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Table of Content

    28 February 2011, Volume 1 Issue 2
    信息安全
    Multistage Variable Xor Calibration and Encryption Method
    XIE Bu-sheng;ZHOU Qi-yun;LUO Xiao-ming
    2011, 1(2):  0-45,4.  doi:
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    In order to realize the requirment of the speed, safety which for the real-time business bank encryption and the automation management, this paper proposes a method that combines the secret key with the real-time cleartext, which can realize the multilevel variable-length xor encryption of the cleartext, the method can also realize the real-time encryption and decryption of the data, verify the completion of the data, manage the secret key automatically
    算法分析与设计
    Research on Parameter Identification of Ship-rudder Based on Hybrid Algorithm
    HAN Bing;LIU Hui;ZHANG Jun-chen;YANG Yu-hao
    2011, 1(2):  0-48.  doi:
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    Ship-rudder parameters characterize the variation caused by ships heading the key parameters. This paper presents hybrid algorithm based on genetic algorithm and model reference adaptive algorithm for parameter identification of ship-rudder. The experiments prove that this algorithm has high recognition accuracy, less demanding on the advantages of sampling time, basically to meet the needs of ship-rudder parameter identification.
    Display Method of Discrete Particle Systems Based on OpenGL and Its Improvement
    HU Ying-fang;HUANG Qiang-qiang;JIANG Shun-liang
    2011, 1(2):  0-57.  doi:
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    The sphere model is usually used to represent the particle in the discrete particle system so that the display list approach of OpenGL is adopted for high display performance. The sphere model of OpenGL is generated by dividing the sphere longitudinally and attitudinally, it is non-uniform (dense in the polar area and sparse in the equatorial area). A series of uniform triangular sphere model are generated by the exiting finite element pre-processing software and these sphere models are composed by less elements, the excellent display performance is obtained by these models and multi-display-list approach. The test cases show that the method is practicable and the display performance is enhanced significantly under the circumstance that the display list is unable to be used.
    Text Categorization in SMS Queries
    ZHAO Yan-ping;;XIE Li-cong
    2011, 1(2):  0-52,5.  doi:
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    Text categorization as the technological foundation is applied in such as information filtering, information retrieval, search engine, text database. Traditional pattern recognition methods deal with issues with the accurate model, it is difficult to have a good showing against the non-linear problem. The support vector machine has good performance in the dimension disaster, and has good applications in small samples. This thesis focuses on research of test categorization, and tests the methods applied in the telecom domain. Experimental results indicate that the method is very promising.
    Research on Integrated Trust Model Based on Fuzzy Theory on P2P Networks
    LI Bo;YAN Hao
    2011, 1(2):  0-64.  doi:
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    Based on the analysis of traditional trust models in P2P networks, this paper puts forward an integrated trust model based on fuzzy theory and traditional mathematical theory. The fuzzy theory is applied in the calculation of subjective trust between network nodes, so that the influence of complex network factors on trust can be handled better. By using traditional mathematical theory to calculate recommendation trust, the accurate trust value can be obtained and the burden of network will be minimized. In this model, ranked feedback mechanism and time factor are introduced, so the accuracy and sensitivity of trust value are improved. The simulation result indicates that this model has advancement compared to traditional models.
    Heart Surface Modeling Based on Finite Element Method
    XIAO Peng-fei
    2011, 1(2):  0-60,6.  doi:
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    The method of the finite element equation of cardiac surface motion is constructed using the finite element method and the biological mechanics principle. The rapid generation of tetrahedral mesh for heart modeling of the finite element is used to simulate heart’s dynamic deformation. Commencing on the 3D surface restoration, strain analysis and 3D motion modeling, the stress distribution and deformation of the cardiac during systole are analyzed and calculated. It effectively simulates dynamic deformation of the cardiac. The experimental results also show the effectiveness and validity.
