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The Number of Blocks of a Graph with Given Minimum Degree Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-25 Lei Li; Baoyindureng Wu
A block of a graph is a nonseparable maximal subgraph of the graph. We denote by the number of block of a graph . We show that, for a connected graph of order with minimum degree , . The bound is asymptotically tight. In addition, for a connected cubic graph of order , . The bound is tight.
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A Note on the Minimum Wiener Polarity Index of Trees with a Given Number of Vertices and Segments or Branching Vertices Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-23 Sadia Noureen; Akhlaq Ahmad Bhatti; Akbar Ali
The Wiener polarity index of a graph , usually denoted by , is defined as the number of unordered pairs of those vertices of that are at distance 3. A vertex of a tree with degree at least 3 is called a branching vertex. A segment of a tree is a nontrivial path whose end-vertices have degrees different from 2 in and every other vertex (if exists) of has degree 2 in . In this note, the best possible
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Global Exponential Stability of a Delayed HIV Infection Model with a Nonlinear Incidence Rate Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-19 Zhiwen Long
Under the assumption that there is a time delay between the time target cells are contacted by the virus particles and the time the contacted cells become actively infected, we investigate the exponential stability of the noninfected equilibrium for a delayed HIV infection model with a nonlinear incidence rate. Compared with the global asymptotic stability analysis based on basic reproduction number
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Dynamics and Control of Worm Epidemic Based on Mobile Networks by SEIQR-Type Model with Saturated Incidence Rate Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-18 Rui Hu; Qingwu Gao; Bairong Wang
The mobile networks have increasingly facilitated our daily life but are also breeding grounds for malicious worms, which are considered as the main threat to cyber security. The purpose of this paper is to analyze the dynamics of worm propagation and to control the worm epidemic based on mobile-phone networks. Accordingly, we establish an SEIQR-type model to explore the worm epidemic with saturated
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Vehicle Routing and Scheduling of Flex-Route Transit under a Dynamic Operating Environment Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-18 Yue Zheng; Liangpeng Gao; Wenquan Li
To improve the reliability, responsiveness, and productivity of the flex-route transit service, this paper investigates the vehicle scheduling and routing problem under a dynamic operating environment. First, we discuss the new operating polices after the introduction of intelligent transportation systems (ITSs), including automatic vehicle location (AVL) system, mobile data terminal (MDT), and computer-aided
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Information Spreading on Activity-Driven Temporal Networks with Two-Step Memory Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-16 Linfeng Zhong; Xiaoyu Xue; Yu Bai; Jin Huang; Qing Cheng; Longyang Huang; Weijun Pan
Information spreading dynamics on the temporal network is a hot topic in the field of network science. In this paper, we propose an information spreading model on an activity-driven temporal network, in which a node is accepting the information dependents on the cumulatively received pieces of information in its recent two steps. With a generalized Markovian approach, we analyzed the information spreading
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Operation Strategies Based on Horizontal Competition and Service Capability Sharing under Demand Disturbance Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-13 Kun Wang; Dongsong Wu
The article considers the influence of demand disturbance on price, service capability, and operation mode selection of firms. Firstly, we discuss the equilibrium pricing and service capability strategy of the firm under three operation modes: price and service competition, price competition and service capability sharing, and price and service centralized making-decision. When there is demand disruption
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Generalized Orthogonal Discrete W Transform and Its Fast Algorithm Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-11 Jichao Sun; Zhengping Zhang
Based on the generalized discrete Fourier transform, the generalized orthogonal discrete W transform and its fast algorithm are proposed and derived in this paper. The orthogonal discrete W transform proposed by Zhongde Wang has only four types. However, the generalized orthogonal discrete W transform proposed by us has infinite types and subsumes a family of symmetric transforms. The generalized orthogonal
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Variance Swap Pricing under Markov-Modulated Jump-Diffusion Model Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-08 Shican Liu; Yu Yang; Hu Zhang; Yonghong Wu
This paper investigates the pricing of discretely sampled variance swaps under a Markov regime-switching jump-diffusion model. The jump diffusion, as well as other parameters of the underlying stock’s dynamics, is modulated by a Markov chain representing different states of the market. A semi-closed-form pricing formula is derived by applying the generalized Fourier transform method. The counterpart
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The Optimal PPP Model of Emergency Rescue Service Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-05 Guangxi Cao; Ling Zhou
Based on the analysis of the shortage of emergency rescue services and the supervision of public-private-partnership (PPP) projects, this paper explores the rent-seeking game predicament and establishes a three-player rent-seeking game model among government regulators, private enterprises, and government agents in the bidding operation of PPP projects by learning from Stackelberg game theory. Through
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How Does the Heterogeneity of Members Affect the Evolution of Group Opinions? Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2021-01-04 An Lu; Haifeng Ling; Zhengping Ding
Understanding the impact of heterogeneity on the evolution of group opinions can enlighten us on how to effectively organize, redesign, and improve decision-making efficiency. This article explores mainly the effects of heterogeneity on the evolution of group opinions. It is found that the heterogeneity of individuals’ openness has an important influence on the ability to aggregate group opinions.
