activity
20152025
most citedLarge-scale Log-determinant Computation through Stochastic Chebyshev Expansions

32 citations · 79 across the 17 of their papers we have counts for

collaborators

17 papers

cs.CL2025

Mamba Drafters for Speculative Decoding

Daewon Choi, Seunghyuk Oh, Saket Dingliwal +9

Speculative decoding has emerged as a promising approach to accelerating large language model (LLM) generation using a fast drafter while maintaining alignment with the target mode…

cs.LG2024

QJL: 1-Bit Quantized JL Transform for KV Cache Quantization with Zero Overhead

Amir Zandieh, Majid Daliri, Insu Han

Serving LLMs requires substantial memory due to the storage requirements of Key-Value (KV) embeddings in the KV cache, which grows with sequence length. An effective approach to co…

cs.LG2023★ 9 cited

HyperAttention: Long-context Attention in Near-Linear Time

Insu Han, Rajesh Jayaram, Amin Karbasi +3

We present an approximate attention mechanism named HyperAttention to address the computational challenges posed by the growing complexity of long contexts used in Large Language M…

cs.LG2023★ 5 cited

KDEformer: Accelerating Transformers via Kernel Density Estimation

Amir Zandieh, Insu Han, Majid Daliri +1

Dot-product attention mechanism plays a crucial role in modern deep architectures (e.g., Transformer) for sequence modeling, however, naïve exact computation of this model incurs q…

cs.LG2022★ 4 cited

Fast Neural Kernel Embeddings for General Activations

Insu Han, Amir Zandieh, Jaehoon Lee +3

Infinite width limit has shed light on generalization and optimization aspects of deep learning by establishing connections between neural networks and kernel methods. Despite thei…

cs.LG2022★ 2 cited

Scalable MCMC Sampling for Nonsymmetric Determinantal Point Processes

Insu Han, Mike Gartrell, Elvis Dohmatob +1

A determinantal point process (DPP) is an elegant model that assigns a probability to every subset of a collection of items. While conventionally a DPP is parameterized by a sy…

math.NA2022

Near Optimal Reconstruction of Spherical Harmonic Expansions

Amir Zandieh, Insu Han, Haim Avron

We propose an algorithm for robust recovery of the spherical harmonic expansion of functions defined on the d-dimensional unit sphere using a near-optimal number…

cs.LG2022

Random Gegenbauer Features for Scalable Kernel Methods

Insu Han, Amir Zandieh, Haim Avron

We propose efficient random features for approximating a new and rich class of kernel functions that we refer to as Generalized Zonal Kernels (GZK). Our proposed GZK family, genera…

cs.LG2022

Scalable Sampling for Nonsymmetric Determinantal Point Processes

Insu Han, Mike Gartrell, Jennifer Gillenwater +2

A determinantal point process (DPP) on a collection of items is a model, parameterized by a symmetric kernel matrix, that assigns a probability to every subset of those items.…

cs.LG2021★ 2 cited

Scaling Neural Tangent Kernels via Sketching and Random Features

Amir Zandieh, Insu Han, Haim Avron +3

The Neural Tangent Kernel (NTK) characterizes the behavior of infinitely-wide neural networks trained under least squares loss by gradient descent. Recent works also report that NT…

cs.LG2021

Random Features for the Neural Tangent Kernel

Insu Han, Haim Avron, Neta Shoham +2

The Neural Tangent Kernel (NTK) has discovered connections between deep neural networks and kernel methods with insights of optimization and generalization. Motivated by this, rece…

cs.LG2020★ 4 cited

Scalable Learning and MAP Inference for Nonsymmetric Determinantal Point Processes

Mike Gartrell, Insu Han, Elvis Dohmatob +2

Determinantal point processes (DPPs) have attracted significant attention in machine learning for their ability to model subsets drawn from a large item collection. Recent work sho…

cs.LG2019★ 4 cited

Polynomial Tensor Sketch for Element-wise Function of Low-Rank Matrix

Insu Han, Haim Avron, Jinwoo Shin

This paper studies how to sketch element-wise functions of low-rank matrices. Formally, given low-rank matrix A = [Aij] and scalar non-linear function f, we aim for finding an appr…

cs.LG2018★ 4 cited

Stochastic Chebyshev Gradient Descent for Spectral Optimization

Insu Han, Haim Avron, Jinwoo Shin

A large class of machine learning techniques requires the solution of optimization problems involving spectral functions of parametric matrices, e.g. log-determinant and nuclear no…

cs.DM2017★ 2 cited

Faster Greedy MAP Inference for Determinantal Point Processes

Insu Han, Prabhanjan Kambadur, Kyoungsoo Park +1

Determinantal point processes (DPPs) are popular probabilistic models that arise in many machine learning tasks, where distributions of diverse sets are characterized by matrix det…

cs.DS2016★ 11 cited

Approximating the Spectral Sums of Large-scale Matrices using Chebyshev Approximations

Insu Han, Dmitry Malioutov, Haim Avron +1

Computation of the trace of a matrix function plays an important role in many scientific computing applications, including applications in machine learning, computational physics (…

cs.DS2015★ 32 cited

Large-scale Log-determinant Computation through Stochastic Chebyshev Expansions

Insu Han, Dmitry Malioutov, Jinwoo Shin

Logarithms of determinants of large positive definite matrices appear ubiquitously in machine learning applications including Gaussian graphical and Gaussian process models, partit…