Negar Arabzadeh

Postdoctoral Fellow at UC Berkeley

This is Negar Arabzadeh. I am a postdoctoral researcher at UC Berkeley, working with Professor Matei Zaharia. I completed my PhD at the University of Waterloo, where I was advised by Dr. Charles Clarke. My research lies at the intersection of information retrieval and the evaluation of—and with—large language models (LLMs) in information access systems.

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August 2025

🪑I will be serving as Workshop chair for ECIR 2026.

July 2025

✈️I attended SIGIR in Padua,Italy.

🏅I won best reviewer award at SIGIR.

June 2025

🪑I will be serving as Publicity chair for CHIIR 2026.

🏆 I was honored to receive SIGIR student travel grant.

May 2025

🎓 I have successfully defended my PhD!

April 2025

🌟I moved to California and officially started my postdoc at UC Berkeley — can’t believe this dream is now reality!

📚Four papers got accepted in SIGIR:

Benchmarking LLM-based Relevance Judgment Methods
- w/ Charles Clarke
VAP3: Variation-Aware Prompt Performance Prediction
- w/ Ebrahim Bagheri

A Human-AI Comparative Analysis of Prompt Sensitivity in LLM-Based Relevance Judgment
- w/ Charles Clarke
IDAT: A Multi-Modal Dataset and Toolkit for Building and Evaluating Interactive Task-Solving Agents
- w/ Shrestha Mohanty, Andrea Tupini, Yuxuan Sun, Alexey Skrynnik, Artem Zholus, Marc-Alexandre Cote and Julia Kiseleva

December 2024

✈️I attended SIGIR-AP in Tokyo,Japan.

We presented two papers and a tutorial.

✈️I attended ACML in Hanoi,Vietnam.

We presented two papers.

📚Two papers got accepted in ECIR:

exHarmony: Authorship and Citations for Benchmarking the Reviewer Assignment Problem
- w/Sajad Ebrahimi, Sara Salamat, Mahdi Bashari and Ebrahim Bagheri
Benchmarking Prompt Sensitivity in Large Language Models
- w/ Amirhosein Razavi, Mina Soltangheis, Sara Salamat, Morteza Zihayat and Ebrahim Bagheri