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Endogenous Third-Degree Price Discrimination in a Supply Chain with One Common Manufacturer and Duopoly Retailers Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-23 Hongmei Yang; Wei Wang
Assuming the two retailers decide whether to acquire information to segment consumers and price them differently, we investigate the problem of information acquisition and third-degree price discrimination in the supply chain composed of one common manufacturer and duopoly retailers. We explore how the supply chain members’ pricing decisions are affected by the fraction of high price-sensitivity consumers
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Dynamics in a Delayed Competition System on a Weighted Network Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-23 Yaohua Tong; Xiaoling Wang
In this paper, we study the stability of positive steady states in a delayed competition system on a weighted network, which does not satisfy the comparison principle appealing to classical competitive systems. By introducing some auxiliary equations and constructing proper contracting rectangles, we present some sufficient conditions on the stability of the unique positive steady state. Moreover,
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Sustainable and Optimal “Uniqueness” Contract in Public-Private Partnership Projects of Transportation Infrastructure Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-18 Yingjun Zhu; Zhitong Gao; Ruihai Li
To control the “uniqueness” risk in Public-Private Partnership (PPP) projects of transportation infrastructure, we design a simplified “uniqueness” contract model by incorporating the impact of the initial investment which is based on the Bertrand model. The nonlinear programming method is adopted to derive the optimal “uniqueness” contracts for incumbent private capital, the public, and the social
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The Measurement of Green Finance Development Index and Its Poverty Reduction Effect: Dynamic Panel Analysis Based on Improved Entropy Method Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-16 Lili Jiang; Hui Wang; Aihua Tong; Zhifei Hu; Hongjun Duan; Xiaolei Zhang; Yifeng Wang
Finance contributes to poverty alleviation through economic growth, and the development of green finance is related to the sustainable development of the world economy and environment. Green finance not only helps promote sustainable economic development but also helps reduce poverty. Based on the analysis of related theories about green finance and poverty alleviation, this paper selects 18 indicators
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Innovation Efficiency of High-Tech SMEs Listed in China: Its Measurement and Antecedents Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-16 Lixia Liu; Yaming Hou; Xueli Zhan; Zongxian Wang
Innovation efficiency is an important index to measure the innovation performance of high-tech enterprises. Numerous researches have been conducted on innovation efficiency at national, regional, and sectoral levels, while there are comparatively few studies on the innovation efficiency of high-tech small- and medium-sized enterprises (SMEs) from a micro perspective. Therefore, innovation efficiency
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The Dark Side of Ridesharing in China: A Case Study of Qiangsheng Taxi Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-16 Tian Meng; Songyi Cai; You Qu; Evelyn Ng; Barney Tan; Bo Zhu
Our understanding of the negative implications of the sharing economy is limited, particularly from the perspective of the traditional businesses that are being displaced. To address this knowledge gap, this paper documents our ongoing study of Qiangsheng Taxi, the oldest and largest taxi company based in Shanghai, China. Our aim is to develop a preliminary process model based on the data collected
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Emergency Response for COVID-19 Prevention and Control in Urban Rail Transit Based on Case-Based Reasoning Method Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-15 Yuning Wang; Yingzi Liang; Hui Sun; Yufei Yang
As an important public travel mode, urban rail transit has the characteristics of crowded passengers and closed operation. Safe management of urban rail transit is an important research topic that attracted attention in recent years. This article proposes a decision analysis method based on case-based reasoning, which aims to solve the emergency response problems for the prevention and control of corona
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Mean Empirical Likelihood Inference for Response Mean with Data Missing at Random Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-15 Hanji He; Guangming Deng
We extend the mean empirical likelihood inference for response mean with data missing at random. The empirical likelihood ratio confidence regions are poor when the response is missing at random, especially when the covariate is high-dimensional and the sample size is small. Hence, we develop three bias-corrected mean empirical likelihood approaches to obtain efficient inference for response mean.
