@ChaToX

ICREA Professor @UPFBarcelona Researcher on algorithmic fairness and social computing leading @UPF_Recomputing (Nonbinary: they/them) 🏳️‍🌈

 Mastodon
chato.cl/
Joined May 2007
  • Tweets5.8K
  • Following1.7K
  • Followers3.8K
288Media
How to address predictive arbitrariness in criminal recidivism risk assessment? We claim that choosing the lowest risk among the outputs of multiple models is a good strategy. Details on our new paper with Ashwin S., to be presented at #AIES2026 arxiv.org/abs/2606.02198v2

Model Multiplicity and Predictive Arbitrariness in Recidivism Risk...

Prediction tasks over individual futures, which are inherently noisy, often admit multiple similarly accurate models. When these models produce different predictions for the same individual, they...

arxiv.org
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@𝘾𝙝𝙖𝙏𝙤@tech.lgbt in Mastodon retweeted
CCOO de Catalunya@ccoocatalunyaSep 10
I un 11 de setembre recordem també Salvador Allende, assassinat ara fa 53 anys defensant la democràcia i un futur més just per al poble de Xile. La unitat ens farà invencibles.
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After years of work our learning methodology for data access rights has been published! Thanks to Gloria González Fuster (VUB), Dimitris Kotzinos (CY Cergy Paris), Noortje Marres (Warwick), and multiple generations of FATE students: doi.org/10.1080/2331186X.202…

Data subject access requests as an interdisciplinary learning tool

The General Data Protection Regulation (GDPR) gives data subjects the right to obtain a copy of their data, as well as information regarding the purposes of the processing, categories of personal d...

tandfonline.com
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[es] "El riesgo real de la IA no es el de las películas, sino el de un sistema que te niega un empleo o una libertad condicional" publico.es/ciencias/riesgo-r…

Carlos Castillo: "El riesgo real de la IA no es el de las películas, sino el de un sistema que te...

El equipo de este científico de datos investiga la forma en que sistemas como RisCanvi provocan discriminaciones.

publico.es
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[es] Acerca de la propuesta en España de prohibir el acceso a medios sociales a menores de edad chato.cl/life/es/lo-que-no-p… #socialmedia #teenagers
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[es] Un proyecto de investigación europeo, liderado por la UPF, alerta de una discriminación invisible en los procesos de selección de personal: la provocada por los sesgos tecnológicos y algorítmicos de muchas plataformas digitales de búsqueda de empleo: upf.edu/web/focus/w/carlos-c…

Carlos Castillo (UPF) alerta de la “discriminació invisible” de les plataformes de cerca de feina...

Expert en justícia algorítmica, ha dirigit el projecte europeu FINDHR, que aplega 11 institucions de 7 països, amb què s’han creat tres kits d’eines per a professionals de recursos humans, responsa...

upf.edu
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My Christmas message is this: you are writing a paper, not a mystery novel - state your key results early, right after establishing the problem's significance. Ho ho ho.
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Algorithmic recruitment tools have a huge impact in hiring decisions. A. Fabris, C. Rus, J. Saldivar, A. Gatzioura, A. J. Biega, C. Castillo. Does fair ranking lead to fair recruitment outcomes? Inf. Proc. & Mgmt. doi.org/10.1016/j.ipm.2025.1… @HorizonFINDHR
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[cat] Sèrie CIDUI: Avui presentem un projecte sobre analítica institucional que alerta sobre possibles biaixos lingüístics en les avaluacions docents -- Francielle Marques, Davinia Hernández-Leo, Carlos Castillo, Mireia Trenchs-Parera upf.edu/web/guest/innovacio-… @enginyeria_upf

Sèrie CIDUI: Avui presentem un projecte sobre analítica institucional que alerta sobre possibles...

Amb l'objectiu de difondre la innovació docent, seguim amb la sèrie de notícies setmanals dedicades a resumir algunes de les comunicacions que el professorat de la Universitat Pompeu Fabra (UPF) va...

upf.edu
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@𝘾𝙝𝙖𝙏𝙤@tech.lgbt in Mastodon retweeted
Social and Responsible Computing@UPF_Recomputing19 Nov 2025
Mykola Trokhymovych (@trokhymovych) a PhD student in the Social and Responsible Computing research group, won a Google PhD Fellowship. Congratulations! upf.edu/web/recomputing/home…

Mykola Trokhymovych wins Google PhD Fellowship - Social and Responsible Computing Research Group -...

Mykola Trokhymovych, a PhD student of the Social and Responsible Computing research group, has been recognized in the Human-Computer Interaction category.

upf.edu
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[es] Presentación para Science Queers el 21/11 en Fac. Química de la Universitat de Barcelona.
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@𝘾𝙝𝙖𝙏𝙤@tech.lgbt in Mastodon retweeted
FINDHR@HorizonFINDHR9 Sep 2025
AI used to screen job applications? As part of the EU-Horizon project FINDHR, we created tools to reduce discrimination in AI-based hiring. 💡 Toolkits with background info and recommendations for Developers, HR Professionals & Policymakers! ➡️ Click here: findhr.eu/toolkits/
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@𝘾𝙝𝙖𝙏𝙤@tech.lgbt in Mastodon retweeted
Social and Responsible Computing@UPF_Recomputing12 Jun 2025
We are looking for a research assistant to help us understand the prospects, in terms of recidivism, of people receiving alternatives to prison such as community services Deadline: 25 June 2025. Starts: July 2025. Part-time, 20h to 30h/week. euraxess.ec.europa.eu/jobs/3…
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La escritora Pino Luna presentará mi libro «Juegos de Niñas y Ñoños: Una Breve Memoria (No) Binaria» este martes 27 a las 17:30 en el Campus Poblenou de la UPF. Inscripciones aquí: upf.edu/web/etic/presentaci%…
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📕 Presentación del libro "Juegos de Niñas y Ñoños" en la Facultad de Ciencias Físicas y Matemáticas de la Universidad de Chile. 🗓️ Jueves 24 de abril ⏰ 12:15-13:00 📍 Beauchef 851 cafetería
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Try this prompt with your favorite AI: I have a brother and a sister. How many sisters does my brother have? Feel free to post the AI's wrong answer below with your thoughts.
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US State Dept. to perform AI-assisted reviews of tens of thousands of student visa holders' social media accounts -- to revoke visas of foreign students who appear "pro-Hamas" axios.com/2025/03/06/state-d…

Scoop: State Dept. to use AI to revoke visas of foreign students who appear "pro-Hamas"

The effort includes AI-assisted reviews of tens of thousands of student visa holders' social media accounts and marks a dramatic escalation in the U.S. government's policing of foreign nationals'...

axios.com
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Disponible para Kindle "Juegos de Niñas y Ñoños", una breve memoria (no)binaria - amazon.es/dp/B0DYL7F6F4
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@𝘾𝙝𝙖𝙏𝙤@tech.lgbt in Mastodon retweeted
Telediarios de TVE@telediario_tve27 Feb 2025
El sexismo en canciones ha crecido hasta un 70% en los últimos diez años rtve.es/play/videos/telediar…

Sexismo en canciones: ha crecido hasta el 70% en la última década

'La Bomba', 'Princesas, o 'Carolina' son algunas de los temas sexistas según la Universidad Pompeu Fabra.

rtve.es
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Our research in sexism in music lyrics is making the news! - Paper: doi.org/10.1080/23311983.202… Led by Laura Casanova and co-authored with Priscila Alvarez-Cueva.
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