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2010 4th International Conference on Intelligent information Technology Application (IITA2010)

作者： Hongbo Xu college of computer and information Engineering Harbin University of Commerce Harbin China

Querying k nearest neighbors of query point from data set in high dimensional space is one of important operations in spatial database. The classic nearest neighbor query algorithms are based on R-tree. However, R-tree exits overlapping problem of minimum bounding rectangles. This causes its time complexity exponentially depends on the dimensionality of the space. So, the reduction of the dimensionality is the key point. Hilbert curve fills high dimensional space linearly, divides the space into equal-size grids and maps points lying in grids into linear space. Using the quality of reducing dimensionality of Hilbert curve, the paper presents an approximate k nearest neighbor query algorithm AKNN, and analyzes the quality of k nearest neighbors in theory. According to the experimental result, the execution time of algorithm AKNN is shorter than the nearest neighbor query algorithm based on R-tree in high dimensional space, and the quality of approximate k nearest neighbors satisfies the need of real applications.

关键词： k nearest neighbors reduction of dimensionality Hilbert curve approximate algorithm

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The Facial Expression Recognition Technology Based on D-S Theory with Weighting Coefficients

International Journal of Systems and Control

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International Journal of Systems and Control 2008年第1期 35-41页

作者： MA Xirong, WANG Rong , LIANG Jinglian college of computer and information Engineering, Tianjin Normal University, Tianjin 300387, China

This paper proposes a kind of facial expression recognition technology based on the D-S theory with weighting coefficient of information fusion, in the background of Affective Computing theory, moreover design and implement the system FERFIF. In the part of facial expression recognition, the training for the classification uses JAFFE expression library. First, using color matching and brightness match, this method divides face image into the eyes and mouth images, then identifies facial expression respectively by trained eyes SVM classifier and mouth SVM classifier, in the end, fuses the identification using D-S theory. Because the eyes and mouth expressed different amount of information, in the integration, the two groups’ data were weighted. The experimental results show that recognizing the two parts of image, in terms of training or recognition, the data dimension greatly reduced and increased efficiency. Moreover the improvement of weighting data makes better result than before in recognition rate.

关键词： D-S theory with weighted facial expression recognition Affective Computing information Fusion

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Design and Research of WIA-PA Network

Design and Research of WIA-PA Network

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2010 ETP/IITA Conference on Telecommunication and information(TEIN 2010)

作者： DU Xiaojie1 college of computer and information Science Southwest University swu ChongQing ChinaLIU Feng2 college of computer and information Science Southwest University swu CongQing China

WIA industrial wireless network technology is a highly reliable, ultra low-power intelligent multi-hop wireless sensor network technology;the technology uses self-organizing, self-healing mechanism Intelligent Mesh Network Routing. So, the design of routing algorithm is the key of WIA-PA network communication performance. This paper proposed the idea of multiple backup routing algorithms, combining Ad Hoc Network Routing Protocol Algorithms and improving DSR routing algorithm, and so making the algorithm to go to the WIA-PA Networks.

关键词： WIA-PA DSR WIA-PA multi-path routing thought

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Towards Consistent Order Transaction Management with B2X Middleware

Towards Consistent Order Transaction Management with B2X Mid...

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2010 Second International Conference on Communication Systems, Networks and Applications (ICCSNA 2010)

作者： Bin Xu college of computer Science & information Engineering Zhejiang Gongshang University Hangzhou 310027 China Lan Li college of computer Science & information Engineering Zhejiang Gongshang University Hangzhou 310027 China

Customer’s request becomes more various and the order transaction becomes larger due to the globalization of E- commerce. Strategic alliance and collaboration should be formed by complementary merger since the order transaction process has been changed from a traditional portal to the collaboration between enterprise platforms. A B2X middleware is introduced to support collaborative E-business by strategic alliance. Consistency of order transaction processing from different ERP interfaces with the B2X middleware is analyzed and related solutions are proposed to make sure the distributed order transaction is consistent during the process with B2X middleware.

关键词： B2X business orders consistency control distributed database

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A Real-time Data Monitoring System Based on Sensor Network Protocol

A Real-time Data Monitoring System Based on Sensor Network P...

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2009 ISECS International Colloquium on Computing, Communication, Control, and Management

作者： ZHAO Wenmin, XING Jianguo college of computer and information Engineering Zhejiang Gongshang University Hangzhou, China JU Chunhua college of computer and information Engineering Zhejiang Gongshang University Hangzhou, China

According to sensor networks’ characteristics and their requirements on field real-time data monitoring, a kind of lightweight sensor network protocol is proposed in this paper. In this protocol several frame types are introduced into a sensor network’s link layer. A new coming node registers itself as a slave node by sending an identify frame. The master node finds slave nodes out of function in time by a master/slave communication mode, so that it is satisfied with the dynamic changing situation of the sensor network. An event/action model is introduced into the sensor network’s application layer. And event sources and actions are defined for node channels, so that the channels are encapsulated with attribute, events and methods. The response speed to asynchronous events is improved by the event driven mode. Finally, A specific implementation and application example using the protocol is also carried out in this paper, and the effectiveness of protocol is validated on CycloneII development boards.

