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Many modern applications require real-time processing of large volumes of high-speed data. Such data processing needs can be modeled as a streaming computation. A streaming computation is specified as a dataflow graph that exposes multiple…

数据库 · 计算机科学 2018-04-02 Guna Prasaad , G. Ramalingam , Kaushik Rajan

We present an algorithm that exploits quantum parallelism to simulate randomness in a quantum system. In our scheme, all possible realizations of the random parameters are encoded quantum mechanically in a superposition state of an…

其他凝聚态物理 · 物理学 2009-11-11 B. Paredes , F. Verstraete , J. I. Cirac

Inspired by recent successes with parallel optimization techniques for solving Boolean satisfiability, we investigate a set of strategies and heuristics that aim to leverage parallel computing to improve the scalability of neural network…

计算机科学中的逻辑 · 计算机科学 2020-08-24 Haoze Wu , Alex Ozdemir , Aleksandar Zeljić , Ahmed Irfan , Kyle Julian , Divya Gopinath , Sadjad Fouladi , Guy Katz , Corina Pasareanu , Clark Barrett

The matricized-tensor times Khatri-Rao product (MTTKRP) is the computational bottleneck for algorithms computing CP decompositions of tensors. In this paper, we develop shared-memory parallel algorithms for MTTKRP involving dense tensors.…

分布式、并行与集群计算 · 计算机科学 2017-08-31 Koby Hayashi , Grey Ballard , Jeffrey Jiang , Michael Tobia

Task-based programming models have demonstrated their efficiency in the development of scientific applications on modern high-performance platforms. They allow delegation of the management of parallelization to the runtime system (RS),…

分布式、并行与集群计算 · 计算机科学 2019-03-20 Bérenger Bramas

Integer factorization is one of the vital algorithms discussed as a part of analysis of any black-box cipher suites where the cipher algorithm is based on number theory. The origin of the problem is from Discrete Logarithmic Problem which…

分布式、并行与集群计算 · 计算机科学 2013-05-21 Anjan K. Koundinya , Harish G. , Srinath N. K. , Raghavendra G. E. , Pramod Y. V. , Sandeep R. , Punith Kumar G

This paper advocates for an intertwined design of the dense linear algebra software stack that breaks down the strict barriers between the high-level, blocked algorithms in LAPACK (Linear Algebra PACKage) and the low-level,…

分布式、并行与集群计算 · 计算机科学 2023-05-01 Héctor Martínez , Sandra Catalán , Francisco D. Igual , José R. Herrero , Rafael Rodríguez-Sánchez , Enrique S. Quintana-Ortí

This paper studies parallelization schemes for stochastic Vector Quantization algorithms in order to obtain time speed-ups using distributed resources. We show that the most intuitive parallelization scheme does not lead to better…

机器学习 · 统计学 2012-05-14 Matthieu Durut , Benoît Patra , Fabrice Rossi

We present a novel parallelisation scheme that simplifies the adaptation of learning algorithms to growing amounts of data as well as growing needs for accurate and confident predictions in critical applications. In contrast to other…

机器学习 · 计算机科学 2018-10-09 Michael Kamp , Mario Boley , Olana Missura , Thomas Gärtner

In the recent years it can be observed increasing popularity of parallel processing using multi-core processors, local clusters, GPU and others. Moreover, currently one of the main requirements the IT users is the reduction of maintaining…

分布式、并行与集群计算 · 计算机科学 2016-04-05 Łukasz P. Olech , Jan Kwiatkowski

Partitioning a graph into blocks of "roughly equal" weight while cutting only few edges is a fundamental problem in computer science with a wide range of applications. In particular, the problem is a building block in applications that…

数据结构与算法 · 计算机科学 2021-05-06 Lars Gottesbüren , Tobias Heuer , Peter Sanders , Christian Schulz , Daniel Seemaier

Optimistic parallelization is a promising approach for the parallelization of irregular algorithms: potentially interfering tasks are launched dynamically, and the runtime system detects conflicts between concurrent activities, aborting and…

编程语言 · 计算机科学 2012-06-28 Francesco Versaci , Keshav Pingali

Matrix multiplication is a fundamental computation in many scientific disciplines. In this paper, we show that novel fast matrix multiplication algorithms can significantly outperform vendor implementations of the classical algorithm and…

分布式、并行与集群计算 · 计算机科学 2018-01-08 Austin R. Benson , Grey Ballard

In this paper we present a novel algorithm developed for computing the QR factorisation of extremely ill-conditioned tall-and-skinny matrices on distributed memory systems. The algorithm is based on the communication-avoiding CholeskyQR2…

分布式、并行与集群计算 · 计算机科学 2024-05-08 Nenad Mijić , Abhiram Kaushik , Davor Davidović

This paper proposes a parallel approach for the Vector Quantization (VQ) problem in image processing. VQ deals with codebook generation from the input training data set and replacement of any arbitrary data with the nearest codevector. Most…

计算机视觉与模式识别 · 计算机科学 2009-10-27 Rajashekar Annaji , Shrisha Rao

We present three methods for distributed memory parallel inverse factorization of block-sparse Hermitian positive definite matrices. The three methods are a recursive variant of the AINV inverse Cholesky algorithm, iterative refinement, and…

数值分析 · 数学 2024-12-20 Anton G. Artemov , Elias Rudberg , Emanuel H. Rubensson

A method is presented for parallelizing the computation of solutions to discrete-time, linear-quadratic, finite-horizon optimal control problems, which we will refer to as LQR problems. This class of problem arises frequently in robotic…

最优化与控制 · 数学 2018-09-18 Forrest Laine , Claire Tomlin

Quantum computation holds the promise of solving computational problems which are believed to be classically intractable. However, in practice, quantum devices are still limited by their relatively short coherence times and imperfect…

量子物理 · 物理学 2023-12-22 Sagar Silva Pratapsi , Diogo Cruz

This paper presents the design and analysis of parallel approximation algorithms for facility-location problems, including $\NC$ and $\RNC$ algorithms for (metric) facility location, $k$-center, $k$-median, and $k$-means. These problems…

数据结构与算法 · 计算机科学 2010-06-11 Guy E. Blelloch , Kanat Tangwongsan

Matrix Factorization (MF) has been widely applied in machine learning and data mining. A large number of algorithms have been studied to factorize matrices. Among them, stochastic gradient descent (SGD) is a commonly used method.…

分布式、并行与集群计算 · 计算机科学 2020-06-30 Yuanhang Yu , Dong Wen , Ying Zhang , Xiaoyang Wang , Wenjie Zhang , Xuemin Lin