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Quality Risk Propagation of Complex Product Collaborative Manufacturing Supply Chain Network Based on CN and SoV Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-15 Tengjiao Li; Hongzhuan Chen; Jie Yuan; Jingye Qian; Abdul Waheed Siyal
The collaborative development of complex products has gradually developed into a “main manufacturer-suppliers” mode, under which the manufacturing enterprises form a complex product collaborative manufacturing supply chain network. Quality risks which bring enormous hidden danger to the product quality can be propagated and accumulate along the supply chain. It is of great significance to quantify
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G/M/N Queuing Model-Based Research on the Parking Spaces for Primary and Secondary School Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-12 Yi Zhao; Zhen Zhou; Qilong Pan; Tianhua Zhou
In order to ease the traffic congestion near primary and secondary schools during the drop-off and pick-up, traffic behavior was analyzed, and a quantitative allocation method for parking spaces was proposed. The proposed method includes three steps. Firstly, a vehicle queuing model based on G/M/N queue theory was built, and MATLAB was employed to simulate the queuing model to obtain a reasonable parking
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Performance Analysis of Queueing Systems with a Particular Service Interruption Discipline Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-10 Peng Liu; Tao Jiang; Xudong Chai
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Systemic Risk Contagion in Reconstructed Financial Credit Network within Banking and Firm Sectors on DebtRank Based Model Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-10 Yuetang (Peter) Bian; Yu Wang; Lu Xu
This paper is dedicated to building a multilayer financial network within banking sectors and firm sectors (nonbanking) on the balance sheet of two types of agents and to assessing systemic risk contagion in the reconstructed network. Two propagation channels due to interbank credit and counterparty risk via banks’ loans to firms are comprehensively taken into account in systemic risk contagion assessment
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The Distance Laplacian Spectral Radius of Clique Trees Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-09 Xiaoling Zhang; Jiajia Zhou
The distance Laplacian matrix of a connected graph is defined as , where is the distance matrix of and is the diagonal matrix of vertex transmissions of . The largest eigenvalue of is called the distance Laplacian spectral radius of . In this paper, we determine the graphs with maximum and minimum distance Laplacian spectral radius among all clique trees with vertices and cliques. Moreover, we obtain
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First General Zagreb Index of Generalized F-sum Graphs Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-09 H. M. Awais; Muhammad Javaid; Akbar Ali
The first general Zagreb (FGZ) index (also known as the general zeroth-order Randić index) of a graph can be defined as , where is a real number. As is equal to the order and size of when and , respectively, is usually assumed to be different from 0 to 1. In this paper, for every integer , the FGZ index is computed for the generalized F-sums graphs which are obtained by applying the different operations
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On a Sir Epidemic Model for the COVID-19 Pandemic and the Logistic Equation Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-09 Manuel De la Sen; Asier Ibeas
The main objective of this paper is to describe and interpret an SIR (Susceptible-Infectious-Recovered) epidemic model though a logistic equation, which is parameterized by a Malthusian parameter and a carrying capacity parameter, both being time-varying, in general, and then to apply the model to the COVID-19 pandemic by using some recorded data. In particular, the Malthusian parameter is related
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CAREA: Cotraining Attribute and Relation Embeddings for Cross-Lingual Entity Alignment in Knowledge Graphs Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-08 Baiyang Chen; Xiaoliang Chen; Peng Lu; Yajun Du
Knowledge graphs (KGs) are one of the most widely used techniques of knowledge organizations and have been extensively used in many application fields related to artificial intelligence, for example, web search and recommendations. Entity alignment provides a useful tool for how to integrate multilingual KGs automatically. However, most of the existing studies evaluated ignore the abundant information
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The Impact of R&D Input on Technological Innovation: Evidence from South Asian and Southeast Asian Countries Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-07 Lei Lv; Yuchen Yin; Yuanchang Wang
