Anastasios N. Angelopoulos

CEO of LMArena; UC Berkeley PhD on uncertainty quantification and statistical evaluation methods.

Role: CEO
Currently at: LMArena
Twitter: twitter.com/ml_angelopoulos
GitHub: github.com/aangelopoulos
Scholar: scholar.google.com/citations
Papers: 2

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Attribution

Affiliations & profile: scholar.google.com/citations

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2papers·1eval contribs

Authored papers

Chatbot Arena: An Open Platform for Evaluating LLMs by Human Preference

ICML

2024

Style Control: Does Style Matter? A Closer Look at Chatbot Arena

blog

2024

Eval contributions

Arena-Hard

LMArena

500 challenging real-user prompts mined from Chatbot Arena and graded by a strong LLM judge for pairwise win rate.

ActiveInstruction FollowingLLM Judging

Affiliations

Currently at

LMArena

CEO · eval co

Previously

University of California, Berkeleyuniversity lab

Frequent co-authors

from 2 papers

Tianle Li

research-scientist

2 shared papers

Wei-Lin Chiang

co-founder / President

2 shared papers

Banghua Zhu

professor

1 shared paper

Dacheng Li

grad-student

1 shared paper

Evan Frick

research-scientist

1 shared paper

Hao Zhang

professor

1 shared paper

Ion Stoica

professor / co-founder

1 shared paper

Joseph E. Gonzalez

professor

1 shared paper

Lianmin Zheng

grad-student

1 shared paper

Lisa Dunlap

grad-student

1 shared paper