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Josh Alman

Algebraic Methods In Algorithm Design Computational Complexity Theory Algebraic Complexity Theoretical Computer Science
Columbia University Department of Computer Science

About

I’m an Associate Professor of Computer Science at Columbia, and a member of the Theory Group. I work on algorithm design and complexity theory, and I especially like using algebraic tools to solve problems throughout computer science. I was previously a Rabin Postdoc in Theoretical Computer Science at Harvard. Before that, I completed my PhD in Computer Science at MIT, advised by Ryan Williams and Virginia Vassilevska Williams. I spent the first half of grad school at Stanford until I moved to MIT with my advisors.

Research Performance Summary

57
Total Papers
2177
Total Citations
20
H-Index
2015-2026
Active Research Span

First Recorded Paper

Probabilistic polynomials and hamming nearest neighbors

Year: 2015

Citations: 153

Venue: 2015 IEEE 56th Annual Symposium on Foundations of Computer Science

Latest Recorded Paper

Every Bit Counts: A Theoretical Study of Precision-Expressivity Tradeoffs in Quantized Transformers

Year: 2026

Citations: 0

Venue: arXiv preprint arXiv:2602.02707

Last 10 Years Publication Activity

This timeline shows the professor's yearly publication activity.

2026
2
2025
12
2024
7
2023
8
2022
3
2021
3
2020
6
2019
5
2018
4
2017
3
2016
1

Publication Venues and Collaboration

Journal, Conference, and Book Publication Breakdown

Conference 24
Journal 5
Book 0

Top Coauthors

Alman Williams Song

Research Impact by Period

2025-2026

Period Stats
Papers 14
Citations 216
Avg. Citations / Paper 15.4
H-Index 4

2020-2024

Period Stats
Papers 27
Citations 1403
Avg. Citations / Paper 52
H-Index 12

2015-2019

Period Stats
Papers 16
Citations 558
Avg. Citations / Paper 34.9
H-Index 9

Contact and Professional Links

Contact Information

josh@cs.columbia.edu

Detected Research Keywords

Faster Matrix Multiplication Fine Grained Complexity Refined Laser Method Laser Method Faster Method Faster Matrix Rank Matrix Rigidity Approaches Matrix Multiplication Kernel Density Estimation Light Bulb Problem Faster Walsh Hadamard