    Study of OpenCL for Accelerating Ray Tracing
    HUANG Tao
    2011, 1(2):  0-69.  doi:
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    Nowadays Graphics Processor Units(GPU)’s compute capability let the execution of complex and parallel algorithm, such as kD-tree ray tracing techniques for real time 3D scene rendering become more available. GPUs are optimized to render polygons, and programmable vertex shader, geometry shader, and pixel shader have made it widely applicable for unified compute. This paper demonstrates kD-tree traversal algorithm based on OpenCL, increases the performance of intersection test and enables the stream processor and memory work more efficiency, consequently, improves the ray tracing system.
    软件工程
    Design and Implementation of Agricultural Information Call Center
    LI Mu-hua;ZHOU Zhi-peng
    2011, 1(2):  0-72.  doi:
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    Building agricultural information call center is an important method to realize agricultural informatization. This paper introduces a realization schema for agricultural information call center, and describes main working principle and key technology in use at first. And then it introduces the main components of the system, describes the main functions of the system, explains the main implementation method for the system. This paper discusses expanding the system functions at last.
    A Brief Talk about Bottom-up Shell Script Programming and Efficiency Optimization
    JIANG Song-bo;NI Zi-wei
    2011, 1(2):  0-76,8.  doi:
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    Shell scripts run in the interpreter mode, which has always been inefficient. Inefficient design will further affect the efficiency performance of the Shell script. This paper analyzes the characteristics of Shell language and its applications and proposes a “bottom up to Shell scripting” idea based on the perspective of hierarchical design. At the same time, this paper puts forward a comprehensive method, that is from the “external system environment” to “internal execution model”, to mastering Shell utilities. The case fully proves that the idea and methods about bottom-up Shell scripting can effectively improve the efficiency of the script.
    Static Detecting Method for Fault Model
    XIA Yu-hui ;LI Ming;WAN Lin;WANG Hong-yan
    2011, 1(2):  0-80.  doi:
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    Software testing is an important means to eliminate software faults and enhance software quality and reliability. Software testing based on testing model is the important testing method in code phase during the software development life cycle. This testing method has sound characteristics, such as testing source code fast and peering into more of a program’s dark corners with less fuss than dynamic analysis. Therefore, a special static analysis method is taken to implement code testing. The paper discusses the disadvantage and limitation of the traditional software testing method, builds software’s fault models, on the basis of the defect-oriented testing strategy, it adopts synthetically syntax tree and controlling stream graph and puts forward a static testing method, and presents an automatic fault detection algorithm. Based on this method, a software testing system is designed and developed, experiment results are obtained and comparison analysis is made, providing a direction for further study.
    计算机控制
    Dynamic Pulse Wave Processing and Pulse Rate Extraction Based on Kalman Filter
    JIANG Wei-ping;JIANG Ping;ZHU Jin;WANG Xiao-nian
    2011, 1(2):  0-88,9.  doi:
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    The dynamic measurement of pulse suffers, distortion and even peak-loss due to movement and other disturbances when using piezoresistive sensors which also distort the extracted pulse rate. This paper detects the pulse peak using a dynamic threshold combining an estimation of the peak position and the calculated instantaneous pulse rate. To fulfill the adaptive filter based on measurement of movement, it uses an accelerometer to detect the movement of the user and dynamically adjusts the reliability of the instantaneous pulse rate with the measured acceleration and with the averaged value derived from the Kalman filter. The result of experiments shows that the method is efficient in eliminating the movement noise, and generates a more accurate real-time measurement of the pulse rate.
    软件工程
    Design of Embedded Workflow System Based on Status
    LI Hong-bo
    2011, 1(2):  0-83.  doi:
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    Workflow system now became an important component part of information construction. This paper gives out a design idea of workflow which can be embedded into the business system, also shows out the system architecture, key methods and data modular interface. This workflow system can be service for business system, also can be embedded into business system, make a total solution, offers convenience to business system.
    计算机控制
    Design and Realization of Main Monitoring Software About High Speed Videograph
    XIONG Zhi-hui
    2011, 1(2):  0-96.  doi:
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    To achieve high precision measure of rocket, high speed videograph instead of traditional high speed photography. Main control software collects information from its sub station and computes synthetically. And then, the result of computation is sent to central station as an integrated parameter for the safe control of shooting range, which also provides decisive information for supervision system. The research on the main monitoring software fills up the blank of real time trajectory of shooting range on the takeoff stage.
