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ABSTRACT: The paper introduces a model for privacy preservation clustering which can handle the problems of privacy preservation,distributed computing. First, the latent variables in Latent Dirichlet Conditional Naive-Bayes Models(LDCNB)are redefined and some terminologies are defined.Second, Variational approximation inference for LD-CNBis stated in detail. Third, base on the variational approximation inference, we design a distributed EM algorithm for privacy preservation clustering. Finally, some datasets from UCI are chosen for experiment, Compared with the distributed k-means algorithm, the results show LD-CNB algorithm does work better and LD-CNB can work distributed,so LD-CNB can protect privacy information.
Communication Software and Networks, International Conference on. 02/2009;
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ABSTRACT: In this article an alarm information automatic classification system has been designed according to the situation that almost all alarm information in integrated emergency response system have been classified manually. The automatic classification system could make correct and rapid classification of the unstructured alarm information, and because it is unnecessary to do manual intervention in this classification system, it becomes simpler and quicker to perform the classifying process, and further more the effects caused by man's subjective factors on the part classification are avoided. So the system will be useful to integrated emergency response system and provide enough support to the management of alarm information and the choice of preparedness.
Communication Software and Networks, International Conference on. 02/2009;
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International Conference on Scalable Computing and Communications / Eighth International Conference on Embedded Computing, ScalCom-EmbeddedCom 2009, Dalian, China, September 25-27, 2009; 01/2009
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ABSTRACT: A resolution of Distributed Data Acquisition System for the use of E-Commerce is discussed in this paper. The scheme of this resolution is illustrated and relative features are presented. The hardware realization of Ethernet communication by using TMS320C5409 DSP controlling net chip 8019 AS was introduced. The data transition was based on UDP and the method and announcement was discussed in detail. This paper offers a scheme for distributed multi-spots data acquisition, which is often used as the foundation of such applications like remote data exchange and share. E-Commerce is one of these kinds. The scheme has its obvious virtue of low price and high-speed for data acquisition and processing. It may be useful reference for research in E-Commerce and related fields.
Electronic Commerce and Security, 2008 International Symposium on; 09/2008
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ABSTRACT: Data enriching theories of commercial information are studied. The data enriching algorithm is defined: the optimization discernibility set is acquired by improving discernibility matrix first, and then the algorithm is called recursively by using frequency information of attribute, finally the enriching attribute set is found out. The algorithm is applied to data enriching of user access patterns in e-commerce, the theoretic analysis and simulation instance shows that this algorithm is feasible and effective in practice.
Electronic Commerce and Security, 2008 International Symposium on; 09/2008
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ABSTRACT: This paper proposes a XML security E-commerce mode, which deals with the security problems of data transmission in E-commerce. Comparing with the traditional methods, the new mode can operate any parts of the data documents according to userspsila desires, and to encrypt and authenticate in arbitrary sequences. For its high flexibility, the new mode is able to satisfy the complex requirements of data transmission in E-commerce well.
Electronic Commerce and Security, 2008 International Symposium on; 09/2008
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PACIIA 2008, Volume 2, 2008 IEEE Pacific-Asia Workshop on Computational Intelligence and Industrial Application, 19-20 December 2008, Wuhan, China; 01/2008
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ABSTRACT: In this paper, we designed a photoelectric guidance system for helicopter landing and recovery. Two infrared CCD cameras were used to image the four beacons lighted by semiconductor lasers on both sides of the helicopter. The beacon position and attitude were extracted by image process and target identification. Using the dual camera photogrammetry(DCP) model established, the real-time helicopter coordinates were calculated relative to the landing point. Using the high performance DSP system, two channel of image signal were collected, detected and tracked in real time and the experimental results were displayed. The hardware-in-the-loop experiment shows that the measurement accuracy of distance can reach plusmn5 cm and the measurement accuracy of angle can reach plusmn3degin the guidance system. The errors meet the accuracy requirements of safe landing for helicopters.
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on; 08/2007
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ABSTRACT: The efficiency of mining association rules is an important field of Knowledge Discovery in Databases. The Apriori algorithm is a classical algorithm in mining association rules. This paper presents an improved Apriori algorithm to increase the efficiency of generating association rules. This algorithm adopts a new method to reduce the redundant generation of sub-itemsets during pruning the candidate itemsets, which can form directly the set of frequent itemsets and eliminate candidates having a subset that is not frequent in the meantime. This algorithm can raise the probability of obtaining information in scanning database and reduce the potential scale of itemsets.
Service Systems and Service Management, 2007 International Conference on; 07/2007
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ABSTRACT: Wireless distributed network is a distributed system based on wireless communication technology to achieve resource share and cooperation. With the gradual consummation of wireless communication network, wireless distributed network has played a more and more important role in distributed testing and controlling field. SMS is a simple text transfer protocol on GSM network. It has been widely used in distributed testing and controlling field due to its wide coverage, cheap price, convenience to use. In these systems, synchronization has become an important issue for the whole system. In this paper, we have come up with some algorithms that are easy to fulfill without sacrificing much to the system’s performance. These algorithms also have such advantages as low cost in practice. Our algorithms have a positive meaning to researchers in this field.
Communication Software and Networks, International Conference on.
