摘要：
Corporate fraud poses a significant obstacle for sustainable business development. Drawing on social network analysis, this paper used data originated from Chinese-listed companies from 2009 to 2022 and found that directors' network position significantly mitigates corporate fraud. Mechanism tests indicated that the quality of external auditors and internal control play a mediating role in this relationship. Further analysis showed that the network positions of independent directors, non-independent directors, and female directors individually inhibit the inclination of corporate fraud when considering various types of directors. Of note, the busy director hypothesis was not applicable in explaining the impact of directors' network position on corporate fraud. This study provides a new approach to improving the sustainability of enterprises in newly emerging markets via the analysis of director networks. It is also beneficial to the research on director networks and corporate fraud in companies, offering insights for corporate governance and fraud prevention in companies and regulatory agencies.
期刊：
PROCEEDINGS OF THE 2017 7TH INTERNATIONAL CONFERENCE ON MECHATRONICS, COMPUTER AND EDUCATION INFORMATIONIZATION (MCEI 2017),2017年75:467-470 ISSN：2352-538X
通讯作者：
Yuan, Cao
作者机构：
[Sun, Jianchi; Yuan, Cao] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Hubei, Peoples R China.
通讯机构：
[Yuan, Cao] W;Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Hubei, Peoples R China.
会议名称：
7th International Conference on Mechatronics, Computer and Education Informationization (MCEI)
会议时间：
NOV 03-05, 2017
会议地点：
Shenyang, PEOPLES R CHINA
会议主办单位：
[Sun, Jianchi;Yuan, Cao] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Hubei, Peoples R China.
会议论文集名称：
ACSR-Advances in Comptuer Science Research
关键词：
Feature extraction;Cotton leaf;Analyze and compare;Operator
摘要：
Cotton is the main plant of braided fabric in China, the production of cotton planting is important, but cotton are caused by diseases and insect pests easily in planting, so in the process of farming, some useful information of cotton diseases should be achieved easily and can be analyzed effectively, so some accurate and effective actions can be done. In the paper, cotton leaf as the research object, the main diseases are introduced, how to detect the main diseases is the important step in modern agricultural digital technology. In the paper, cotton leaf as the object of research, the main features of apple leafs should be reserved, and the special features of the disease region in apple leaf should be emphasized effective. The novel algorithm based on color components and edge extraction algorithms. More than 500 results of main cotton image with the main diseases can be compared by main operator algorithms and color components, analyze the results of different cotton diseases and operators, the new algorithm based on color difference and morphological features be precedence than other algorithms in the main cotton diseases.
作者机构：
[Li, Yaqin; Gong, Cheng; Yuan, Cao] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Peoples R China.
会议名称：
6th International Conference on Electronic, Mechanical, Information and Management Society (EMIM)
会议时间：
APR 01-03, 2016
会议地点：
Shenyang, PEOPLES R CHINA
会议主办单位：
[Li, Yaqin;Yuan, Cao;Gong, Cheng] Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan, Peoples R China.
会议论文集名称：
ACSR-Advances in Comptuer Science Research
关键词：
Online-teaching;PCI;FPGA;DSP
摘要：
These online-teaching database systems are generated from online transactions, emails, videos, audios, images. They are stored in databases grow massively and become difficult to capture, form, store, manage, share, analyze and visualize via typical database software tools. The adventure of large amount of data and real-time requirements presents great challenges using traditional desktop computers. In this paper, to tackle the specific problem with a critical requirement of 10ms for whole data processing pipeline, we proposed a high performance embedded system as opposed to personal computer. Peripheral Component Interconnect (PCI) for data transferring from computer to Field Programmable Gate Array (FPGA) is proposed to solve the problem, and a custom-designed dual-port dual-channel RAM to realize simultaneous data exchange and data processing which was implemented using a 6-core Digital Signal Processor (DSP). The hardware system was designed and tested the performance of individual modules as well as the integration of them as a whole. We reported a total time using such pipeline of 7.5ms, meeting the critical requirement and demonstrating its feasibility in practical application.
作者：
Lu Zhou;Mingchao Liao;Cao Yuan;Zhongyin Sheng;Haoyu Zhang
期刊：
11th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2015),2015年:1-7
作者机构：
[Lu Zhou; Mingchao Liao; Cao Yuan; Zhongyin Sheng; Haoyu Zhang] School of Mathematics and Computer Science, Wuhan Polytechnic University, China
会议名称：
11th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2015)
关键词：
DDoS Attacks;Packet Size Interval;Entropy
摘要：
Distributed Denial-of-Service (DDoS) attacks are a great threat to the Internet. Enabling accurately detection of Distribute Denial-of-Service attacks is important because it is the foundation of defense against the attacks. In this paper, we focus on the distribution difference of the packet size between normal traffic flows and attack traffic flows and propose an entropy-based detection measurement. The measurement can highlights the characteristics of attack traffic. The experimental results show that the proposed measurement can effectively and clearly distinguish attack flows from normal flows in both low and high packet rate.
