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数字经济赋能我国制造业产业链高质量发展研究

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山西师大学报(社会科学版) 2025年第1期52卷 86-96页

作者：樊增强赵营尚涛山西师范大学马克思主义学院西北工业大学公共政策与管理学院

新时代我国经济发展的基本特征是由“高速增长”转向“高质量发展”,数字技术成为世界产业变革的先导力量。本文基于30个省级行政区域2011—2020年的面板数据，建立综合指标体系，实证探索数字经济对我国制造业产业链高质量发展的赋能... 详细信息

新时代我国经济发展的基本特征是由“高速增长”转向“高质量发展”,数字技术成为世界产业变革的先导力量。本文基于30个省级行政区域2011—2020年的面板数据，建立综合指标体系，实证探索数字经济对我国制造业产业链高质量发展的赋能效果，并对其区域异质性进行考察。研究表明：我国制造业产业链高质量发展水平除2012年有极小幅度下降之外，其他时间均呈不断上升的发展态势，数字经济一直以来发展迅猛，增速超100%,不同经济区发展情况存在差异；数字经济在全国范围内对制造业产业链高质量发展的作用效果为“U型”,且目前处于显著促进阶段；东部沿海、南部沿海、长江中游及大西南经济区作用效果为“U型”,与全国范围内效果一致；北部沿海及大西北经济区呈线性促进效果；黄河中游经济区的影响效果暂不显著；东北经济区则呈抑制作用，数字经济赋能制造业产业链高质量发展存在区域异质性。我国应继续大力发展数字经济，统筹数字产业空间布局，促进区域数字化均衡，进一步推动制造业产业链高质量发展。

关键词：数字经济制造业产业链高质量发展八大经济区

Differential identifiability clustering algorithms for big data analysis

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Science China(Information Sciences) 2021年第5期64卷 49-66页

作者： tao shang Zheng ZHAO Xujie REN Jianwei LIU School of Cyber Science and Technology Beihang University School of Electronic and Information Engineering Beihang University

Individual privacy preservation has become an important issue with the development of big data technology. The definition of ρ-differential identifiability(DI) precisely matches the legal definitions of privacy, which can provide an easy parameterization approach for practitioners so that they can set privacy parameters based on the privacy concept of individual identifiability. However, differential identifiability is currently only applied to some simple queries and achieved by Laplace mechanism, which cannot satisfy complex privacy preservation issues in big data analysis. In this paper, we propose a new exponential mechanism and composition properties of differential identifiability, and then apply differential identifiability to k-means and k-prototypes algorithms on MapReduce framework. DI k-means algorithm uses the usual Laplace mechanism and composition properties for numerical databases, while DI k-prototypes algorithm uses the new exponential mechanism and composition properties for mixed databases. The experimental results show that both DI k-means and DI k-prototypes algorithms satisfy differential identifiability.

关键词： differential identifiability differential privacy k-means k-prototypes big data

Dynamic data auditing scheme for big data storage

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Frontiers of Computer Science 2020年第1期14卷 219-229页

作者： Xingyue CHEN tao shang Feng ZHANG Jianwei LIU Zhenyu GUAN School of Electronic and Information Engineering Beihang UniversityBeijing 100083China School of Cyber Science and Technology Beihang UniversityBeijing 100083China

When users store data in big data platforms,the integrity of outsourced data is a major concern for data owners due to the lack of direct control over the ***,the existing remote data auditing schemes for big data platforms are only applicable to static *** order to verify the integrity of dynamic data in a Hadoop big data platform,we presents a dynamic auditing scheme meeting the special requirement of ***,a new data structure,namely Data Block Index Table,is designed to support dynamic data operations on HDFS(Hadoop distributed file system),including appending,inserting,deleting,and *** combined with the MapReduce framework,a dynamic auditing algorithm is designed to audit the data on HDFS *** shows that the proposed scheme is secure enough to resist forge attack,replace attack and replay attack on big data *** is also efficient in both computation and communication.

关键词： big data data security remote data auditing dynamic update privacy protection

Performance Analysis of Wireless Network Coding via Percolation

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Chinese Journal of Electronics 2014年第1期23卷 179-185页

作者： shang tao FAN Yong WANG Chao LIU Jianwei College of Electronic and Information Engineering Beihang University

In order to investigate the effect of network connectivity on the performance of wireless network coding, we introduce percolation theory to construct the system model of multi-hop wireless network for asymptotic connectivity. Concretely, we proposed a normalization algorithm for random network to layer the nodes of the largest connected component in multi-hop wireless network, and derived the theoretical conditions of percolation occurrence for the normalized hierarchical network of the largest connected component. Furthermore, according to the critical threshold of percolation phenomenon,we derived the performance of wireless network coding for the largest connected component. The mean delay and throughput were quantified in terms of network coding parameters such as coding window size, transmission radius, and node density. These conclusions clarify the effective performance of wireless network coding for random network, and will contribute to the evaluation of optimal performance of wireless network coding.

