检索结果-南通市图书馆

Enhanced Acceleration for Generalized Nonconvex Low-Rank Matrix Learning

Chinese Journal of Electronics 2024年

作者： Hengmin ZHANG Jian yang wenli DU Bob ZHANG Zhiyuan ZHA Bihan wen School of Electrical and Electronic Engineering Nanyang Technological University School of computer science and Engineering Nanjing University of Science and Technology college of Information science and Engineering East China University of Science and Technology Department of Electrical and computer Engineering University of Macau

Matrix minimization techniques that employ the nuclear norm have gained recognition for their applicability in tasks like image inpainting, clustering, classification, and reconstruction. However, they come with inherent biases and computational burdens, especially when used to relax the rank function, making them less effective and efficient in real-world scenarios. To address these challenges, our research focuses on generalized nonconvex rank regularization problems in robust matrix completion (RMC), low-rank representation (LRR), and robust matrix regression (RMR). We introduce innovative approaches for effective and efficient low-rank matrix learning, grounded in generalized nonconvex rank relaxations inspired by various substitutes for the?0-norm relaxed functions. These relaxations allow us to more accurately capture low-rank structures. Our optimization strategy employs a nonconvex and multi-variable alternating direction method of multipliers (ADMM), backed by rigorous theoretical analysis for complexity and convergence. This algorithm iteratively updates blocks of variables, ensuring efficient convergence. Additionally, we incorporate the randomized singular value decomposition technique and/or other acceleration strategies to enhance the computational efficiency of our approach, particularly for large-scale constrained minimization problems. In conclusion, our experimental results across a variety of image vision-related application tasks unequivocally demonstrate the superiority of our proposed methodologies in terms of both efficacy and efficiency when compared to most other related learning methods.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Research of E-Commerce System Based on EJB for Manufacture Enterprise

引用

厦门大学学报（自然科学版） 2002年第S1期41卷 286-287页

作者： WEI Zhao-wen 1, LI Yong 2, SU Yi-dan 1 (1. computer & Information Engineering college, Guangxi university, N anning 530004, china 2. Business Administration college, Chongqing university, Chongqing 400044, Chi na)

During the popular and development in Internet, mor e and more EC systems are running on Internet. Manufacture enterprise establishes EC system, integrates the systems between enterprises replace the traditional MI S system. The manufacture enterprise will face some difficulties when it begins to establish EC system. In order to solve the difficulties, the EC system not on ly includes the functions which in general EC system, but also integrates ERP sy stem, manages the enterprise from three aspects: relationship between manufactur er and customers, enterprise resources, and supplying chain, and gives the manuf acturer more intelligent information. As the departments of enterprise exchange data very frequently, connect the sellers and suppliers by using Internet, the t raditional C/S architecture isn’t satisfied by present needs. It is the only wa y that uses Multi-tier architecture. EJB (Enterprise Java Bean) is a Multi-tier distributed architecture designed by SUN company. The Enterprise JavaBeans architecture is a component architecture for the development and development of component-based distributed business app lications. Applications written using the Enterprise JavaBeans architecture are scalable, transactional, and multi-user secure. These applications may be writt en once, and then deployed on any server platform that supports the Enterprise J avaBeans specification. There are many superiorities using EJB when design compu ter system. The EC System for Manufacture Enterprise is based on EJB architecture. We define four EJB containers, namely, CRM component, POM component, Knowledge Management component and ERP component. CRM EJBs take the form of managing the customer- supplier relationship, reducing the number of contracts the manufacturer must ma ke with the end customers. POM EJBs take the form of order processing activities . These order taking, order fulfillment, and managing the logistics and transpor tation involved in the physical movement of the

关键词： E-Commerce EJB CRM ERP

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

MULTISCALE SEGMENTATION OF SAR IMAGERY WITH BOOTSTRAP SAMPLING

MULTISCALE SEGMENTATION OF SAR IMAGERY WITH BOOTSTRAP SAMPLI...

