PeopleofSuperintelligence

Researcher

Christos Christodoulopoulos

Christos Christodoulopoulos is a Principal Technology Advisor in the Information Commissioner's Office AI Compliance team. He studied Digital Systems and Technology Education at Piraeus, earned a master's degree at Edinburgh, and researched part-of-speech induction. His postdoctoral work at Illinois focused on semantic role labeling and language acquisition before he joined Amazon in 2016. In 2018, he coauthored FEVER, and in 2024 he coauthored an account of Amazon Nova's responsible-AI methods. He chaired EMNLP's program in 2025 and is its Senior Program Chair in 2026.

Now at
Information Commissioner's Office
Works
63
Citations
2,556
h-index
19
Badges

Publication numbers from OpenAlex, as of 19 October 2026.

Timeline

  1. 2008

    A natural-logic thesis

    He studies Digital Systems and Technology Education at the University of Piraeus before earning a master's degree at Edinburgh. In 2008, his master's thesis builds a natural-logic inference system.

  2. 2011–2013

    Part-of-speech induction

    In 2011, he publishes a Bayesian mixture model for part-of-speech induction with Sharon Goldwater and Mark Steedman. His 2013 University of Edinburgh PhD thesis explores unsupervised methods for inducing parts of speech across languages.

  3. 2016

    From Illinois to Amazon

    Before joining Amazon in 2016, he is a postdoctoral researcher at the University of Illinois Urbana-Champaign, studying semantic role labeling and computational models of language acquisition.

  4. 2018

    The FEVER dataset

    In 2018, he coauthors FEVER, a large-scale dataset for fact extraction and verification.

  5. 2024

    Responsible AI for Nova

    In 2024, he coauthors Amazon Science's account of responsible-AI methods for Nova, covering model alignment, guardrails, evaluation, red teaming, and image and video watermarking.

  6. 2025

    Conference and compliance roles

    He serves as EMNLP Program Chair in 2025. In November 2025, he is a Principal Technology Advisor in the ICO's AI Compliance team.

  7. As of October 2026

    AI compliance at the ICO

    He is a Principal Technology Advisor in the ICO's AI Compliance team, and EMNLP lists him as Senior Program Chair in 2026.

Career

  1. NowInformation Commissioner's OfficePrincipal Technology Advisor
  2. 2016–2023Amazon
  3. 2014–2016University of Illinois Urbana-ChampaignPostdoctoral researcher

Education

  1. 2013University of EdinburghPhD
  2. 2008University of EdinburghMaster's degree
  3. University of Piraeus

From the biography and OpenAlex affiliations (the years of papers that list the organization), so some years are approximate.

Most-cited works

  1. FEVER: a Large-scale Dataset for Fact Extraction and VERification2018 · Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (NAACL-HLT) · 1,337 citations
  2. The Fact Extraction and VERification (FEVER) Shared Task2018 · 212 citations
  3. Two Decades of Unsupervised POS Induction: How Far Have We Come?2010 · 124 citationsWith Mark J. Steedman and Sharon Goldwater
  4. The Fact Extraction and VERification Over Unstructured and Structured information (FEVEROUS) Shared Task2021 · 101 citations
  5. A taxonomy and review of generalization research in NLP2023 · Nature Machine Intelligence · 70 citationsWith Dieuwke Hupkes

From OpenAlex, as of 19 October 2026.

  1. Google alumni founded or led 87 other organizations, the most among the labs we compareIncludes Amazon. We trace 212 organizations founded or led by AI lab alumni, and 223 career moves between the labs.
  2. More people shaping AI studied at Massachusetts Institute of Technology than at any other institutionIncludes University of Edinburgh. Our estimates of where the people shaping AI studied and where their careers led, from education records in cited biographies.
  3. Stanford University trained or employed 20 of the 89 AI major-prize winners, more than any other universityIncludes University of Edinburgh. Stanford University trained or employed 20 of the 89 AI major-prize winners, more than any other university. We compare doctorate and employment links for major-prize and best-paper winners.
  4. Google has the highest combined h-index among AI organizationsIncludes Amazon. Our estimates of combined and median h-index at AI organizations, using current affiliations and OpenAlex records.

Colleagues

People named in this biography, and people with dated positions at the same organization in the same years.

Sources and credits

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  1. Christos Christodoulopoulos christos-c.com. Checked 19 October 2026.
  2. Can computational linguists find a home in the technology industry? amazon.science. Checked 19 October 2026.
  3. Christos Christodoulopoulos christos-c.com. Checked 19 October 2026.
  4. Iterated learning framework for unsupervised part-of-speech induction era.ed.ac.uk. Checked 19 October 2026.
  5. A Bayesian Mixture Model for PoS Induction Using Multiple Features aclanthology.org. Checked 19 October 2026.
  6. Sharon Goldwater: Supervision homepages.inf.ed.ac.uk. Checked 19 October 2026.
  7. FEVER: a Large-scale Dataset for Fact Extraction and VERification aclanthology.org. Checked 19 October 2026.
  8. Amazon Nova and our commitment to responsible AI amazon.science. Checked 19 October 2026.
  9. Organizing Committee - EMNLP 2025 2025.emnlp.org. Checked 19 October 2026.
  10. News slt-cdt.sheffield.ac.uk. Checked 19 October 2026.
  11. Organizing Committee - EMNLP 2026 2026.emnlp.org. Checked 19 October 2026.