    Design and Implementation for Flight Control Computer Acquisition and Processing System
    XU Xiang-rong;CHEN Chang-tao;OUYANG Yue-hua
    2011, 1(2):  0-91,9.  doi:
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    The flight control computer on the UAV attitude and track information collection and processing requirements, this paper presents the DSP TMS320LF2407A as a platform for analog communications, switch collection, and processing of detailed designs. The programs described are analog communications, switch interface circuit, chip select control logic, and type 8259 CPLD interrupt control logic thinking, hardware filtering, and anti-jamming software ideas. The acquisition and processing system hardware interfaces are simple, operate in real-time and have strong anti-interference characteristics. Strong engineering is applied.
    Design of Equipment Room Environment Monitoring System Based on TCP/IP
    LI Da-lian
    2011, 1(2):  0-99.  doi:
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    This paper designs an equipment room environment data acquisitions monitoring system based on TCP/IP, deploys monitoring system based upon the exist network, gives out the design ideas based on TCP, protocol transform method and system functions description. The scheme has many advantages, such as expansible, low-cost, maintainability, short-period of deployment and so on.
    Development of Constant Pressure Water Supply Host Computer Control System Based on PLC
    CHEN De-nan
    2011, 1(2):  0-102.  doi:
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    This design realizes serial communication between Simens S7-200 series PLC based on VB 6.0 and the superior machine, which is for the purpose of enhancing the PLC control system’s real-time monitoring, perfecting laboratory bench control system’s control function. At the same time, it manufactures the friendly man-machine monitoring interface using VB 6.0, establishes the input parameter and real time display experiment result. On the other hand, serial communication ActiveX which provides through VB 6.0 controls MSComm, it uses the free communication protocol to realize correspondence between PLC and the superior machine, enables the superior machine to gain the related empirical datum to carry on the memory and processing promptly. This design is applied in the constant pressure water supply system, carries on the monitoring to water pump’s movement situation.
    操作系统
    Jini Technology-based RFID Middleware Platform
    LI Shun-hu;LIU Fang
    2011, 1(2):  0-110,.  doi:
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    With the development of social productive forces and the advances of science and technology, Radio Frequency Identification(RFID) technology has been widely applied in recent years for its significant advantages. In order to make use of RFID systems better and faster to adapt to more applications, it is necessary for us to improve and optimize the existing RFID middleware. This article is mainly for the optimization and improvement of RFID middleware communication mechanism. Based on the Java-based distributed system named Jini, this paper proposes the architecture of Jini-based RFID middleware, using RMI communication mechanism to implement the automatic identification of RFID device (virtual device) in middleware, realizing automatic configuration and management of RFID middleware as well as the “plug and play” of RFID devices. Meanwhile, the management of RFID middleware in the Jini environment is further optimized, making the configuration and management of RFID middleware based on EPCglobal standards more efficiently in a distributed environment. Finally, through test cases, the “plug and play” of the RFID middleware is verified in the Jini platform. The paper provides a new idea and method for RFID middleware and modern technology.
    Review of TinyOS for Wireless Sensor Networks Operating System
    WU Xiao-na;WANG Man
    2011, 1(2):  0-105,.  doi:
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    TinyOS is the specific operating system for wireless sensor networks. First, this paper introduces the key techniques of TinyOS, such as component-based model, scheduling mechanism, communication model and energy management. Then it briefly compares with the other two operating system μCOS-II, μT-Kernel about RAM/ROM, realtime performance, low power etc. Finally, TinyOS shortcomings and exist problems are summarized.
