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This paper proposed a novel algorithm to analyze the evolution of regional collaborative innovation systems from the complex network perspective. At first, we illustrate the structure of collaborative networks, which contains several elements. And we found out the system could be regarded as a complex network. As to the evolution algorithm we proposed, in order to match the actual situation, each...
Evolving complex networks are abundant in the real world, i.e., Networks with different sizes (number of nodes) may originate from the same evolving system. In this paper, we use some typical evolving models of complex networks to evaluate the performances of graph spectra. The experimental results verify that the normalized Laplacian spectrum is a good indicator to distinguish between different evolving...
Network public opinion (NPO) has two mechanism to spread: internal spreading mechanism is the internal opinion evolvement process, which explores the mechanism of how NPO evolves from chaotic individual opinion at the initial moment to consensus, polarization, or clusterization; external spreading mechanism is the process of the external influence pervasion, which focus on how NPO spread from a few...
Systems as diverse as genetic networks or the World Wide Web are best described as networks with complex topology. A common property of many large networks is that the vertex connectivities follow a scale-free power-law distribution. This feature was found to be a consequence of three generic mechanisms: (i) networks expand continuously by the addition of new vertices, (ii) new vertex with priority...
Based on the improvement of the BA model in which the local world theory is imported, a novel model of complex network topology structure is proposed. Many known models can be founded in the presented model. Firstly, the generation arithmetic of topology is introduced, furthermore, the simulations and corresponding analysis are carried out. The results of simulation matched some parameters in realistic...
In the cyber-physical society, networks are constructed for information transportation. Among them, power law networks with the scale free property are extensively found in self-organized systems. The dynamicity of the cyber-physical society drives large-scale networks keeping interacting and evolving. Several networks can be integrated or merged into one network during the evolving process of the...
In recent years, complicated network applications have greatly developed in all areas. At present, the CPS brings many opportunities to the researchers of complex network. The biggest characteristic of CPS is that it's intelligence network with communication and computation and decisions equipment. For example, the electricity system is a complex network energetic. The process is assembling the complex...
The topologies of Internet and Internet-based information systems have complex network properties. Designing Internet-based virtual computing environment topology with appropriate properties is significant for both the resource sharing and system performance. We analyses the topology properties of the typical P2P systems, and proposes a new topology generating method, which includes three phases,...
Many phenomena can be regarded as multi-information dissemination existing simultaneously in nature and society, and interaction exists in the course of different information dissemination. Taking complex network as system model complex network dynamics theories are adopted. Multi-information dissemination models are researched and explored in the same system in which multi-information dissemination...
In this paper we propose a Packet-based measurement technique called Floating IP Active Measurement (FIPAM) that utilizes routing loop to measure Delay and Throughput in IP networks. Calculating these parameters in multi-provider and complex networks like Internet has became a challenge as most of current active measurement tools relying on ICMP and majority of today's networks block ICMP traffics...
Peer-to-peer technology has been widely used in Internet information sharing systems, such as Gnutella, eMule. A reasonable dynamic P2P simulation model is very significant towards understanding P2P, especially the emergence characteristic. A model for simulation the dynamics of P2P network from a point of view of complex network is present in the paper. The model recursively adopts a new node or...
Systems such as proteins, chemical compounds, and the Internet are being modeled as complex networks to identify local and global characteristics of the system. In many instances, these graphs are very large in size presenting challenges in their analysis. Hence, graph indexing techniques are developed to enhance various graph mining algorithms. In this paper, we propose a new Structural Graph Indexing...
With the advent of Electronic Commerce and its rapid development we witness more and more people pay attention to online shopping. TAOBAO provides the largest online shopping platform in Asia, gains more than 70% on-line shopping market share in china and C2C (consumer to consumer) market obtains 83% global share of TAOBAO. The analysis of network topology between online shops in TAOBAO in this paper...
Complex network theory is put forward in following research to analyze the statistical parameters of network business statically in E-commerce area. Empirical Study is based on the data provided by an online shopping website and statistical parameters such as enterprise act degree and clustering coefficient is studied accordingly. Thus we found that E-commerce displays the power law and clustering...
In many real networks, the importance of the nodes is different from each other due to their different functions. Considering this reason, a new evolving network model is proposed in this paper, which introduces the node differences. By ranking the new nodes according to their importance, they are designed to connect different numbers of the existing nodes. The model analysis and simulation results...
Community structure has been recognized as an important statistical feature of network systems over the past decade. The web service in SOA system naturally forms into some service community during execution process, within which the links between nodes are very dense, but between which they are quite sparse. These service communities were generated by repeatedly interaction between composite services...
In the context of complex networks,such as Internet, security testing determines whether an implementation under test conforms to its specification. Testing was carried out in a centralized and sequential way. This is no longer applicable or feasible as systems to be tested have become increasingly complex and can be widely distributed. We present a new solution to evaluate how a distributed approach...
We present a hierarchical structure or multi-scales infectious diseases analysis based on meta-population model with heterogenous connectivity and mobility patterns, and study the effect of multi-scales hierarchical connectivity pattern of complex social network on the propagation dynamics of epidemics. The simulation results show that the scale of growth time of outbreaks is inversely proportional...
Design thinking, as a complex system, can be described as complex network. We constructed design thinking networks from analysing verbal protocols acquired form a design experiment conducted with think-aloud method. The characteristic path length and the clustering coefficient of the design thinking networks were calculated and compared with that of the equivalent random graphs. Result indicates that...
Network value has attracted more and more attentions from scholars and enterprisers. Information through network can essentially impact everyone, while everyone in the network has the structure function to the network and may also influence others. But the contribution to the network is not the same for every one. Based on the complex network theory and customer activity, a customer network value...
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