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As the assessment standards of the community structure, in this paper, it unfolds the process of modularity. Firstly, it describes the original authority definition of Newman in detail, and popularizes to all kinds of different types networks. With the discovery of overlap feature, the modularity integrates the characteristic property of belonging factor, including extensions on Newman's modularity...
Conference proceedings front matter may contain various advertisements, welcome messages, committee or program information, and other miscellaneous conference information. This may in some cases also include the cover art, table of contents, copyright statements, title-page or half title-pages, blank pages, venue maps or other general information relating to the conference that was part of the original...
A method that can be used to get scale-free network from a small-world network without growth under the mechanism of preferential attachment is proposed. Unlike the normal BA growth network model, in our model we remove an old node with a probability scaling with the degree of the node before adding a new node into the network, that make the size of the network fixed, but the nodes and edges are not...
Energy efficiency is a key factor in the design of ad hoc networks. In this paper, we adopt the network utility maximization framework for joint power and rate optimization at both transport and physical layer. Then, we propose a novel energy-aware resource allocation algorithm by integrating the power cost into the objective function. The proposed algorithm has been implemented in a distributed manner...
There have been various studies on user influence of Twitter. However, for the popular Chinese micro-blogging social service Sina Weibo, there are still quite a few quantitative studies on user influence. In this paper, we analyzed the network of following and followed relations among users on Sina Weibo, and found that both the out-degree distribution and in-degree distribution of the network follow...
Complex networks are widely used to model various real-world systems. However, traditional tools from graph theory are only suitable for the study of individual networks, but not the relationship between them. In this work, we utilize tools from data mining and pattern recognition to study the similarity and difference between large-scale networks. After transforming networks into data clouds, structural...
This paper has researched on the leading nodes fluctuation of the CPI (the consumer price Index) based on Complex Network. The price fluctuations of consumer often affect each other. However, in the fluctuation of a certain amount of commodity prices, several products play an important role in effecting the rest of commodity price changes. The paper has Selected representative commodities including...
This paper investigates the consensus problem of multi-agent networks with aperiodic sampled communication and nonuniform time-delays under switching topology. A distributed impulsive algorithm is introduced to achieve consensus, where only position measurements are utilized. It is shown that under certain assumptions upon the sampling intervals, the diagonal elements of Laplace matrix and the control...
We propose a reliable method for constructing complex network from a time series based on phase space reconstruction and construct complex flow networks using the conductance fluctuating signals measured from gas-liquid two-phase flow experiment. After detecting the node strength distribution of the networks, we show that the strength distribution of the resulting networks can be well fitted with...
Visibility graphs have established themselves in recent years as being particularly suitable and flexible for analyzing signals measured from complex natural and artificial systems. Oil-water two-phase flow as a complicated fluid flow is one of the most complex systems. In this paper, we employ visibility graph to analyze the signals measured from experiment two-phase flow. We first introduce the...
In this paper, the cluster synchronization problem is considered for the nonlinearly coupled dynamical networks with community structure and nonidentical delayed nodes. When decoupled, the vertices in the same community are governed by the same dynamical equations, while those from different community groups are described differently. Both cases are investigated for the nonlinear complex networks...
In the era of the Internet of Things (IOT), the information world and the entity world are gradually integrated. Thus, the ways that people obtain, transmit, store, update and analyze information are also undergoing profound change. These changes will undoubtedly bring some new challenges to the traditional Spatial Data Warehouse (SDW) system. Based on the analysis of the technical characteristics...
Traditional web service discovery methods usually calculate the matching degrees of user demands and available services one by one, which is time-costing and not suitable for the open, dynamic and large network environment. In this paper, an incremental semantic web service discovery method based on Formal Concept Analysis (FCA) is proposed. Furthermore, the algorithm of constructing the services...
Importance sampling (IS) is a change-of-measure technique for speeding up the simulation of rare events in stochastic systems. In this paper, we presented an approach uses Importance Sampling technique for efficient estimation of software reliability via Markov software usage models in statistical testing. By suitable changes of the probabilities of state transitions during test, an iterative method...
With the continuous improvement of integrated circuit technology, the new low-power, multicore architecture to replace the previous single core processor architecture has become an inevitable trend of development. The emergence of multicore architectures will lead teaching courses face the problem that the experiments contents should be updated. Under such demand, this article reforms the teaching...
With the rapid development of Internet and Cloud Computing, Web-based applications become more powerful. In order to fully use the Web-based applications, we design a new Operating System known as the Cloud Terminal Operating System. CTOS just runs one application which is Web browser, and the Web-based applications meet all the daily needs of users. CTOS abandons the traditional desktop applications,...
Overwhelming amounts of surveillance video data are increasingly screwed up the pressure on efficient content-based retrieval and other applications. However, semantic gap exists between the low-level visual signal processing and high-level semantic understanding of the video event. In this paper, we propose an ontology-based content archive and retrieval framework for surveillance videos. Different...
In order to improve the searching efficiency of the classical Chord algorithm which is applied to the second generation of P2P network, we studied the Chord algorithm based on the polycyclic structure. Combining the multi-ring structure with group structure, polycyclic Chord algorithm links the whole nodes into multiple rings with recursive algorithm and uses active node in one group to record all...
It is important for improving program to detect duplicated code (also known as code clone) in the field of software development and maintenance. The existing solutions can not effectively analyze the complex semantics of programs, and so can not effectively detect functionally equivalent code fragments that execute the same operations but with different syntax. This paper proposes a method to detect...
OpenFOAM is a widely used opensource CFD application. Based on mesh partitioned, applications can run in parallel to achieve better performance in OpenFOAM. When mesh generated from the liquid field is large, performance of partitioning algorithms will heavily affect the execution efficiency of the whole application. In this paper, we investigate the four partitioning algorithms implemented in OpenFOAM-Simple,...
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