In the era of the rapid development of knowledge economy and science, all countries have thought highly of technical innovation and greatly increased the R&D input for it. However, the research on the impact of R&D input on technical innovation lacks specialized, cross-country, and cross-time investigations, and especially, the research on small countries such as South Asia and Southeast Asia where
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Chaos on Discrete Neural Network Loops with Self-Feedback Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-07 Yuanlong Chen; Xiaoying Wu
In this paper, the complex dynamical behaviors in a discrete neural network loop with self-feedback are studied. Specifically, an invariant closed set of the system of neural network loops is built and the subsystem restricted on this invariant closed set is topologically conjugate to a two-sided symbolic dynamical system which has two symbols. In the end, some illustrative numerical examples are given
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Forecasting Oil Price by Hierarchical Shrinkage in Dynamic Parameter Models Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-03 Yuntong Liu; Yu Wei; Yi Liu; Wenjuan Li
The aim of this paper is to forecast monthly crude oil price with a hierarchical shrinkage approach, which utilizes not only LASSO for predictor selection, but a hierarchical Bayesian method to determine whether constant coefficient (CC) or time-varying parameter (TVP) predictive regression should be employed in each out-of-sample forecasting step. This newly developed method has the advantages of
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Integrated Scheduling Problem on a Single Bounded Batch Machine with an Unavailability Constraint Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-01 Jing Fan
We consider a scheduling problem where a set of jobs are first processed on a machine with an unavailability interval and, then, delivered to the customer directly. We focus on an integrated schedule of production and distribution such that the sum of the maximum delivery time and total delivery cost is optimized. We study two classes of processing machines in the production part. In the first class
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How Does Internet Information Affect Oil Price Fluctuations? Evidence from the Hot Degree of Market Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-01 Lu-Tao Zhao; Shi-Qiu Guo; Jing Miao; Ling-Yun He
Not only the fundamentals of supply and demand but also international oil prices are affected by nonfundamental indicators such as emergencies. With the development of big data technology, many unstructured and semistructured factors can be reflected through Internet information. Based on this, this paper proposes a HD-based oil price forecasting model to explore the impact of Internet information
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The Interval Parameter Optimization Model Based on Three-Way Decision Space and Its Application on “Green Products Recommendation” Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-12-01 Mingxia Li; Kebing Chen; Caiyun Liu; Baoxiang Liu
The interval concept lattice theory, a new method of mining objects based on interval parameters, can more accurately deal with uncertain information than the classical concept lattice theory. The optimization of interval parameters has been a problem that is not well solved. From the perspective of three-way decision space, we first combine the theories of interval concept lattice and three-way decision
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New Method of Solving the Economic Complex Systems Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-29 Ya-Juan Yang; Chung-Cheng Chen; Yen-Ting Chen
In this study, the authors first develop a direct method used to solve the linear nonhomogeneous time-invariant difference equation with the same number for inputs and outputs. Economic cybernetics is the crystallization for the integration of economics and cybernetics. It analyzes the stability, controllability, and observability of the economic system by establishing a system model and enables people
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Random-Parameter Multivariate Negative Binomial Regression for Modeling Impacts of Contributing Factors on the Crash Frequency by Crash Types Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-28 Chenzhu Wang; Fei Chen; Jianchuan Cheng; Wu Bo; Ping Zhang; Mingyu Hou; Feng Xiao
Highways provide the basis for safe and efficient driving. Road geometry plays a critical role in dynamic driving systems. Contributing factors such as plane, longitudinal alignment, and traffic volume, as well as drivers’ sight characteristics, determine the safe operating speed of cars and trucks. In turn, the operating speed influences the frequency and type of crashes on the highways. Methods.
