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6th International Conference on Fuzzy systems and Knowledge Discovery, FSKD 2009

作者： Li, Wenjie Zhao, Yan Shen, Nan Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology 300191 Tianjin China Key Laboratory of Computer Vision and System Tianjin University of Technology Ministry of Education 300191 Tianjin China Nankai University 300071 Tianjin China

ISBN: (纸本)9780769537351

Ontology is an explicit specification of a conceptualization. With the development of semantic Web, there are more and more ontologies. How to achieve the reusing and sharing of knowledge between ontologies has become the key to the development of semantic Web. Based on the analysis of the current technologies, a computation method of parsing the feature of concept in the ontologies and making use of the semantic similarity measurement techniques is proposed in the paper, in order to find the same or similar concepts pairs among different ontologies and then can be used in the ontology mapping, which has been proved feasible by experiments. © 2009 IEEE.

关键词： Ontology

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An efficient web service composition approach based on improved particle swarm optimization model

An efficient web service composition approach based on impro...

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International Conference on Management and Service Science, MASS 2009

作者： Yi, Liang Yingyuan, Xiao Tianjin Key Lab. of Intelligent Computing and Novel Software Technology Tianjin University of Technology Tianjin 300191 China Key Laboratory of Computer Vision and System Ministry of Education Tianjin University of Technology Tianjin 300191 China

ISBN: (纸本)9781424446391

Along with the rapid growth of the number of the available web services over the internet, the quality of services (Qos) becomes an imperative concern for service consumers and providers. How to differentiate their quality based on Qos criteria at web service level is a challenging issue. Considering that evolutionary algorithm has powerful ability of searching information, a new web service composition model under improved particle swarm optimization (IPSO) algorithm is presented in this paper. According to the non-functional attributes Qos of services, the model can select web services with optimal Qos and compose them into value-added web services. Furthermore, IPSO model not only can find the service with optimal Qos immediately but also can overcome the bottleneck of the standard PSO model. It can balance the exploitation and exploration and avoid premature convergence to some extent. As a result, web services can be invocated dynamically and be composed automatically and efficiently. The preliminary experimental results indicate that the web service composition approach based on IPSO model is applicable and feasible to the optimization of general service compositions. ©2009 IEEE.

关键词： Quality of service

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Ant colony algorithm for multilevel restricted searching area based on time dependent road network model

Ant colony algorithm for multilevel restricted searching are...

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IEEE International Conference on Software Engineering and Service Sciences (ICSESS)

作者： Yunyun Du Hongyun Ning Zhixin Yang Yanxia Cui Key Laboratory of Computer Vision and System Tianjin University of Technology Tianjin China

ISBN: (纸本)9781479983544

Aiming at the defect that the current time dependent road network model cannot fully reflect the information of the road attribute, and considering that the road weights of traffic congestion factors should be based on the characterization of travel time and the impedance function model of average speed relations, we put forward the improved road network model which is based on the edge cost analysis; Then we propose the ant colony optimization algorithm of a new hierarchical restricted search area and the corresponding dynamic switching strategy for traffic jams, when the search level can be dynamically adjusted by the road capacity of traffic congestion, we can achieve the purpose of improving the quality of route planning and avoiding the congested road. Our simulation experiment uses the scheme of random allocation speed value by speed fitting function, and provides the multi-population ant colony algorithm based on layered restricted searching area is significantly better than others.

关键词： Roads Analytical models Heuristic algorithms Computational modeling Algorithm design and analysis Approximation algorithms

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Improvement of Kerberos protocol based on dynamic password and “One-time public key”

Improvement of Kerberos protocol based on dynamic password a...

