Flor Plaza
LightNews LightNews
banner
florplaza.bsky.social
Flor Plaza
@florplaza.bsky.social
410 followers 260 following 29 posts
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/
Posts Replies Media Videos
Pinned
florplaza.bsky.social
Flor Plaza @florplaza.bsky.social · Mar 24
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!
florplaza.bsky.social
⏳ 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...
November 12, 2025 at 10:05 AM
florplaza.bsky.social
📢 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
PhD Candidate in Emotionally and Socially Aware Natural Language Processing
The Faculty of Science and the Leiden Institute of Advanced Computer Science (LIACS) are looking for a:PhD Candidate in Emotionally and Socially Aware Natural Language Processing (1.0fte)Project descr...
tinyurl.com
October 6, 2025 at 2:26 PM
Reposted by Flor Plaza
dirkhovy.bsky.social
Comprehensive preprint out now, check it out (feedback welcome!).
joachimbaumann.bsky.social Joachim Baumann @joachimbaumann.bsky.social · Sep 12
🚨 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
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.
September 12, 2025 at 12:55 PM
Reposted by Flor Plaza
joachimbaumann.bsky.social
🚨 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
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.
September 12, 2025 at 10:33 AM
Reposted by Flor Plaza
woahworkshop.bsky.social
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...
August 25, 2025 at 1:12 PM
Reposted by Flor Plaza
milanlp.bsky.social
#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
aclanthology.org
July 31, 2025 at 3:04 PM
Reposted by Flor Plaza
tommasoc80.bsky.social
🗓️ 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....
GitHub - tommasoc80/woah_2025_shot_selection
Contribute to tommasoc80/woah_2025_shot_selection development by creating an account on GitHub.
github.com
July 27, 2025 at 12:05 PM
Reposted by Flor Plaza
deboranozza.bsky.social
"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
July 27, 2025 at 10:29 AM
Reposted by Flor Plaza
mariaa.bsky.social
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:...
July 17, 2025 at 11:15 AM
Reposted by Flor Plaza
ailc-nlp.bsky.social
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...
June 9, 2025 at 8:23 AM
Reposted by Flor Plaza
gattanasio.cc
(totally unbiased opinion): Cool paper!
June 16, 2025 at 5:14 PM
Reposted by Flor Plaza
milanlp.bsky.social
🎉 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! 🚀
July 16, 2025 at 12:11 PM
Reposted by Flor Plaza
woahworkshop.bsky.social
🥁 #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!
July 15, 2025 at 11:11 AM
Reposted by Flor Plaza
aswathyve.bsky.social
✨ 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/
June 25, 2025 at 7:41 PM
Reposted by Flor Plaza
dirkhovy.bsky.social
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
Syllabus
Syllabus: Computational Methods for Social and Political Science, Spring 2025 Recommended Reading: Christian, B., & Griffiths, T. (2016). Algorithms to live by: The computer science of human decisio...
docs.google.com
May 23, 2025 at 7:40 AM
Reposted by Flor Plaza
woahworkshop.bsky.social
📢 #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...
docs.google.com
May 23, 2025 at 10:25 AM
florplaza.bsky.social
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!
April 24, 2025 at 4:44 PM
Reposted by Flor Plaza
deboranozza.bsky.social
👥 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
April 7, 2025 at 5:15 PM
florplaza.bsky.social
Don't miss the #WOAH2025 deadline!
woahworkshop.bsky.social Workshop on Online Abuse and Harms @woahworkshop.bsky.social · Mar 31
📆 Reminder! 📆

🚀 The #WOAH2025 submission deadline is just over two weeks away! (April 18, 2025, Anywhere on Earth!)

🔗 CfP: workshopononlineabuse.com/cfp.html

We're excited to see your submissions! 🤩

#ACL2025 #NLProc
Call For Papers
The 9th Workshop on Online Abuse and Harms (WOAH) at ACL 2025.
workshopononlineabuse.com
March 31, 2025 at 9:04 AM
Reposted by Flor Plaza
deboranozza.bsky.social
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
March 28, 2025 at 4:10 PM
Reposted by Flor Plaza
suzanv.bsky.social
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
PhD Candidate in Explainable NLP for Regulatory Compliance Detection
The Faculty of Science and the Leiden Institute of Advanced Computer Science (LIACS) are looking for a:PhD Candidate in Explainable NLP for Regulatory Compliance Detection Are you passionate about Exp...
www.universiteitleiden.nl
March 28, 2025 at 7:58 AM
florplaza.bsky.social
🗣️ 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)
C-SEPLN: Análisis de emociones en PLN: Desafíos, Aplicaciones y Consideraciones Éticas | Sociedad Española de Procesamiento del Lenguaje Natural
www.sepln.org
March 27, 2025 at 11:27 AM
Reposted by Flor Plaza
milanlp.bsky.social
Thrilled for Flor and her new position! 🌟 Congrats on this exciting chapter—you're going to be amazing!
florplaza.bsky.social Flor Plaza @florplaza.bsky.social · Mar 24
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!
March 25, 2025 at 8:54 AM
florplaza.bsky.social
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!
March 24, 2025 at 12:05 PM
florplaza.bsky.social
🚨 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
March 5, 2025 at 1:02 PM