引用

第七届国际信号处理会议

作者： TIAN Zheng1 wen Xian-Bin 2 3 LIN Wei 2 1 (Department of Mathematics and information science Northwestern Polytechnical university Xi’an china 710072) 2(college of computer Northwestern Ploytechnical university Xi’an china 710072) 3 (Shandong university of technology Zibo china 255049)

In this paper, the main focus is on application of Bootstrap method for segmentation of SAR imagery based on the multiscale dynamic model. Given an original SAR images, we randomly select a small r

关键词： Bootstrap sampling Multiscale autoregressive model SAR imagery segmentation

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

PRE-IMAGE ENTROPY OF NONAUTONOMOUS DYNAMICAL SYSTEMS

引用

Journal of Systems science & Complexity 2008年第3期21卷 441-445页

作者： Xianjiu HUANG Xi wen Fanping ZENG Department of Mathematics Nanchang University Nanchang 330031 China Department of computer Nanchang University Nanchang 330031 China Department of Mathematics Liuzhou Theachers College Liuzhou 545004 China

The authors define and study topological pre-image entropy for the non-autonomous discrete dynamical systems given by a sequence {fi}i=1^∞ of continuous self-maps of a compact topological space. The basic properties and the invariant with respect to equiconjugacy of pre-image entropy for the non-autonomous discrete dynamical systems are obtained.

关键词： Equiconjugacy non-autonomous pre-image entropy sequence of continuous self-maps

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

双准最佳二进阵列偶的研究

引用

通信学报 2003年第3期24卷 8-15页

作者：蒋挺赵晓群何文才侯蓝田燕山大学红外光纤与传感器研究所北京电子科技学院北京100070 河北工业大学信息学院北京电子科技学院

本文定义了一种新的最佳信号即双准最佳二进列偶,讨论了双准最佳二进阵列偶的变换性质;用计算机搜索出一些小体积的双准最佳二进阵列偶;并给出了构造双准与准最佳二进阵列偶的方法。

关键词：信息论准最佳二进阵列阵列偶信号理论

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

DeepCRBP:improved predicting function of circRNA-RBP binding sites with deep feature learning

引用

Frontiers of computer science 2024年第2期18卷 235-237页

作者： Zishan XU Linlin SONG Shichao LIU wen ZHANG college of Informatics Huazhong Agricultural UniversityWuhan 430070China

1 Introduction Recently,there is growing evidence that it is essential to predict the interactions between circRNAs and RBP binding sites for diagnosing diseases and providing a potential target to treat diseases[1].Many studies have predicted the binding sites of circRNA-RBPs by using deep learning methods based on the sequence information of circRNAs for each ***,many methods focus on diversified view of sequence encoding for improving the performance of the predictive models.

关键词： learning Deep function

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Composite Nonlinear Bilateral Control for Teleoperation Systems With External Disturbances

引用

IEEE/CAA Journal of Automatica Sinica 2019年第5期6卷 1220-1229页

作者： Zhenhua Zhao Jun yang Shihua Li wen-Hua Chen the college of Automation Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China the School of Automation Southeast UniversityKey Laboratory of Measurement and Control of School of Computer Science and Engineering (CSE)Ministry of EducationNanjing 210096China the Department of Aeronautical and Automotive Engineering Loughborough UniversityLoughboroughLE11 3TUUK

This paper presents a new composite nonlinear bilateral control method based on the nonlinear disturbance observer(NDOB) for teleoperation systems with external disturbances. By introducing the estimations of NDOB and systems' nominal nonlinear dynamics into controller design, a NDOB based composite nonlinear bilateral controller is constructed to attenuate the influence of disturbance and uncertain nonlinearities. As compared with the existing bilateral control methods which usually achieve force haptic(i.e., contact force tracking)through a passive way, the newly proposed method has two major merits: 1) asymptotical convergence of both position and force tracking errors is guaranteed;2) disturbance influence on force tracking error dynamics is rejected through the direct feedforward compensation of disturbance estimation. Simulations on a nonlinear teleoperation system are carried out and the results validate the effectiveness of the proposed controller.

