PeopleofSuperintelligence

Researcher

Maria Vanina Martinez Posse

Maria Vanina Martinez Posse is an AI researcher who studies knowledge representation and reasoning about changing, inconsistent and uncertain information. She earned a computer science PhD at the University of Maryland College Park and completed postdoctoral studies at Oxford University. Before joining IIIA-CSIC, she worked as a CONICET researcher and as an assistant professor at the University of Buenos Aires. IEEE Intelligent Systems recognized her in 2018; she received Argentina's National Academy of Exact, Physical and Natural Sciences Stimulus Award in 2021 and a Konex Award in 2023. She joined the UN Secretary-General's High-Level Advisory Body on AI in 2023 and, as of October 2026, is a Ramón y Cajal Fellow at IIIA-CSIC in Barcelona.

Timeline

  1. 2018

    A Maryland PhD and Oxford postdoc

    She earns a PhD in computer science at the University of Maryland College Park and completes postdoctoral studies at Oxford University. IEEE Intelligent Systems recognizes her among ten noteworthy AI researchers in 2018.

  2. 2021–2023

    CONICET, UBA and national honors

    Before joining IIIA-CSIC, she works as a researcher at CONICET in Argentina and serves as an assistant professor at the Department of Computer Science at the University of Buenos Aires. Her research focuses on knowledge representation and reasoning, knowledge dynamics, and managing inconsistency and uncertainty. She receives the National Academy of Exact, Physical and Natural Sciences Stimulus Award in Engineering Sciences in 2021 and the Konex Award in Science and Technology in 2023.

  3. October 2023

    Fellowship and UN advisory role

    By October 2023, she is a Ramón y Cajal Fellow at IIIA-CSIC in Barcelona and joins the UN Secretary-General's High-Level Advisory Body on AI. The body is tasked with issuing recommendations for international AI governance.

  4. 2025

    Advising belief-change and AI theses

    In June 2025, she advises Daniel Grimaldi on his University of Buenos Aires thesis about belief-change operators. She also co-supervises Damian Furman's 2025 industrial PhD on using argumentative information to generate counter-narratives to online hate speech.

  5. December 2025

    Chairing a CSIC hiring panel

    In December 2025, she chairs Spain's selection board for public research scientist positions in computing and artificial intelligence.

  6. As of October 2026

    Ramon y Cajal Fellow at IIIA-CSIC

    As of October 2026, she is a Ramón y Cajal Fellow at IIIA-CSIC in Barcelona.

Career

  1. Since 2023Consejo Superior de Investigaciones CientíficasRamón y Cajal Fellow
  2. 2025Government of SpainChair
  3. From 2023United NationsMember
  4. 2021–2023National Scientific and Technical Research CouncilResearcher
  5. 2021–2023University of Buenos AiresAssistant Professor
  6. University of OxfordPostdoctoral researcher

Education

  1. University of MarylandPhD in computer science

From the biography.

  1. Of 216 AI researchers who entered public life, 83 held advisory seats and 58 took public rolesIncludes Maria Vanina Martinez Posse. Of 216 AI researchers who entered public life, 83 held advisory seats and 58 took public roles. Another 97 people moved from public careers into AI organizations or research, with 62% of dated records starting from 2020 on.
  2. Through 2025, first appointments to public AI advisory and safety bodies peaked in 2023Includes Maria Vanina Martinez Posse. We estimate when the people shaping AI entered public advisory and safety bodies, which institutions connect them, and where they worked beforehand. Through 2025, first recorded appointments peaked in 2023 at 42 people.
  3. The United States employs an estimated 48% of people shaping AIIncludes Consejo Superior de Investigaciones Científicas. We estimate where the people shaping AI work today, how universities, companies and research institutes split across countries, and how country shares have changed since the 1960s.
  4. The company share of AI researchers’ top papers was 31% in 2020–2024 and 8% in 1970–1974Includes Consejo Superior de Investigaciones Científicas. We estimate where the people shaping AI worked when their most-cited papers appeared: the company share was 31% in 2020–2024 and 8% in 1970–1974, and Google led all organizations in 2020–2024.

Colleagues

People with dated positions at the same organization in the same years.

Sources and credits

Photo: We have no published photo of Maria Vanina Martinez Posse yet. Send us a free-licensed photo.

  1. Members | United Nations un.org. Checked 20 October 2026.
  2. UN Secretary-General launches AI Advisory Body on risks, opportunities, and international governance of artificial intelligence india.un.org. Checked 20 October 2026.
  3. A study of a family of non-prioritized belief change operators iiia.csic.es. Checked 20 October 2026.
  4. Automatic Generation of Counter-narratives using Argumentative Information to Fight Hate Speech Online iiia.csic.es. Checked 20 October 2026.
  5. Disposición 27154 del BOE núm. 315 de 2025 boe.es. Checked 20 October 2026.