摘要：
With the development of information and the integration of media, it has great practical significance and research value to build a digital learning environment based on the complicated electronic circuit. However, the complicated electronic circuit in real-time need a complex and expensive technology. In order to overcome the high cost and technology, an approach was proposed for simplifying generation by approximating the excitations with rectangular pulses, triangular pulses and cosine waves which can be implemented with a moderate cost in analogical electronics. In this work, we improved a novel approach based on genetic programming, The differences between theoretical excitation signals and the approximation driving pulses, related to their excitation effects, were minimized by genetic programming. From these results, the accuracy of simulation can be improved by the new approach, the difference between theoretical complicated digital signals and the new approach is reduced. A trade off is obtained between the costs of implementation of digital processing in digital learning environments.
关键词：
teaching evaluation;method of weighted mean;classification
摘要：
The paper selects certain features then classifies students and calculates the average score of each type student, ultimately by means of the method of weighted mean, gives each type of student a certain weight, to process the data of teaching evaluation. Compared with traditional method, the results of above method are closer to teacher's true level, and the data processing is also more scientific and reasonable. This paper also points out the disadvantages of current assessment system and recommends universities can adopt the method of weighted mean to improve the accuracy and effectiveness in current system.
摘要：
For a graph G, the Hosoya index and the Merrifield Simmons index are defined as the total number of its matchings and the total number of its independent sets, respectively. In this paper, we characterize the structure of those graphs that minimize the Merrifield-Simmons index and those that maximize the Hosoya index in two classes of simple connected graphs with n vertices: graphs with fixed matching number and graphs with fixed connectivity. (C) 2014 Elsevier B.V. All rights reserved.
作者：
Zhu, Tianqing;Li, Gang;Zhou, Wanlei;Xiong, Ping;Yuan, Cao
期刊：
Lecture Notes in Computer Science,2014年8443 LNAI(PART 1):557-568 ISSN：0302-9743
通讯作者：
Li, G.(gang.li@deakin.edu.au)
作者机构：
[Zhou, Wanlei; Li, Gang; Yuan, Cao; Zhu, Tianqing; Xiong, Ping] School of Information Technology, Deakin University, Australia;[Zhou, Wanlei; Li, Gang; Yuan, Cao; Zhu, Tianqing; Xiong, Ping] School of Mathematics and Computer, Wuhan Polytechnic University, China;[Zhou, Wanlei; Li, Gang; Yuan, Cao; Zhu, Tianqing; Xiong, Ping] School of Information, Zhongnan University of Economics and Law, China
会议名称：
18th Pacific-Asia Conference on Advances in Knowledge Discovery and Data Mining, PAKDD 2014
会议时间：
13 May 2014 through 16 May 2014
会议地点：
Tainan
关键词：
Data mining;Background information;Differential privacies;Privacy concerns;Privacy preserving;Real-world datasets;Recommendation;Tagging;Weight perturbation;User interfaces
期刊：
Applied Mechanics and Materials,2013年329:382-386 ISSN：1660-9336
作者机构：
[Li Y.Q.; Chen D.] School of Mathematic and Computer Science, Wuhan Polytechnic University, China;[Yuan C.] School of Computer and Software, Wuhan Vocational College of Software and Engineering, China
会议名称：
3rd International Conference on Intelligent Structure and Vibration Control, ISVC 2013
会议时间：
22 March 2013 through 24 March 2013
关键词：
Arbitrary waveform generator;Direct digital synthesizer;Hard system;Limited diffracting wave
摘要：
Let Diag(G) and D(G) be the degree-diagonal matrix and distance matrix of G, respectively. Define the multiplier Diag(G)D(G) as degree distance matrix of G. The degree distance of G is defined as D'(G) = Σ x∈v(G)dG(x)Dg(x), where dg(x) is the degree of vertex x, DG(x) = Σ∈V(G)d G(u,x) and dg(u,x) the distance between u and x. Obviously, D'(G) is also the sum of elements of degree distance matrix Diag(G)D(G) of G. A connected graph G is a cactus if any two of its cycles have at most one common vertex. Let G (n, r) be the set of cacti of order n and with r cycles. In this paper, we give the sharp lower bound of the degree distance of cacti among G (n,r), and characterize the corresponding extremal cactus.