关键词： Bilateral control disturbance observer force haptic teleoperation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A lattice-based signcryption scheme without random oracles

引用

Frontiers of computer science 2014年第4期8卷 667-675页

作者： Xiuhua LU qiaoyan wen Zhengping JIN Licheng WANG Chunli yang State Key Laboratory of Networking and Switching technology Beijing University of Posts and Telecommunications Beijing 100876 China Mathematics and Information science Langfang Teachers University Langfang 065000 China Information Security Center Beijing University of Posts and Telecommunications Beijing 100876 China

In order to achieve secure signcryption schemes in the quantum era, Li Fagen et al. [Concurrency and Computation： Practice and Experience, 2012, 25（4）： 2112-2122] and Wang Fenghe et al. [Applied Mathematics ＆ Information sciences, 2012, 6（1）： 23-28] have independently extended the concept of signcryption to lattice-based cryptography. However, their schemes are only secure under the random or- acle model. In this paper, we present a lattice-based signcryp- tion scheme which is secure under the standard model. We prove that our scheme achieves indistinguishability against adaptive chosen-ciphertext attacks （IND-CCA2） under the learning with errors （LWE） assumption and existential unforgeability against adaptive chosen-message attacks （EUF- CMA） under the small integer solution （SIS） assumption.

关键词： signcryption standard model lattice-based cryptography learning with errors problem small integer solution problem

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

基于模糊聚类的云任务调度算法

引用

通信学报 2012年第3期33卷 146-154页

作者：李文娟张启飞平玲娣潘雪增浙江大学计算机学院浙江杭州310018 杭州师范大学钱江学院浙江杭州310012

为了更好地实践云计算提供廉价按需服务的宗旨,提出了一种在模糊聚类基础上,基于两级调度模式的任务调度(FCTLBS,fuzzy clustering and two level based task scheduling)算法,新算法设置用户调度和任务调度2个等级。对资源进行性能模... 详细信息

为了更好地实践云计算提供廉价按需服务的宗旨,提出了一种在模糊聚类基础上,基于两级调度模式的任务调度(FCTLBS,fuzzy clustering and two level based task scheduling)算法,新算法设置用户调度和任务调度2个等级。对资源进行性能模糊聚类;根据任务参数计算资源偏好,使不同偏好任务在不同聚类中选择,缩小了选择范围,更好地反映了任务需求。仿真实验表明,本算法较之同类算法具备一定的优越性。

关键词：云计算模糊聚类任务调度分配公平

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

一种结构化P2P系统的负载平衡算法

引用

计算机科学 2010年第4期37卷 82-85页

作者：魏文红向菲王文丰王高才东莞理工学院计算机学院东莞523808 河南科技大学电子信息工程学院洛阳471003 南昌工程学院计算机科学与技术系南昌330099 广西大学计算机与电子信息学院南宁530004

在结构化P2P系统中,由于使用分布式散列表,各节点能够达到基本的负载平衡。但是,各个节点由于承担负载的能力不同和数据的存取存在"热点"现象,因此仍然存在负载不平衡的情况。针对这一缺点,采用局部信息调整负载的方法,提出了分布式负... 详细信息

在结构化P2P系统中,由于使用分布式散列表,各节点能够达到基本的负载平衡。但是,各个节点由于承担负载的能力不同和数据的存取存在"热点"现象,因此仍然存在负载不平衡的情况。针对这一缺点,采用局部信息调整负载的方法,提出了分布式负载平衡算法,从而避免了单点失效问题,同时算法的实现更为简单。

关键词：分布式哈希表 P2P系统负载平衡虚拟服务器

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：