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International Conference on Natural Computation (ICNC)

作者： Yun-yun Du Hong-yun Ning Ping Yang Yan-xia Cui Key Laboratory of Computer Vision and System Tianjin University of Technology Tianjin China

ISBN: (纸本)9781479951529

We begin with overviews of the existing defects of the current Kerberos protocol and the shortage of the current improvement, and then we focus on the new method of the dynamic password and public key. On the basis of the original Kerberos protocol, firstly, we propose the usage of the Diffie-Hellman algorithm, and put the password in the token, then take the key which has added the dynamic factor as the sharing key between Client and AS, this improvement can fundamentally solve the password guessing attack. Secondly, we use the method of the ElGamal algorithm. For one thing, it will generate a new public key in each authentication, and put the new public key as the secret key of the information transmission between client and resource server, this method basically guarantees security of the information transmission; For another we use the random number, which is associated with the public key, to take the place of the time-stamp to prevent replay attack, it puts the random number and our key together to increase the ability of preventing replay attack. Finally, we analyze the example of the improvement which has been carried out. And the results show that the improved Kerberos protocol can ensure the security of the information and password.

关键词： Public key Protocols Servers Heuristic algorithms Authentication

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Determination of Price and Warranty Length in Supply Chain

Determination of Price and Warranty Length in Supply Chain

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Workshop on Intelligent Information Technology Application

作者： Yang Peng Junqing Sun Key Laboratory of Computer Vision and System Tianjin University of Technology Tianjin China

To stimulate consumers' purchase willingness, producers must determine the reasonable selling prices and warranty length for their product. Based on the diffusion mode, a dynamic Stacklberg game of price and warranty was researched in this paper. Through this model, we got some conclusion about the supplier and retailer's optimal strategy.

关键词： Warranties Supply chains Laboratories Costs computer vision Educational technology computer science education Marketing and sales Virtual manufacturing Information technology

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A pervasive service discovery strategy based on peer to peer model

A pervasive service discovery strategy based on peer to peer...

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作者： Zhang, De-Gan Chen, Xu-Yan Li, Chao Li, Lin-Qing Tianjin Key Lab of Intelligent Computing and Novel Software Technology Tianjin University of Technology 300191 China Key Laboratory of Computer Vision and System Ministry of Education Tianjin University of Technology 300191 China

ISBN: (纸本)9780955529337

In order to improve the efficiency of service discovery in the pervasive environment, this paper presents a new strategy of service discovery based on p2p network model. Reference the ring topology of chord algorithm and tbe algorithm used by DDT, tbe traditional single finger-table witch be maintained by each node in the ring will be changed into double finger-table: the Neigbbor-Finger-Table and Long-distance Finger-Table. The structure of the Neighbor-Finger-Table is the same as the traditional single finger-table's. The Long-distance Finger-Table can construct small-world network. Some similar algorithm uses random method to select remote access node, the new strategy is different from that, tbrough tbe calculation of the local node, it can ensure the scope of service can cover tbe entire network. The simulation shows the algorithm can effectively reduce the path length of service discovery, improve the service success rate, and control the path length of magnitude.

关键词： Small-world networks

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A new method for image fusion based on fuzzy neural network

A new method for image fusion based on fuzzy neural network

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作者： Zhang, De-Gan Wang, Yuan-Yuan Liu, Wei-Wei Zhang, Xiao-Li Tianjin Key Lab of Intelligent Computing and Novel Software Technology Tianjin University of Technology 300191 China Key Laboratory of Computer Vision and System Ministry of Education Tianjin University of Technology 300191 China

ISBN: (纸本)9780955529337

In pervasive computing paradigm, the image data obtained by a variety of multimedia, information equipment. In order to make use of these information reasonably and efficiently, a new method for image fusion based on fuzzy neural network has presented in this paper. It can fuse massive data from the multi-sensor image. Here, fuzzy neural network is a paraDel information processing model, there are more adaptive and self-organization, and can accomplish the complexity of real-time computing and mass data retrieval, it demonstrate its unique superiority of image understanding, pattern recognition and the handling of incomplete information. The fuzzy neural network system developed by us can be used in multi- sensor image fusion. Based on our experiments, it has been proved that the fusion is fast, effective, and can meet the real-time requirements of pervasive computing.