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Fractional Grassi–Miller Map Based on the Caputo h-Difference Operator: Linear Methods for Chaos Control and Synchronization Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-26 Ibtissem Talbi; Adel Ouannas; Giuseppe Grassi; Amina-Aicha Khennaoui; Viet-Thanh Pham; Dumitru Baleanu
Investigating dynamic properties of discrete chaotic systems with fractional order has been receiving much attention recently. This paper provides a contribution to the topic by presenting a novel version of the fractional Grassi–Miller map, along with improved schemes for controlling and synchronizing its dynamics. By exploiting the Caputo h-difference operator, at first, the chaotic dynamics of the
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A Comparative Analysis of Strategic Values of Four Silk-Road International Transport Corridors Based on a Fuzzy Integral Method with Comprehensive Weights Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-24 Chengfu Wang; Chengfeng Huang; Haichang Guan; Tao Zeng
This paper carries out a comparative analysis of the strategic values of four silk-road international transport corridors, “China-Pakistan-Iran-Turkey” (CPIT), “China-Mongolia-Russia” (CMR), “Bangladesh-China-India-Myanmar” (BCIM), and “China-Singapore-Egypt-Greece” (CSEG). These corridors aim to reactivate the Northwest, North, South, and Marine Silk Road during the period of the “Belt and Road” (B&R)
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Vertical Line Extension Decisions in a Competitive Market with Consumers’ Need for Product Uniqueness Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-24 Jie Wang; Qin Su; Canyou Wang
One important reason for offering customized products is to satisfy consumers’ need for product uniqueness. In this paper, we take consumers’ unique preferences into account to examine how firms make decisions on vertical line extensions with introducing a customized product. This study develops the consumer’s utility function, which captures consumers’ behavioural and emotional factors, and the results
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Exploring Influencing Factors of Passenger Satisfaction toward Bus Transit in Small-Medium City in China Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-23 Xiaowei Li; Jingkun Fan; Yao Wu; Jun Chen; Xuefeng Deng
This paper aims to explore the factors influencing passengers’ satisfaction toward bus transit and develop the improvement strategy for the small-medium city. Data including individual attributes, travel activity attributes, and perceived service attributes were collected in the city of Weinan, China. The ordered logit (OL) model and ordered Probit (OP) model were employed to explore the significant
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Economic Policy Uncertainty and Stock Returns of Africa: A Wavelet Coherence Analysis Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-23 Emmanuel Asafo-Adjei; Daniel Agyapong; Samuel Kwaku Agyei; Siaw Frimpong; Reginald Djimatey; Anokye M. Adam
This study explores how global economic policy uncertainty (EPU) shocks comove with stock returns (SR) of eight African countries—Botswana, Ghana, Kenya, Morocco, Namibia, Nigeria, South Africa, and Zambia. The study employed daily data from December 2010 to December 2019 using wavelet coherence analysis. The results showed that global EPU comoves with most of the SR of African markets and was concentrated
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Research on SBMPC Algorithm for Path Planning of Rescue and Detection Robot Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-23 Lin-Lin Wang; Li-Xin Pan
This research aims to improve autonomous navigation of coal mine rescue and detection robot, eliminate the danger for rescuers, and enhance the security of rescue work. The concept of model predictive control is introduced into path planning of rescue and detection robot in this paper. Sampling-Based Model Predictive Control (SBMPC) algorithm is proposed basing on the construction of cost function
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Galloping Stability and Wind Tunnel Test of Iced Quad Bundled Conductors considering Wake Effect Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-21 Xiaohui Liu; Ming Zou; Chuan Wu; Mengqi Cai; Guangyun Min; Shuguang Yang
A new quad bundle conductor galloping model considering wake effect is proposed to solve the problem of different aerodynamic coefficients of each subconductor of iced quad bundle conductor. Based on the quasistatic theory, a new 3-DOF (three degrees of freedom) galloping model of iced quad bundle conductors is established, which can accurately reflect the energy transfer and galloping of quad bundle
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Detecting Falsified Financial Statements Using a Hybrid SM-UTADIS Approach : Empirical Analysis of Listed Traditional Chinese Medicine Companies in China Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-21 Ruicheng Yang; Qi Jiang
By combining the similarity matching (SM) method with the utilities additives discriminates (UTADIS) method, we propose a hybrid SM-UTADIS approach to detect falsified financial statements (FFS) of listed companies. To evaluate the performance of this hybrid approach, we conduct experiments using the annual financial ratios of listed traditional Chinese medicine (TCM) companies in China. There are
