Hi there! I'm Navid

I'm a third-year PhD student in the SysNet group at the University of Toronto. I'm a member of the ORCA Lab, where I have the pleasure of being supervised by Prof. Niv Dayan. I design data structures tailored to database systems, focusing on randomized and sketching data structures. I also optimize my data structures to leverage the power and speed of modern hardware to the fullest, making them lightning-fast!

My research interests include:
Sketching and Streaming Algorithms
Randomized Algorithms
Databases and Data Intensive Systems
High Performance Computing

Selected Publications

Aeris Filter: A Strongly and Monotonically Adaptive Range Filter

Y. Chesetti N. Eslami H. Zhang N. Dayan P. Pandey

SIGMOD 2026

Diva: Dynamic Range Filter for Var-Length Keys and Queries

N. Eslami I. O. Bercea N. Dayan

VLDB 2025

Best Research Paper

Memento Filter: A Fast, Dynamic, and Robust Range Filter

N. Eslami N. Dayan

SIGMOD 2025

Rethinking RAFT for Efficient Optical Flow

N. Eslami F. Arefi A.M. Mansourian S. Kasaei

MVIP 2024

Best Research Paper

Blacksmith: Fast Adversarial Training of Vision Transformers via a Mixture of Single-step and Multi-step Methods

M. Salmani A. Dehghanpour Farashah M. Azizmalayeri M. Amiri N. Eslami M.T. Manzuri M.H. Rohban

Arxiv 2023

Locality in Online, Dynamic, Sequential, and Distributed Graph Algorithms

A. Akbari N. Eslami H. Lievonen D. Melnyk J. Särkijärvi J. Suomela

ICALP 2023

Academic Background

PhD Computer Science (Computer Systems and Networks Group)

University of Toronto, Toronto, Canada

Supervised by Prof. Niv Dayan

Sep 2023-Jun 2029

Notable Achievements

Jane Street Graduate Research Fellowship 2026
MongoDB PhD Fellowship 2026

Visiting Researcher Space-Efficient and Approximate Data Structures

Basic Algorithms Research Copenhagen (BARC), Copenhagen, Denmark

Supervised by Prof. Rasmus Pagh, Prof. Ioana O. Bercea

April 2025-May 2025

BSc Computer Engineering

Sharif University of Technology, Tehran, Iran

Sep 2019-Jun 2023

Notable Achievements

GPA: 19.82/20.00
Class Rank: 2nd
ACM-ICPC December 2020 West Asia Regionals Silver Medalist
ACM-ICPC December 2019 West Asia Regionals Gold Medalist

Summer Internship Theory of Distributed Computing

Aalto University, Espoo, Finland

Supervised by Prof. Jukka Suomela, Prof. Jara Uitto

Jul 2022-Sep 2022

Teaching Experience

CSC2525: Research Topics in Database Management

University of Toronto

Taught by Prof. Niv Dayan

Head TA

Jan 2026-May 2026

CSC443/CSC2234: Database System Technology

University of Toronto

Taught by Prof. Niv Dayan

Tutorial TA

Sep 2025-Dec 2025

CSC2525: Research Topics in Database Management

University of Toronto

Taught by Prof. Niv Dayan

Jan 2025-May 2025

CSC443/CSC2234: Database System Technology

University of Toronto

Taught by Prof. Niv Dayan

Sep 2024-Dec 2024

CSC263H1F: Data Structures and Analysis

University of Toronto

Taught by Prof. Sam Toueg

Tutorial TA

Sep 2024-Dec 2024

CSC263H1F: Data Structures and Analysis

University of Toronto

Taught by Prof. Bahar Aameri

Tutorial TA

Jan 2024-May 2024

CSC263H1F: Data Structures and Analysis

University of Toronto

Taught by Prof. Sam Toueg

Tutorial TA

Sep 2023-Dec 2023

Data Structures and Algorithms

Sharif University of Technology

Taught by Prof. Mahdi Safarnejad-Boroujeni

Practical Assignment Manager

Sep 2022-Jan 2023

Competitive Programming

Aalto University

Taught by Prof. Jukka Suomela

Problem and Test Setter

Jul 2022-Sep 2023

Data Structures and Algorithms

Sharif University of Technology

Taught by Prof. Mahdi Safarnejad-Boroujeni

Practical Assignment Designer

Sep 2021-Mar 2022

Data Structures and Algorithms

Sharif University of Technology

Taught by Prof. Masoud Seddighin

Prepared Video Material

Sep 2021-

Fundamentals of Programming

Sharif University of Technology

Taught by Prof. Fakoori

Practical Assignment Designer

Oct 2020-Jan 2021