    网络与通信
    Design and Implementation of Pretreatment System of iTV
    KANG Wen;CHEN Wen-jie
    2011, 1(2):  0-130.  doi:
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    iTV is a new video flow service based on IP network which has launched in recent years. In order to strengthen the speed of their customer service response, processing capacity, and to improve the quality of service and customer perceptions, on the basis of detailed analysis of the relevant requirements, this paper designs and implements the iTV business pretreatment system which is based on the .NET platform. The system includes some modules such as basic management, fault management, operation management and knowledge management, and introduces the main technical characteristics and function of the system.
    Research on Data Aggregation in Wireless Sensor Networks
    SHAO Kai-li;ZHOU Xiao-jia;YAN Bin
    2011, 1(2):  0-116.  doi:
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    Data aggregation is the front line of technique, more and more academic researchers and people from industry are engaged in developing wireless sensor networks due to the great promise and potential with various applications. Aiming to the severe energy and computing resource constraints of wireless sensor networks(WSN), data aggregation is a very important technique that assists it in decreasing the energy consumption, cutting down time delays and decreasing overhead of the transmission during the process of data collection in a wireless sensor networks. This paper introduces the function and significance of data aggregation, specifies the existing and typical classification of data aggregation, points out the direction and prospects of data aggregation in WSN.
    Research on Module of DiffServ over MPLS
    QIN Nian;JI Meng
    2011, 1(2):  0-120.  doi:
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    The rapid development of the Internet attracts more and more attention of QoS. Basing on the traditional IP network, QoS can hardly get the highly performance efficiently. As one of the core technology in the Next Generation Network (NGN), Multi Protocol Label Switching (MPLS) plays a great important role in QoS and Traffic Engineering (TE).This article proposes the QoS module which combines the label switching of MPLS network and DiffServ, and the function of this model is proved by the data of some experiment.
    Design and Implementation of Business Platform Interface Under Telecom IPTV Pretreatment System
    WANG Zheng-bin;TAO Jun-cai
    2011, 1(2):  0-123.  doi:
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    In order to deal with telecom background processing ability front to customer service, to achieve IPTV business complaints pretreatment, increase complaints response and processing speed, comprehensively enhance the customer service quality and customer satisfaction, on the actual needs of the user, the IPTV service platform and IPTV pretreatment system interface is designed and implemented which is based on .NET platform, its main features include real-time data, bulk data and operation commands of interaction and analysis. This article describes the related requirements, design, and implementation method of the main technical characteristics.
    Multi-conditioned Query Based on DataWindow.NET
    HUANG Kun;WANG Jia-wei
    2011, 1(2):  0-127.  doi:
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    In B/S Mode, multi-conditioned query is usually realized by some common data controls in C#, however, the entire implementing process of it is complicate. This paper introduces the implementing process of this kind of query model, which is based on DataWindow.NET. It includes techniques and methods of how to design WebDataWindow control, how to create controls by JavaScript, how to design a page displaying query results. Using this model, the developing speed and query efficiency of B/S application program can be improved greatly.
    Research on Bandwidth Scheduler Policy of EPON Uplink
    HOU Lin-lin;WANG Wen-li
    2011, 1(2):  0-127,.  doi:
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    EPON has become a primary one for the next generation access network as a optical-fiber-based access technology. The competitive mechanism of uplink bandwidth in EPON makes uplink bandwidth allocation algorithm turn into a hot issue in academe. This paper makes a summary about uplink bandwidth schedule method in EPON, puts forward a new uplink bandwidth schedule policy, easy to implement and achieve justice and quality of service.
    Research on Network Service Status Monitoring and Control
    LIU Gui-feng;TAO Yi
    2011, 1(2):  0-134,.  doi:
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    In nowadays, almost all of the Network Services work in an uninterrupted way. Consequently, much more resources are used to monitor whether these services are working normally so as to handle the exception at the earliest time when they became abnormal. Against this problem, this paper designs a Network Service Status Monitoring and Control System (NSSMAC) based on analyzing the principles of network services status monitoring technology. NSSMAC can monitor many kinds of network service, when one network service works in abnormal status, NSSMAC will try to recovery it automatically. If it fails, NSSMAC would send a report to system administrator immediately to request dealing with the exception manually. Evaluation shows that NSSMAC can save resources effectively. NSSMAC provides a good solution for large-scale network service status monitoring.
