprint titled "Large Language Model Hacking: Quantifying the Hidden Risks of Using LLMs for Text Annotation". We quantify LLM hacking risk through systematic replication of 37 diverse computational social science annotation tasks. For these tasks, we use a combined set of 2,361 realistic hypotheses that researchers might test using these annotations. Then, we collect 13 million LLM annotations across plausible LLM configurations. These annotations feed into 1.4 million regressions testing the hypotheses. For a hypothesis with no true effect (ground truth $p > 0.05$), different LLM configurations yield conflicting conclusions. Checkmarks indicate correct statistical conclusions matching ground truth; crosses indicate LLM hacking -- incorrect conclusions due to annotation errors. Across all experiments, LLM hacking occurs in 31-50\% of cases even with highly capable models. Since minor configuration changes can flip scientific conclusions, from correct to incorrect, LLM hacking can be exploited to present anything as statistically significant.
🚨 New paper alert 🚨 Using LLMs as data annotators, you can produce any scientific result you want. We call this **LLM Hacking**.
Paper: arxiv.org/pdf/2509.08825
Excited for WOAH’s 10th anniversary? 😍
We're launching an open call for new organisers!
Our goal: diversify the team and bring in fresh perspectives.
🗓️ Apply by September 12
🔗 forms.gle/aiFs35vwDXnt...
#TBT #NLProc Plaza-del-Arco et al.'s 'Divine LLaMAs..' (2024) addresses stereotypes on religion in Large Language Models and their social impact. Tech for all! #DigitalEquity
🗓️ Fri 01/08, I’ll be presenting two papers at # WOAH2025
“Learning from Disagreement: Entropy-Guided Few-Shot Selection for Toxic Language Detection” with @florplaza.bsky.social
💻 github.com/tommasoc80/w...
📝 aclanthology.org/2025.woah-1....
"Blue-haired, misandriche, rabiata: Tracing the Connotation of 'Feminist(s)' Across Time, Languages and Domains"
With @arimuti.bsky.social, @saragemelli.bsky.social, Emanuele Moscato, Emilie Francis, Amanda Cercas Curry, @florplaza.bsky.social #WOAH2025
The #ACL2025 #ACL2025NLP feed is up and running! It matches both hashtags and any posts from or mentions of @aclmeeting.bsky.social
Pin it to your home 📌 and enjoy!
bsky.app/profile/did:...
Stiamo vivendo una rivoluzione tecnologica, ma quanto conosciamo realmente l'uso dell'IA nella nostra quotidianità? Aiuta a scoprirlo compilando questo breve questionario (10 min): bit.ly/sondaggio_ai...
(totally unbiased opinion): Cool paper!
🎉 The @milanlp.bsky.social lab is excited to present 15 papers and 1 tutorial at #ACL2025 & workshops! Grateful to all our amazing collaborators, see everyone in Vienna! 🚀
🥁 #WOAH2025 Speakers🥁
We are excited to announce an amazing panel of 3 speakers who will discuss our theme "Harms Beyond Hate Speech"
🗣️ @cordeliamoore.bsky.social
🗣️ @fvancesco.bsky.social
🗣️ @katejsim.bsky.social
Full details: www.workshopononlineabuse.com/keynotes.html
🤩 See you on August 1!
✨ The First NLPSI Workshop @ ICWSM 2025 is a wrap!
Huge thanks to the speaker (Bennett Kleinberg), authors, reviewers, attendees, and co-organizers (Sofie Labat, Neele Falk, @florplaza.bsky.social, @romanklinger.de & Veronique Hoste) who made it a success.
nlpsi-workshop.github.io/highlights/
Had the chance to revamp a PhD class on CSS. We're now using Colab notebooks to use Python for data analysis.
Check out the new syllabus (w/ reading, slides, background notebooks, and exercises plus solutions).
📚👇 bit.ly/438R6Hk
#ComputationalSocialScience #PhD
📢 #WOAH2025 invites non-archival submissions of relevant papers accepted to the ✨Findings of @aclmeeting.bsky.social✨
To present your Findings paper at #WOAH2025, complete the form by 📆June 10, 2025.
📝Form: docs.google.com/forms/d/e/1F...
It was a pleasure to speak at the #SSaLM workshop at the Weizenbaum Institute, where I gave my invited talk, "The Heart of Language Models: Decoding Emotion Biases and Societal Stereotypes."
Thank you, Fatma Elsafoury and Jan Batzner, for inviting me and for the fantastic organization!
👥 Join us for the 1st Workshop on Protecting Women Online at TheWebConf!
📅 April 28, 2025 | 📍Sydney, Australia
🌐 Program & details: tsww25.github.io
Featuring amazing invited talks & discussions on tackling #VAWG — don’t miss it!
#TheWebConf25 #NLProc
Don't miss the #WOAH2025 deadline!
This week, I had the pleasure of giving an invited talk at the #HumanCLAIM workshop in Göttingen on hate speech and pluralism in subjective NLP 🗣️✨ Big thanks to Lisa Beinborn for the invitation and the organization! #NLProc
3 days left to respond to this PhD vacancy with Niki van Stein:
PhD Candidate in Explainable NLP for Regulatory Compliance Detection www.universiteitleiden.nl/en/vacancies...
Part of the ICAI lab AI4Oversight, collaboration with TNO and 4 inspectorates, together with 5 other PhD students
🗣️ Esta tarde a las 🕔 17:00 (CEST), tendré el placer de hablar sobre ✨"Análisis de emociones en PLN: Desafíos, Aplicaciones y Consideraciones Éticas"✨en las Charlas de la SEPLN. ¿Te gustaría unirte?
➡ Regístrate aquí: www.sepln.org/actualidad/e... (online)
💙💙💙💙
Thrilled for Flor and her new position! 🌟 Congrats on this exciting chapter—you're going to be amazing!
New chapter ahead! 🚀
I’ve joined as an Assistant Professor at LIACS, Leiden University @unileiden.bsky.social! 🇳🇱🌷
The past two years at @milanlp.bsky.social have been incredibly rewarding and fun. Thanks to the fantastic MilaNLP crew for making it unforgettable!
🚨 𝗡𝗟𝗣𝗦𝗜 𝟮𝟬𝟮𝟱: The first Workshop on NLP & Psychology for Social Interactions, co-located with 𝗜𝗖𝗪𝗦𝗠 𝟮𝟬𝟮𝟱!
We invite submissions from NLP, psychology, and related fields on integrating NLP with psychological theories for studying communication and human behavior.
📌 Submission deadline: March 21
Wanna keep up with our @milanlp.bsky.social lab? Here is a starter pack of current and former members:
bsky.app/starter-pack...