Fast quantum algorithm for attention computation

Y Gao, Z Song, X Yang, R Zhang - arXiv preprint arXiv:2307.08045, 2023 - arxiv.org
Large language models (LLMs) have demonstrated exceptional performance across a wide
range of tasks. These models, powered by advanced deep learning techniques, have …

Quantum speedups for stochastic optimization

A Sidford, C Zhang - Advances in Neural Information …, 2024 - proceedings.neurips.cc
We consider the problem of minimizing a continuous function given given access to a
natural quantum generalization of a stochastic gradient oracle. We provide two new …

Quantum algorithms for sampling log-concave distributions and estimating normalizing constants

AM Childs, T Li, JP Liu, C Wang… - Advances in Neural …, 2022 - proceedings.neurips.cc
Given a convex function $ f\colon\mathbb {R}^{d}\to\mathbb {R} $, the problem of sampling
from a distribution $\propto e^{-f (x)} $ is called log-concave sampling. This task has wide …

Quantum speedups of optimizing approximately convex functions with applications to logarithmic regret stochastic convex bandits

T Li, R Zhang - Advances in Neural Information Processing …, 2022 - proceedings.neurips.cc
We initiate the study of quantum algorithms for optimizing approximately convex functions.
Given a convex set $\mathcal {K}\subseteq\mathbb {R}^{n} $ and a function …

A sublinear-time quantum algorithm for approximating partition functions

A Cornelissen, Y Hamoudi - Proceedings of the 2023 Annual ACM-SIAM …, 2023 - SIAM
We present a novel quantum algorithm for estimating Gibbs partition functions in sublinear
time with respect to the logarithm of the size of the state space. This is the first speed-up of …

Quantum lower bounds for finding stationary points of nonconvex functions

C Zhang, T Li - International Conference on Machine …, 2023 - proceedings.mlr.press
Quantum computing is an emerging technology that has been rapidly advancing in the past
decades. In this paper, we conduct a systematic study of quantum lower bounds on finding …

Stochastic quantum sampling for non-logconcave distributions and estimating partition functions

G Ozgul, X Li, M Mahdavi, C Wang - arXiv preprint arXiv:2310.11445, 2023 - arxiv.org
We present quantum algorithms for sampling from non-logconcave probability distributions
in the form of $\pi (x)\propto\exp (-\beta f (x)) $. Here, $ f $ can be written as a finite sum $ f …

A Quantum Algorithm Framework for Discrete Probability Distributions with Applications to Rényi Entropy Estimation

X Wang, S Zhang, T Li - IEEE Transactions on Information …, 2024 - ieeexplore.ieee.org
Estimating statistical properties is fundamental in statistics and computer science. In this
paper, we propose a unified quantum algorithm framework for estimating properties of …

An improved volumetric metric for quantum computers via more representative quantum circuit shapes

K Miller, C Broomfield, A Cox, J Kinast… - arXiv preprint arXiv …, 2022 - arxiv.org
In this work, we propose a generalization of the current most widely used quantum
computing hardware metric known as the quantum volume. The quantum volume specifies a …

An introduction to quantum computing for statisticians and data scientists

A Lopatnikova, MN Tran, SA Sisson - arXiv preprint arXiv:2112.06587, 2021 - arxiv.org
Quantum computers promise to surpass the most powerful classical supercomputers when it
comes to solving many critically important practical problems, such as pharmaceutical and …