    Safety Analysis of Network Information System in Military Hospital
    LI Na;LU Sha-lin
    2011, 1(2):  0-141.  doi:
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    With the more application of network technology in hospital, its safety has been emphasized. Applying features are investigated, and network safety is analyzed from the hardware system, software, environmental and personal factors. Finally, threats and corresponding safety strategies are put forward.
    Implementation of Intelligent Mobile Terminal Mixed Position Data Collection
    LIU Ying;HE Yun;LI Hui;YAO Neng-jian
    2011, 1(2):  0-144,.  doi:
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    Position data collection plays an important role in the location-based services, the intelligent mobile terminal localization ways are mainly independent GPS positioning and mobile network GPRS auxiliary positioning in two ways. The two ways have their advantages and disadvantages, this paper designs a method combining the advantages of the two ways, the intelligent mobile terminal positioning data collection method can effectively fuse two kinds of data. Practice shows that the method has the advantage of technology and the market prospect.
    Application Research on Asynchronous Tree Based on Ajax Technology
    DAI Wei;JIANG Yu-fang
    2011, 1(2):  0-149,.  doi:
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    Ajax technology is a method that submits and accesses Web server, and it may increase client operability and improve aesthetic. This article introduces concept of Ajax and describes implementation of asynchronous tree on page by JQuery Ajax Framework.
    Campus BBS Filtering System Based on Flexible Pattern Matching in Strings
    PENG Wen-hui;;WU Xiao-gang;;JIANG Hua
    2011, 1(2):  0-147.  doi:
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    Young students are of the Internet’s largest user group in China. This paper designs combined filtering system of campus BBS for which students to use more. This system is mainly supported by hierarchical and flexible pattern matching in strings, in order to meet the needs of filtering harmful information in the campus BBS.
    Design and Implementation of Log Record Based on Struts2 Interceptor
    ZHAO Chun-liang;ZHANG Jian-guo;MENG Chen
    2011, 1(2):  0-153.  doi:
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    Log record is an essential function in Web software project and choosing an appropriate design to achieve is particularly important. Based on good design ideas of Struts2 interceptors, this article expounds the basic process of logging, applies interceptors of Struts2 to log record and gives the detail process of design and implementation.
    应用与开发
    Study on Informational Platform of Textbook Subscription Management in Colleges and Universities
    LI Wen-bin
    2011, 1(2):  0-156.  doi:
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    This paper studies how to construct colleges and universities teaching materials subscription management information platform currently, proposes teaching materials management informatization construction significance, objective and key technology to adapt to the teaching reform process, reduces the labor intensity of teaching materials management staffs, improves teaching subscription materials management level.
    Design and Implementation of Perambulation Inspection System Based on Smart Client
    SUN Hui
    2011, 1(2):  0-159,.  doi:
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    To solve the problem of health check system which can not be used offline while doctor is out; the smart client can realize in perambulation inspection system, the system interacts with database through integrating Web Service. Simultaneously, the overall design of the system and the diagram of collectivity structure are given, combined with relevant technologies the method of statistic is emphasized.
    Design of Online Assignment System Based on MVC
    QIN Kai-xian;LU Hao
    2011, 1(2):  0-163.  doi:
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    The online assignment system utilizes a .NET technology framework, a design and development project based on ASP.NET MVC pattern and a LINQ technology of accessing database. An online assignment management system is implemented by including the following key functions of assignment management, arranging assignment, submitting assignment, grading assignment, assignment statistic and searching scores, and effectively promotes the construction of course assignments institutionalized, standardization and management of the construction of the informatization.
    Design and Implementation of RFID Recognition System Based on Bus Depot Management
    YAN Lin;SU Yan-mang;SONG Tao;ZHAO Guo-zheng
    2011, 1(2):  0-170.  doi:
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    LPC2378 is the core MCU of the RFID recognition system based on bus depot management. It can autorecognize the information of the car which in this depot and transfer them with wireless equipment to the far-end sever. Using these information man can manage the hole depot. This article discusses the hole system, including the hardware and the software design, also makes the hardware and the software in end-product.
