activity
20182026
most citedDirected Random Geometric Graphs

9 citations · 14 across the 5 of their papers we have counts for

collaborators

8 papers

cs.LG2026

DynMuon: A Dynamic Spectral Shaping View of Muon

Fangzhou Wu, Rikhav Shah, Sandeep Silwal +1

In recent years, Muon has emerged as the dominant method for training large language models, and transformers more broadly. The essential difference, when compared to standard grad…

cs.DS2025

Even Faster Kernel Matrix Linear Algebra via Density Estimation

Rikhav Shah, Sandeep Silwal, Haike Xu

This paper studies the use of kernel density estimation (KDE) for linear algebraic tasks involving the kernel matrix of a collection of data points in . In particu…

math.CO2022

Achieving the Highest Possible Elo Rating

Rikhav Shah

Elo rating systems measure the approximate skill of each competitor in a game or sport. A competitor's rating increases when they win and decreases when they lose. Increasing one's…

math.CO2021

A Spectral Approach to Polytope Diameter

Hariharan Narayanan, Rikhav Shah, Nikhil Srivastava

We prove upper bounds on the graph diameters of polytopes in two settings. The first is a worst-case bound for polytopes defined by integer constraints in terms of the height of th…

cs.DS2020

Smoothed analysis of the condition number under low-rank perturbations

Rikhav Shah, Sandeep Silwal

Let be an arbitrary by matrix of rank . We study the condition number of plus a \emph{low-rank} perturbation where are by random Gaussian…

math.CO2020

Determinants of binary matrices achieve every integral value up to

Rikhav Shah

This work shows that the smallest natural number that is not the determinant of some binary matrix is at least for . That same quantity natura…

cs.LG2019★ 5 cited

Using Dimensionality Reduction to Optimize t-SNE

Rikhav Shah, Sandeep Silwal

t-SNE is a popular tool for embedding multi-dimensional datasets into two or three dimensions. However, it has a large computational cost, especially when the input data has many d…

cs.SI2018★ 9 cited

Directed Random Geometric Graphs

Jesse Michel, Sushruth Reddy, Rikhav Shah +2

Many real-world networks are intrinsically directed. Such networks include activation of genes, hyperlinks on the internet, and the network of followers on Twitter among many other…