关键词： Network coding Percolation theory Random network Connectivity Node density

Continuous-Variable Quantum Network Coding Based on Quantum Discord

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Computers, Materials & Continua 2020年第9期64卷 1629-1645页

作者： tao shang Ran Liu Jianwei Liu Yafei Hou School of Cyber Science&Technology Beihang UniversityBeijing100083China Graduate School of Natural Science and Technology Okayama UniversityOkayama Prefecture700-8530Japan

Establishing entanglement is an essential task of quantum communication *** entanglement,quantum discord,as a measure of quantum correlation,is a necessary prerequisite to the success of entanglement *** realize efficient quantum communication based on quantum discord,in this paper,we consider the practical advantages of continuous variables and propose a feasible continuous-variable quantum network coding scheme based on quantum *** means of entanglement distribution by separable states,it can achieve quantum entanglement distribution from sources to targets in a butterfly *** with the representative discrete-variable quantum network coding schemes,the proposed continuous-variable quantum network coding scheme has a higher probability of entanglement distribution and defends against eavesdropping and forgery ***,the deduced relationship indicates that the increase in entanglement is less than or equal to quantum discord.

关键词： Continuous variable quantum network coding quantum discord entanglement distribution Gaussian cloning

Characteristic analysis of hydraulic hybrid vehicle based on limit cycle

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Science China(Technological Sciences) 2012年第4期55卷 1031-1036页

作者： CHEN YanLi LIU ShunAn shang tao ZHANG YuanKun College of Mechanical Science and Engineering Jilin UniversityChangchun 130022China Faculty of Engineering University of WollongongWollongong NSW 2522Australia

The theory of limit cycles was applied to hydraulic hybrid vehicle (HHV) to analyze the dynamic characteristics of the system. The exact mathematical models based on configuration diagram of HHV were built to study on equilibrium points, nonexistence of limit cycle and stability of equilibrium points. The analysis showed that if the Young's modulus of fluid is neglected, the equilibrium points of the system will be distributed on both sides of the initial function. In addition, there is a unique equilibrium point according to the practical signification of the system parameters. The nonexistence analysis showed that there is no limit cycle for the system, no matter how the viscosity coefficient B changes. The stability analysis of equilibrium points showed that the system is asymptotically stable about the equilibrium point at B≥0 and the equilibrium point is the center point of the system at B=0. Finally, the phase diagrams of global topological structure of HHV system were entirely described according to qualitative analysis of the singular points at infinity.

关键词： automotive engineering hydraulic hybrid vehicle limit cycle global structure

Quantum Homomorphic Signature with Repeatable Verification

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Computers, Materials & Continua 2019年第4期59卷 149-165页

作者： tao shang Zhuang Pei Ranyiliu Chen Jianwei Liu School of Cyber Science&Technology Beihang UniversityBeijing100083China Institut Fresnel Ecole Centrale de MarseilleMarseille13451France School of Electronic&Information Engineering Beihang UniversityBeijing100083China

In January 2015,the first quantum homomorphic signature scheme was proposed ***,only one verifier is allowed to verify a signature once in this *** order to support repeatable verification for general scenario,we propose a new quantum homomorphic signature scheme with repeatable verification by introducing serial verification model and parallel verification *** verification model solves the problem of signature verification by combining key distribution and Bell *** verification model solves the problem of signature duplication by logically treating one particle of an EPR pair as a quantum signature and physically preparing a new EPR *** models will be beneficial to the signature verification of general *** analysis shows that both intermediate verifiers and terminal verifiers can successfully verify signatures in the same operation with fewer resource consumption,and especially the verified signature in entangled states can be used repeatedly.

关键词： Quantum homomorphic signature repeatable verification serial model parallel model bell measurement

Secure Multi-Source Network Coding Scheme with Lattice Signature

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Wuhan University Journal of Natural Sciences 2015年第6期20卷 476-482页

作者： shang tao PENG Tianli LIU Jianwei School of Electronic and Information Engineering Beihang University

Multi-source network coding allows intermediate nodes to linearly combine packets from multiple sources, but it is vulnerable to pollution attacks which can cause multiple down- stream data to be polluted. To solve this problem, we take advan- tage of lattice signature and homomorphic property to build a se- cure multi-source network coding scheme. By means of the lattice basis delegation algorithms, our scheme can generate a public lattice for all source nodes and the homomorphic signatures can be calculated on this lattice. Consequently, the multi-source signature problem can be transformed into single-source signature problem only if all source nodes are considered as a whole. Scheme analy- sis shows the correctness and homomorphic property of the pro- posed scheme.

关键词： network coding multiple sources pollution attacks lattice signature homomorphic property

Hypothesis testing for reliability with a three-parameter Weibull distribution using minimum weighted relative entropy norm and bootstrap

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Journal of Zhejiang University-Science C(Computers and Electronics) 2013年第2期14卷 143-154页

作者： Xin-tao XIA Yin-ping JIN Yong-zhi XU Yan-tao shang Long CHEN School of Mechatronical Engineering Henan University of Science and Technology School of Mechatronical Engineering Northwestern Polytechnical University

With the help of relative entropy theory,norm theory,and bootstrap methodology,a new hypothesis testing method is proposed to verify reliability with a three-parameter Weibull *** on the relative difference information of the experimental value vector to the theoretical value vector of reliability,six criteria of the minimum weighted relative entropy norm are established to extract the optimal information vector of the Weibull parameters in the reliability experiment of product *** rejection region used in the hypothesis testing is deduced via the area of intersection set of the estimated truth-value function and its confidence interval function of the three-parameter Weibull *** case studies of simulation lifetime,helicopter component failure,and ceramic material failure indicate that the proposed method is able to reflect the practical situation of the reliability experiment.

关键词： Reliability Hypothesis testing Three-parameter Weibull distribution Weighted relative entropy Norm Bootstrap