    Application Research on RFID and J2EE Technologies in Fishing Vessels Management System
    SUN Geng;ZHAO Shu-ping;FENG Yan-hong;FENG Yu-qin;JIANG Feng-jiao
    2011, 1(2):  0-166,.  doi:
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    This paper presents a suit of scheme for solving the problem of fishing vessels management and illegal action of false license plate. It discusses the system design idea from software and hardware aspect. Using Radio Frequency Identification (RFID) and J2EE technologies, fishing vessels management system is researched and built. It can identify the vessels’ ID and manage basic data of vessels. The system provides convenience for departments related to fishing vessels, also safety and efficient guarantee for fisheries production.
    Analysis & Design of UML-based E-commercial Online Shopping System
    HE Yao-guang;KANG Wen;ZHAN Xian-xin;WEN Xiao-qun
    2011, 1(2):  0-174.  doi:
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    With the object-oriented technology’s unceasing development, it has become the mainstream of the current software project development to use the object-oriented thought to carry on the system modeling. This article researches the process of the information system modeling with UML and the model selection, and unifies the advantage of UML system modeling, takes the E-commerce on-line shopping system as example, gives the completely process of realizing UML-based information system modeling.
    图像处理
    Study on Generation Technology of CAPTCHA Based on Multi-layer
    HU Zheng-bing;LU Hong;LIAO Long-long
    2011, 1(2):  1-4.  doi:
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    CAPTCHA has become a kind of tool that many Web sites use to prevent malicious programs from automatically registering or logging in, irrigation and other malicious network attack. However, the existing CAPTCHA is easy to be identified by computer malicious programs, but it is difficult to distinguish information of CAPTCHA in the image for user. Therefore, this paper studies a kind of CAPTCHA based on multi-layer. It is made of prospects layer and interference layer. The prospects layer is used to display random verification code and the interference layer is used to display interference Character. And .NET technology is used to implement the CAPTCHA. Finally, efficacy and safety of the CAPTCHA based on multi-layer is analyzed by using PWNtcha. The algorithm not only has high efficiency and safety, but also users can more easily identify.
    Tensor-based Vehicle Detection in Highways Surveillance Video
    GAO Jun-jun;WANG Chuang-xin
    2011, 1(2):  5-7.  doi:
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    The highways vehicle motion activity and characteristics of surveillance image sequences are analyzed carefully. For the fast motion target, the motion detection using background subtraction or consecutive frame difference appears usually virtual shadow, the structure tensor-based vehicle detection and temporal optical flow analysis are proposed for highways vehicle motion detection, the experimental results show that the algorithm of this paper for detecting highways vehicles motion is more accurate. The results provide a reliable foundation for the next motion tracking.
    Design of Medical Image System Based on MITK
    DANG Guang-lei;WEI Wei
    2011, 1(2):  8-10.  doi:
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    In order to enrich medical images of data information, the paper designs a picture processing system based on the algorithm platform MITK (Medical Imaging ToolKit) with Visual C++ 6.0, which can realize the 3D reconstruction and image segmentation of medical image datasets. And achieves a better result, meets a part of users’demand.
    Some Keys to Application of ICA in Human Face Recognition
    LI Wei;YANG Qing-hua
    2011, 1(2):  11-13.  doi:
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    Independent component analysis(ICA)now is widely applied in pattern recognition domain, such as face recognition. Firstly, the image data can be preprocessed and dimension is reduced, and then the independent image basis can be got by ICA. Finally, face recognition is processed in the subspace. In the experiment, the influence of training samples, man labels and independent basis numbers to recognition ratio are compared and analyzed.
