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Round-off errors arising from the difference between real numbers and their floating-point representation cause the control flow of conditional floating-point statements to deviate from the ideal flow of the real-number computation. This…

编程语言 · 计算机科学 2018-12-04 Laura Titolo , Cesar A. Muñoz , Marco A. Feliu , Mariano M. Moscato

Compact models often lose the structure of their embedding space. The issue shows up when the capacity is tight or the data spans several languages. Such collapse makes it difficult for downstream tasks to build on the resulting…

计算与语言 · 计算机科学 2026-01-05 Chung-Wei Victor Yuan

Nonconvex and nonsmooth optimization problems are frequently encountered in much of statistics, business, science and engineering, but they are not yet widely recognized as a technology in the sense of scalability. A reason for this…

最优化与控制 · 数学 2018-01-19 Bo Jiang , Tianyi Lin , Shiqian Ma , Shuzhong Zhang

A major challenge for the realisation of useful universal quantum computers is achieving high fidelity two-qubit entangling gate operations. However, calibration errors can affect the quantum gate operations and limit their fidelity. To…

The complexity of software in embedded systems has increased significantly over the last years so that software verification now plays an important role in ensuring the overall product quality. In this context, SAT-based bounded model…

软件工程 · 计算机科学 2009-11-20 Lucas Cordeiro , Bernd Fischer , Joao Marques-Silva

Modern graphics computing units (GPUs) are designed and optimized to perform highly parallel numerical calculations. This parallelism has enabled (and promises) significant advantages, both in terms of energy performance and calculation. In…

硬件体系结构 · 计算机科学 2021-10-26 Quentin Gallouédec

In this paper we look at isometry properties of random matrices. During the last decade these properties gained a lot attention in a field called compressed sensing in first place due to their initial use in \cite{CRT,CT}. Namely, in…

最优化与控制 · 数学 2015-07-17 Mihailo Stojnic

Error bounds, which refer to inequalities that bound the distance of vectors in a test set to a given set by a residual function, have proven to be extremely useful in analyzing the convergence rates of a host of iterative methods for…

最优化与控制 · 数学 2015-12-14 Zirui Zhou , Anthony Man-Cho So

The typical processors used for scientific computing have fixed-width data-paths. This implies that mathematical libraries were specifically developed to target each of these fixed precisions (binary16, binary32, binary64). However, to…

数学软件 · 计算机科学 2020-05-07 David Defour , Pablo de Oliveira Castro , Matei Istoan , Eric Petit

Model predictive control (MPC) is widely used in industries but implementing it poses challenges due to hardware or time constraints. A promising solution is to approximate the MPC policy using function approximators like neural networks.…

最优化与控制 · 数学 2026-05-08 Chenchen Zhou , Yi Cao , Shuang-hua Yang

We consider linear dynamical systems under floating-point rounding. In these systems, a matrix is repeatedly applied to a vector, but the numbers are rounded into floating-point representation after each step (i.e., stored as a…

计算机科学中的逻辑 · 计算机科学 2023-01-30 Engel Lefaucheux , Joël Ouaknine , David Purser , Mohammadamin Sharifi

During recent years the field of fine-grained complexity has bloomed to produce a plethora of results, with both applied and theoretical impact on the computer science community. The cornerstone of the framework is the notion of…

计算复杂性 · 计算机科学 2019-02-15 Elli Anastasiadi , Antonis Antonopoulos , Aris Pagourtzis , Stavros Petsalakis

Digital controllers have several advantages with respect to their flexibility and design's simplicity. However, they are subject to problems that are not faced by analog controllers. In particular, these problems are related to the finite…

系统与控制 · 计算机科学 2014-03-21 Iury Bessa , Renato Abreu , João Edgar Filho , Lucas Cordeiro

The current language for CNC programming is G-code which dates from the beginning of the eighties with the norm ISO 6983. With the new technologies, G-code becomes obsolete. It presents drawbacks that create a rupture in the numerical chain…

经典物理 · 物理学 2009-05-20 Raphael Laguionie , Matthieu Rauch , Jean-Yves Hascoët

Most text-based information retrieval (IR) systems index objects by words or phrases. These discrete systems have been augmented by models that use embeddings to measure similarity in continuous space. But continuous-space models are…

信息检索 · 计算机科学 2018-11-21 Daniel Gillick , Alessandro Presta , Gaurav Singh Tomar

We study the performance of quantum error correction codes (QECCs) under the detection-induced coherent error due to the imperfectness of practical implementations of stabilizer measurements, after running a quantum circuit. Considering the…

量子物理 · 物理学 2022-02-25 Qinghong Yang , Dong E. Liu

Fixed-point iterations are at the heart of numerical computing and are often a computational bottleneck in real-time applications that typically need a fast solution of moderate accuracy. We present neural fixed-point acceleration which…

机器学习 · 计算机科学 2021-07-26 Shobha Venkataraman , Brandon Amos

If a set $\mathbb{G}$ of quantum gates is countable, then the operators that can be exactly represented by a circuit over $\mathbb{G}$ form a strict subset of the collection of all unitary operators. When $\mathbb{G}$ is universal, one…

量子物理 · 物理学 2023-05-16 M. Amy , M. Crawford , A. N. Glaudell , M. L. Macasieb , S. S. Mendelson , N. J. Ross

Matrix multiplication over the real field constitutes a foundational operation in the training of deep learning models, serving as a computational cornerstone for both forward and backward propagation processes. However, the presence of…

信息论 · 计算机科学 2025-08-07 Hao Shi , Zhengyi Jiang , Zhongyi Huang , Bo Bai , Gong Zhang , Hanxu Hou

In this paper, we provide a performance analysis of a new class of serial concatenated convolutional codes (SCCC) where the inner encoder can be punctured beyond the unitary rate. The puncturing of the inner encoder is not limited to inner…

信息论 · 计算机科学 2007-07-13 Alexandre Graell i Amat , Guido Montorsi , Francesca Vatta
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