关键词： Fuzzy neural networks

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On structural properties of large-scale software systems: From the perspective of complex networks

On structural properties of large-scale software systems: Fr...

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6th International Conference on Fuzzy systems and Knowledge Discovery, FSKD 2009

作者： Sun, Shiwen Xia, Chengyi Chen, Zhenhai Sun, Junqing Wang, Li Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology Tianjin University of Technology Tianjin 300191 China PLA Troop 66366 Hebei 064100 China Key Laboratory of Computer Vision and System Ministry of Education Tianjin University of Technology Tianjin 300191 China

ISBN: (纸本)9780769537351

From the viewpoint of network, large-scale computer software systems can be regarded as complex networks composed of interacting units at different levels of granularity (such as functions, classes, packages, source files, etc.). In this paper, the collaboration relationships between header files in the source node of Linux kernels, which are representative examples of large-scale open-source software systems, are analyzed by constructing weighted network-Header File Collaboration Network (HFCN). Through using appropriate non-weighted and weighted quantities, the complex structural properties, the weight distribution and the impact between them of these networks are characterized and analyzed. These results can provide a better description of the organizational principles at the basis of the architecture of source codes in large computer software systems. © 2009 IEEE.

关键词： Complex networks

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A novel denoising method for infrared image based on bilateral filtering and non-local means

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Optoelectronics Letters 2017年第3期13卷 237-240页

作者：刘凤连孙梦尧蔡文娜 Key Laboratory of Computer Vision and System Ministry of Education of ChinaTianjin Key Laboratory of Intelligence Computing and Novel Software TechnologySchool of Computer and Communication EngineeringTianjin University of TechnologyTianjin 300384China

This paper presents an image denoising method based on bilateral filtering and non-local means. The non-local region texture or structure of the image has the characteristics of repetition, which can be used to effectively preserve the edge and detail of the image. And compared with classical methods, bilateral filtering method has a better performance in denosing for the reason that the weight includes the geometric closeness factor and the intensity similarity factor. We combine the geometric closeness factor with the weight of non-local means, and construct a new weight. Experimental results show that the modified algorithm can achieve better performance. And it can protect the image detail and structure information better.

关键词： bilateral filtering similarity pixel texture combine repetition neighborhood preserve noisy

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Cluster analysis of lung adenocarcinoma cells using PCA and confocal Raman spectroscopy 3

Cluster analysis of lung adenocarcinoma cells using PCA and ...

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3rd IEEE Advanced Information Management, Communicates, Electronic and Automation Control Conference, IMCEC 2019

作者： Yan, Jing Zhao, Meng Shi, Fan Wang, Zhe Yang, Yu Chen, Shengyong Tianjin University of Technology Key Laboratory of Computer Vision and System of Ministry of Education School of Computer Science and Engineering Tianjin300384 China Tianjin University of Technology School of Science Tianjin300384 China Tianjin Medical University School of Medical Laboratory Tianjin300203 China

ISBN: (纸本)9781728105130

This work analysis composition and structure of lung adenocarcinoma cells and normal cells based on confocal Raman spectroscopy. Firstly, confocal Raman spectra of 242 lung adenocarcinoma cells and 231 normal cells are obtained. In addition, Raman spectra are denoised and two evaluation criteria are used to evaluate the Raman spectra. Then, PCA is used to make principal component analysis of the spectrum and observe the process of spectral information changing with PCs. The best number of features is selected to prevent cross-sensitivity and obtain a better model. On this basis, a clustering model of PCA is constructed. The results show that accuracy of 84.57%, sensitivity of 88.02%, specificity of 80.95% and marshall correlation coefficient (MCC) of 69.21% are obtained. The results show that this method is effective in diagnosing cancer cells. Therefore, this model proves the potential of nondestructive detection of lung adenocarcinoma, and has a certain guiding role for the next classification and location. In addition, it can be easily applied in other fields in the future. © 2019 IEEE.

关键词： Raman scattering

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