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Adversarial data examples have drawn significant attention from the machine learning and security communities. A line of work on tackling adversarial examples is certified robustness via randomized smoothing that can provide a theoretical…

机器学习 · 计算机科学 2021-08-24 Haowen Lin , Jian Lou , Li Xiong , Cyrus Shahabi

Besides the intrinsic noise resilience property, nonadiabatic geometric phases are of the fast evolution nature, and thus can naturally be used in constructing quantum gates with excellent performance, i.e., the so-called nonadiabatic…

量子物理 · 物理学 2022-08-03 Ming-Jie Liang , Zheng-Yuan Xue

Solving linear systems of equations is essential for many problems in science and technology, including problems in machine learning. Existing quantum algorithms have demonstrated the potential for large speedups, but the required quantum…

量子物理 · 物理学 2019-12-17 Hsin-Yuan Huang , Kishor Bharti , Patrick Rebentrost

This paper focuses on robust stability and $H_\infty$ performance analyses of hybrid continuous/discrete time linear multi-rate control systems in the presence of parametric uncertainties. These affect the continuous-time plant in a…

系统与控制 · 电气工程与系统科学 2024-07-08 Jean-Marc Biannic , Clément Roos , Christelle Cumer

Variational quantum circuits (VQCs) are an essential tool in applying noisy intermediate-scale quantum computers to practical problems. VQCs are used as a central component in many algorithms, for example, in quantum machine learning,…

量子物理 · 物理学 2025-12-18 Joona V. Pankkonen , Lauri Ylinen , Matti Raasakka , Ilkka Tittonen

The hope of the quantum computing field is that quantum architectures are able to scale up and realize fault-tolerant quantum computing. Due to engineering challenges, such ''cheap'' error correction may be decades away. In the meantime, we…

量子物理 · 物理学 2025-02-17 Rutuja Kshirsagar , Amara Katabarwa , Peter D. Johnson

This work presents algorithms for the efficient implementation of discontinuous Galerkin methods with explicit time stepping for acoustic wave propagation on unstructured meshes of quadrilaterals or hexahedra. A crucial step towards…

数值分析 · 计算机科学 2019-03-06 Svenja Schoeder , Katharina Kormann , Wolfgang Wall , Martin Kronbichler

Fastness and robustness are both critical in the implementation of high-fidelity gates for quantum computation, but in practice, a trade-off has to be made between them. In this paper, we investigate the underlying robust time-optimal…

量子物理 · 物理学 2023-09-12 Xi Cao , Jiangyu Cui , Man Hong Yung , Re-Bing Wu

Solving large, sparse linear systems is a fundamental workload in scientific computing and engineering simulations, often dominating runtime and energy consumption in high-performance computing (HPC) applications. In this work, we explore…

计算工程、金融与科学 · 计算机科学 2026-04-30 Dan Gluck , Yotam Mimran , Andrey Karenskih , Talya Vaknin , Omri Wolf , Ruti Ben-Shlomi , Johannes Gebert

In this paper, by regarding the two-subspace Kaczmarz method [20] as an alternated inertial randomized Kaczmarz algorithm we present a new convergence rate estimate which is shown to be better than that in [20] under a mild condition.…

数值分析 · 数学 2023-06-16 Songnian He , Ziting Wang , Qiao-Li Dong

Integer linear programming (ILP) remains computationally challenging due to its NP-complete nature despite its central role in scheduling, logistics, and design optimization. We introduce a fully quantum Metropolis-Hastings algorithm for…

量子物理 · 物理学 2026-02-16 Gabriel Escrig , Roberto Campos , M. A. Martin-Delgado

Solving evolutionary equations in a parallel-in-time manner is an attractive topic and many algorithms are proposed in recent two decades. The algorithm based on the block $\alpha$-circulant preconditioning technique has shown promising…

数值分析 · 数学 2021-04-15 Shu-Lin Wu , Tao Zhou , Zhi Zhou

If learning methods are to scale to the massive sizes of modern datasets, it is essential for the field of machine learning to embrace parallel and distributed computing. Inspired by the recent development of matrix factorization methods…

机器学习 · 计算机科学 2013-10-29 Lester Mackey , Ameet Talwalkar , Michael I. Jordan

We consider the efficient numerical solution of coupled dynamical systems, consisting of a small nonlinear part and a large linear time invariant part, possibly stemming from spatial discretization of an underlying partial differential…

数值分析 · 数学 2018-11-27 Herbert Egger , Vsevolod Shashkov , Kersten Schmidt

Quadratic and Linear Discriminant Analysis (QDA/LDA) are the most often applied classification rules under normality. In QDA, a separate covariance matrix is estimated for each group. If there are more variables than observations in the…

统计方法学 · 统计学 2016-12-26 Stéphanie Aerts , Ines Wilms

In this article, square-root formulations of the statistical linear regression filter and smoother are developed. Crucially, the method uses QR decompositions rather than Cholesky downdates. This makes the method inherently more numerically…

统计方法学 · 统计学 2024-06-19 Filip Tronarp

Quantum Hamiltonian Descent (QHD) is a continuous optimization algorithm based on simulating a time-dependent quantum Hamiltonian whose potential energy encodes the objective function and whose kinetic energy promotes exploration through…

量子物理 · 物理学 2026-05-13 Zeguan Wu , Mingze Li , Muqing Zheng , Meng Wang , Junyu Liu , Samuel Stein , Ang Li , Yousu Chen , Chenxu Liu

The realization of scalable fault-tolerant quantum computing is expected to hinge on quantum error-correcting codes. In the quest for more efficient quantum fault tolerance, a critical code parameter is the weight of measurements that…

量子物理 · 物理学 2025-02-21 Austin Yubo He , Zi-Wen Liu

Recent research has demonstrated that quantum computers can solve certain types of problems substantially faster than the known classical algorithms. These problems include factoring integers and certain physics simulations. Practical…

量子物理 · 物理学 2009-10-30 Emanuel Knill , Raymond Laflamme , Wojciech H. Zurek

The paper proposes a novel hybrid method for solving equilibrium problems and fixed point problems. By constructing specially cutting-halfspaces, in this algorithm, only an optimization program is solved at each iteration without the…

最优化与控制 · 数学 2015-10-30 Dang Van Hieu