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Research on Urban Rainfall Runoff Pollution Prediction Model Based on Feature Fusion Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-20 Junping Yao; Tianle Sun
In this paper, a rainfall runoff pollution prediction method based on grey neural network algorithm is proposed in consideration of the current situation that the accuracy of research results related to rainfall runoff pollution prediction needs to be improved. Meanwhile, the characteristics of rainfall runoff pollution are analyzed from the perspectives of the main sources of rainfall runoff pollution
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Dynamics Analysis of a Mathematical Model for New Product Innovation Diffusion Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-20 Chunru Li; Zujun Ma
In this paper, a mathematical model with time-delay-related parameters and media coverage to describe the diffusion process of new products is proposed, in which the time-delay-related parameters denote the stage in which potential customers decide whether to adopt a new product. Then, the stability and the Hopf bifurcation of the proposed model are analyzed in detail. The center manifold theorem and
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On Multitracking of First-Order MASs with Adaptive Coupling Strength Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-19 Da Huang; Xiaolin Fan; Zhiyong Yu; Haijun Jiang
The problem of cluster consensus with multiple leaders is called multitracking. In this article, a sort of multitracking of first-order multiagent systems with adaptive coupling strength is studied by the application of adaptive strategy, and the delayed relation between various leaders and clusters is considered. To reach the clustered multitracking goal, a novel pinning-like control protocol with
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The Impact of Consumers’ Peer-Induced Fairness Concerns on Mixed Retail and E-Tail Channels Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-16 Yan-Fei Zhao; Yong Wang; Guo-Qiang Shi
With the rapid development of e-commerce, online retailing has become an important part of the market. In order to improve market competitiveness and increase market share, more and more retailers have opened both regular offline channel and online e-tail channel to sell products. Then how to price becomes an urgent problem for upstream manufacturers and dual-channel retailers when there is price competition
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A Novel Intelligent Recommendation Algorithm Based on Mass Diffusion Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-16 Guanglai Tian; Shuang Zhou; Gengxin Sun; Chih-Cheng Chen
Social recommendation algorithm is a common tool for recommending interesting or potentially useful items to users amidst the sea of online information. The users usually have various relationships, each of which has its unique impact on the recommendation results. It is unlikely to make accurate recommendations solely based on one relationship. Based on user-item bipartite graph, this paper establishes
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A Scalable Mechanism Based on Blockchain for Information Processing in Energy Trading Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-16 Xunyan Jiang; Lei Wu
Energy Internet (EI) can provide a fair, transparent, and safe environment for the energy market through the rational use of the Internet and blockchain technology. However, the existing EI has complicated management in energy, capital, and information flow. Furthermore, blockchain technology (BT) is a new technique with a scalability problem. To overcome the problem, we proposed a scalable mechanism
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Research on Wireless Sensor Network Security Location Based on Received Signal Strength Indicator Sybil Attack Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-12 Hongbin Wang; Liping Feng
This paper studies the security location mechanism of the sensor network node under the attack of Sybil and analyzes the safe attacks which are possibly accepted and safe requirement in the location system. Since RSSI (Received Signal Strength Indicator) possesses the energy transmission function, different transmission energy will cause it to produce different RSSI readings. Furthermore, this kind
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Analysis of a Fractional Reaction-Diffusion HBV Model with Cure of Infected Cells Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-12 Moussa Bachraoui; Khalid Hattaf; Noura Yousfi
In this paper, we propose a fractional reaction-diffusion model in order to better understand the mechanisms and dynamics of hepatitis B virus (HBV) infection in human body. The infection transmission is modeled by Hattaf–Yousfi functional response, and the fractional derivative is in the sense of Caputo. The global stability of the model equilibria is analyzed by means of Lyapunov functionals. Finally
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Qualitative Analysis of the Effect of Weeds Removal in Paddy Ecosystems in Fallow Season Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-11 Leru Zhou; Zhigang Liu; Tiejun Zhou