关键词： Sensor network Protocol Data Monitoring, event/action model SOPC

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X3D Experiences On A Hydro Junction Digital:A Case study of Three Gorges Dam

X3D Experiences On A Hydro Junction Digital:A Case study of ...

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E-Business·Creative Design·Manufacturing——2009 IEEE 10th International Conference on computer-Aided Industrial Design & Conceptual Design（CAID&CD’2009）

作者： Chunlai Chai college of computer Science and information Engineering Zhejiang GongShang University Hangzhou China

This work presents our experience in using Virtual Reality techniques to digitally reconstruct the World famous Hydro Junction--Three Gorges *** paper discusses the work undertaken by the China Water Museum to develop X3D-based Water Museum Virtual Reality *** system is to deal with difficulties in applying 3D information system in virtual reality experience,which is written in Extensible-3D（X3D）and *** order to achieve an accurate 3D representation,the process was divided in phases to better structure and fundament such development:historical data gathering and analysis;3D modeling and;interactive immersive *** to the nature of this project,different people from different areas of expertise were involved,working together in a unified development *** is our opinion that the online design review has achieved its *** we identified some features that would improve collaboration such as digital 3D annotation and support for online collaboration in current X3D browsers.

关键词： Virtual Reality X3D 3D Modeling,VRCluster Graphics Rendering

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保持轮廓清晰的有理-线性彩色图像内插放大方法

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系统仿真学报 2004年第12期16卷 2857-2859,2863页

作者：胡敏檀结庆合肥工业大学计算机与信息学院合肥230009

提出了一种有理-线性的自适应彩色图像向量插值方法。该方法是将数字图像的每一个象素看作是平面域的关于RGB三原色的一个向量,首先结合图像的局部和边缘特征对图像进行N×N块划分,根据图像的块特征构造二元向量Newton-Thiele型有理插... 详细信息

提出了一种有理-线性的自适应彩色图像向量插值方法。该方法是将数字图像的每一个象素看作是平面域的关于RGB三原色的一个向量,首先结合图像的局部和边缘特征对图像进行N×N块划分,根据图像的块特征构造二元向量Newton-Thiele型有理插值曲面或Newton-Newton插值曲面,然后对插值曲面进行采样以实现图像的缩放。采用文中的算法得到的放大图像,不仅可保持轮廓的清晰,而且可得到较好的彩色图像视觉效果。最后试验证明,该方法比常规方法产生的放大图像质量高。

关键词：向量自适应有理插值线性插值轮廓放大

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UNIQUENESS OF LIMIT CYCLE FOR A CLASS OF QUARTIC SYSTEM ACCOMPANYING WITH QUADRATIC SYSTEM

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Annals of Differential Equations 2008年第2期24卷 239-245页

作者： Zhan Qingyi(college of computer and information Science,Fujian Agriculture and Forestry University,Fuzhou 350002) Xie Xiangdong(Dept. of Math.,Ningde Teachers college,Ningde 352100,Fujian) Wu Chengqiang(college of Math. and computer Science,Fuzhou University,Fuzhou 350002)

In this paper,we consider a class of quartic system,which is more general and realistic than the quartic accompanying system. Consequently,we obtain sufficient conditions concerning the uniqueness of limit cycle as we... 详细信息

关键词： accompanying system limit cycle uniqueness

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A Graph-Based Text Similarity Algorithm

A Graph-Based Text Similarity Algorithm

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2012 National Conference on information Technology and computer Science

作者： Zuoguo Liu college of computer Science & information GuiZhou University GuiYang city,GuiZhou province,China Xiaorong Chen college of computer Science & information GuiZhou University GuiYang city,GuiZhou province,China

This paper is trying to research a text similarity algorithm which based on graph theory.A text is mapped into a graph which consists of terms as its nodes and term sequences as its undirected *** Maximum Common Subgraph （MCS） of two graphs is useful for analyzing their similarity and the similarity of two texts is divided into two parts:nodes similarity and edges *** part is calculated respectively and text similarity is the sum of two parts.

关键词： graph theory mapped graph maximum common subgraph

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The Measurement of Coordination Degree between Manufacturing and Logistics—Based on Gray Correlation System Model

The Measurement of Coordination Degree between Manufacturing...

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2010 Second International Seminar On Business and information Management (ISBIM 2010)

作者： Jian-liang PENG college of computer & information Engineering Zhejiang Gongshang University Hangzhou Zhejiang Province China Kuai-juan ZHANG college of computer & information Engineering Zhejiang Gongshang University Hangzhou Zhejiang Province China

Coordinated growth of manufacturing and logistics industry has become an important issue in the sustainable development of a *** article firstly builds manufacturing and logistics system in index system,and then,with the application of gray model,makes a quantitative analysis of the degree of logistics coordination between manufacturing and logistics industry during 2000-2008 in *** finds that the coordinated development of manufacturing and logistics are in the critical state between coordination and lack of *** conclusions are of practical significance.

关键词： Coordination degree Grey Relational Model manufacturing industry logistics industry

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