    A Digital Image Zero-watermarking Scheme for Resisting Geometric Attacks
    ZHANG Wei-dong;DUANMU Chun-jiang;LI Jun-bo
    2011, 1(2):  14-17.  doi:
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    This paper presents a zero-watermarking scheme based on the overall features of the image and timestamp. Firstly, an image feature matrix is generated according to the original image. Then the watermark image is expanded to the size of the image feature matrix. After that, the XOR operation is carried out for the image feature matrix and the expanded,and encrypted watermark image. This operation result is saved as a key to detect the watermark. At the same time, the scheme employs the techniques of the watermark embedding with image expansion, and the normalized image detection, so that the image has a strong resilience for rotation and shearing attacks. Experiments result show that the proposed scheme is robust to the attacks of normal image processing ways and geometric transforms, and thus this schme is feasible and practical.
    A Behavior Animation Developing Tool for Emotion Driven 3D Virtual Character
    ZHU Jian
    2011, 1(2):  18-22.  doi:
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    Emotion is an important aspect of human intelligence and has been playing a significant role in creating virtual agent. Taken into account the influence of cognition to the emotion, an improved computing emotional model and a new form of behavior model are proposed. The paper designs the idiographic environment of emotion, and manages the behaviors through the form of behavior-tree to create the material and realistic virtual character emotion behavior, and brings forward the three-level structure of emotion formed as “personality-emotion-mood”, then at last achieves an experimental system which proves the emotion model and behavior organizing model to be effective in creating intelligent emotion behavior in the virtual environment.
    人工智能
    Neural Network Ensemble Model with Specimen Reconstruct Based on Projection Pursuit and Particle Swarm Optimization for Rainfall Forecasting
    WU Chun-mei;WU Jian-sheng
    2011, 1(2):  23-28.  doi:
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    First of all, learning matrix of neural network is got by projection pursuit and particle swarm optimization algorithm, which particle swarm optimization algorithm optimize projection index from high dimensionality to a lower dimensional subspace, and then many individual neural networks are generated by samples reconstruction based on negative correlation learning method. Secondly, the result of ensemble is generated by projection pursuit regression based on particle swarm optimization algorithm. Finally, the forecasting model is established by neural network ensemble with specimen reconstruct based on projection pursuit and particle swarm optimization. The method is used as an alternative forecasting tool for a meteorological application in the monthly precipitation forecasting of the Guangxi region. The results show that the method can effectively improve the generalization ability of the system in achieving greater forecasting accuracy and improving prediction quality further.
    FMI: A Mobile Mechine to Mechine Community System to Find Missing Items
    SUN Shu-rong;WANG Yong-li
    2011, 1(2):  29-32.  doi:
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    In order to find the missing valuables quickly, this paper presents a community management system framework to support mobile searching missing items. On the basis of mobile phones equipped with RFID readers and items carried EPC tags, an efficient and flexible mobile interactive mechine to mechine community system for lost and found is proposed, which use mobile computing, augmented reality, and SOA technique. This paper describes the design concept of the community systems and key technologies, and discusses the method concerning upgrading the system performance and reducing the burden of the user. The system is useful to explore the practical application of internet of things technique. It can significantly enhance the comfort of community life.
    Research on Feature Extraction of Contradictory Information
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    2011, 1(2):  33-36.  doi:
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    Changing contradictory problems into compatible ones is an important function of computer intelligence, and also one of core problems of artificial intelligence. This paper studies feature extraction of contradictory information from the point of view regarding to the development of information intelligent disposal. The method, proposed in this study, is a useful tool to solve contradictory problems using computers and establishes basic conditions for improving the intelligence level of computers.
    Design and Research on Non-war Operation Professional Training Intelligent System
    LIU Yu-dong;ZHAO Shui-ning;LIU Jun-tao;MU Xin-guo;FAN Xiao-xiao
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    信息安全
    Research on False Positive Rate of Intrusion Detection System Based on Danger Theory
    LI Xue-bao
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    It is a common problem that false positive of intrusion detection system is high. This paper analyzes the reason of intrusion detection system to produce false positive from the perspective of probability theory, and demonstrates that intrusion detection system based on danger theory reduces false positive rate effectively and ensures detection rate at the same time.