In the paper, we introduce a differential equations model of paddy ecosystems in the fallow season to study the effect of weeds removal from the paddy fields. We found that there is an unstable equilibrium of the extinction of weeds and herbivores in the system. When the intensity of weeds removal meets certain conditions and the intrinsic growth rate of herbivores is higher than their excretion rate
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Public Acceptance of Driverless Buses in China: An Empirical Analysis Based on an Extended UTAUT Model Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-11 Jian Chen; Rui Li; Mi Gan; Zhiyan Fu; Fatao Yuan
Driverless buses are expected to play a vital role in the future, and better public acceptance will provide a social foundation for its development. In this study, two new variables, personal innovativeness (PI) and perceived risk (PR), were incorporated into the integrated technology acceptance model (UTAUT, unified theory of acceptance and use of technology) to construct an extended model, which
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Risk Transmission of the Regions in the Yangtze River Economic Belt Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-10 Xianbo Wu; Xiaofeng Hui
This study mainly uses the method of effective transfer entropy (ETE) to study the risk transmission in each year among the 11 provinces and municipalities in the Yangtze River Economic Belt during the last five years. From the results of the risk transmission network, centralities of the regions, and maximum spanning trees, it can be seen that, in the years of 2015 and 2016, the risk transmission
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Least Squares Estimation for Discretely Observed Stochastic Lotka–Volterra Model Driven by Small -Stable Noises Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-09 Chao Wei; Yan Wei; Yingying Zhou
Stochastic Lotka–Volterra model driven by small -stable noises is used to describe population dynamics perturbed by random environment. However, parameters in the model are always unknown. The contrast function is given to obtain least squares estimators. The consistency and the rate of convergence of the least squares estimators are proved, and the asymptotic distribution of the estimators are derived
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On the Complex Oscillation of Meromorphic Solutions of Nonhomogeneous Linear Differential Equations with Meromorphic Coefficients Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-09 Chuang-Xin Chen; Ning Cui; Zong-Xuan Chen
In this paper, we study the higher order differential equation , where is a rational function, having a pole at of order , and is a meromorphic function with finite order, and obtain some properties related to the order and zeros of its meromorphic solutions.
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A Fuzzy Programming Model for Positioning Customer Order Decoupling Point Based on QFD in Logistics Service with Mass Customization Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-06 Guanxiong Wang; Xiaojian Hu
Mass customization logistics service mode provides a new way to maintain the sustainable cooperative relationship between customers and integrators. One of the key factors to maintain the sustainable development of logistics service supply chain under MC mode is to locate a suitable customer order decoupling point (CODP) location. This paper investigates the problem of CODP in the logistics service
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Option Pricing Formulas in a New Uncertain Mean-Reverting Stock Model with Floating Interest Rate Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-04 Zhaopeng Liu
Options play a very important role in the financial market, and option pricing has become one of the focus issues discussed by the scholars. This paper proposes a new uncertain mean-reverting stock model with floating interest rate, where the interest rate is assumed to be the uncertain Cox-Ingersoll-Ross (CIR) model. The European option and American option pricing formulas are derived via the -path
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Regional Credit, Technological Innovation, and Economic Growth in China: A Spatial Panel Analysis Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-03 Huan Zhou; Shaojian Qu; Xiaoguang Yang; Qinglu Yuan
Based on data of 31 provinces in China for the period 2007–2017, this paper establishes spatial models by means of a transcendental logarithmic production function and analyzes the impact of regional credit and technological innovation on regional economic growth. The Jenks natural breaks method, kernel density function, and Moran index are introduced for spatial statistical analysis. Spatial weight
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A New Collaborative Filtering Recommendation Method Based on Transductive SVM and Active Learning Discret. Dyn. Nat. Soc. (IF 0.87) Pub Date : 2020-11-02 Xibin Wang; Zhenyu Dai; Hui Li; Jianfeng Yang
In the collaborative filtering (CF) recommendation applications, the sparsity of user rating data, the effectiveness of cold start, the strategy of item information neglection, and user profiles construction are critical to both the efficiency and effectiveness of the recommendation algorithm. In order to solve the above problems, a personalized recommendation approach combining semisupervised support
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