collaborators

8 papers

cs.CL2026

The Grounding Gap: How LLMs Anchor the Meaning of Abstract Concepts Differently from Humans

Odysseas S. Chlapanis, Orfeas Menis Mastromichalakis, Christos H. Papadimitriou

Abstract concepts - justice, theory, availability - have no single perceivable referent; in the human brain, their meaning emerges from a web of experiences, affect, and social con…

cs.CL2026

Explain the Flag: Contextualizing Hate Speech Beyond Censorship

Jason Liartis, Eirini Kaldeli, Lambrini Gyftokosta +2

Hate, derogatory, and offensive speech remains a persistent challenge in online platforms and public discourse. While automated detection systems are widely used, most focus on cen…

cs.SE2026

Terminal-Bench: Benchmarking Agents on Hard, Realistic Tasks in Command Line Interfaces

Mike A. Merrill, Alexander G. Shaw, Nicholas Carlini +82

AI agents may soon become capable of autonomously completing valuable, long-horizon tasks in diverse domains. Current benchmarks either do not measure real-world tasks, or are not…

cs.CL2025

GAMBIT+: A Challenge Set for Evaluating Gender Bias in Machine Translation Quality Estimation Metrics

Giorgos Filandrianos, Orfeas Menis Mastromichalakis, Wafaa Mohammed +2

Gender bias in machine translation (MT) systems has been extensively documented, but bias in automatic quality estimation (QE) metrics remains comparatively underexplored. Existing…

cs.CL2025

Assumed Identities: Quantifying Gender Bias in Machine Translation of Gender-Ambiguous Occupational Terms

Orfeas Menis Mastromichalakis, Giorgos Filandrianos, Maria Symeonaki +1

Machine Translation (MT) systems frequently encounter gender-ambiguous occupational terms, where they must assign gender without explicit contextual cues. While individual translat…

cs.CL2025

Don't Erase, Inform! Detecting and Contextualizing Harmful Language in Cultural Heritage Collections

Orfeas Menis Mastromichalakis, Jason Liartis, Kristina Rose +2

Cultural Heritage (CH) data hold invaluable knowledge, reflecting the history, traditions, and identities of societies, and shaping our understanding of the past and present. Howev…