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2009 International Conference on Computational Intelligence and Software engineering, CiSE 2009

作者： Yang, Feng Liu, Lei College of Computer Science and Technology Jilin University Changchun China College of Information JiLin Teacher's Institute of Engineering and Technology Changchun China

ISBN: (纸本)9781424445073

Ontology matching is the key process of semantic interaction and knowledge sharing. It is the basement of the other semantic web application, such as, semantic web-based service, ontology alignment. The purpose of ontology matching is to reuse the ontologies and integrate them in different fields, so as to implement the bigger pool of information and knowledge for the new communication and application. So far, however, the achievements of (semi-)automatic ontology matching are very limited. Addressing this issue, the work presented in this paper puts forward an ontology matching approach, SGOM. It combines several strategies to take the similarity iterative computation on Change Weights Semantic Graph and utilizes the semantic message of ontology structure to match. For making full use of the message of ontology, our implementation and experimental results are given to demonstrate the effectiveness of the matching approach. ©2009 IEEE.

关键词： Ontology

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A DV-Hop positioning algorithm for wireless sensor network based on detection probability

A DV-Hop positioning algorithm for wireless sensor network b...

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NCM 2009 - 5th International Joint Conference on Int. Conf. on Networked Computing, Int. Conf. on Advanced Information Management and Service, and Int. Conf. on Digital Content, Multimedia Technology and its Applications

作者： Liu, Ying Qian, Zhi-Hong Liu, Dan Zhong, Hui College of Communication Engineering Jilin University Changchun China College of Electric and Information Changchun Institute of Technology Changchun China College of Computer Science and Technology Jilin University Changchun China

ISBN: (纸本)9780769537696

The localization technology is very important in wireless sensor network. Many localization algorithms have been proposed in recent year, in which DV-Hop is the prevail localization algorithm. But the DV-Hop algorithm is not very accurate. In this paper, we propose an algorithm to improve the positioning accuracy. The proposed algorithm mainly bases on the radio range of anchor nodes to determine the node location. We use the detection probability method analysis of location error. This method need no additional hardware support and can be implemented simple. The simulations results demonstrate that the proposed algorithm accuracy is better than the DV-Hop. © 2009 IEEE.

关键词： Probability

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Study on Price-Driven Load Balance in Wireless Sensor Network

Study on Price-Driven Load Balance in Wireless Sensor Networ...

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WASE International Conference on Information engineering (ICIE 2009)

作者： Zhong Hui Qian Zhi-hong Sun Da-yang Zhang Ding-guo Jilin University Changchun Jilin CN School of Communication Engineering Jilin University China College of Computer Science and Technology Jilin University China Institute of Robotics School of Mechanical Engineering Shanghai Jiaotong University Shanghai China

ISBN: (纸本)9780769536798

In this paper, a kind of price-driven load balancing assignment mechanism in wireless sensor network is proposed. A logic price function is set for each node, which serves as a reference for the assignment of data traffic when the node is selecting a router. The price-driven situation is analyzed, and the selection criteria of logic price function are given. When the data is forwarded, the node can affect the selection of traffic assigning nodes via regulating the price function according to the data size. Theoretical analysis and simulation results show that the assignment mechanism proposed can effectively control the load balance between the nodes. Moreover, the price strategy of nodes can be changed dynamically, and the traffic assignment of entire network can be affected using this mechanism.

关键词： Price-Driven traffic assignment load balance

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Analysis of urban thermal characteristics and associated land cover with landsat TM/ETM+ data in shenyang, China

Analysis of urban thermal characteristics and associated lan...

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2nd International Conference on Earth Observation for Global Changes

作者： Lv, Dongmei Song, Kaishan Zeng, Lihong Jin, Cui Liu, Dianwei Wang, Zongming Computer Science and Engineering College Jilin Architectural Civil Engineering Institute Hongqi Street 1129 Changchun 130021 Jilin Province China Northeast Institute of Geography and Agricultural Ecology CAS Weishan Road 3195# Changchun 130012 Jilin Province China

ISBN: (纸本)9780819477743

China has witnessed fast urban growth in recent decades. In this study, remote sensing data from both Landsat-5 TM and Landsat-7 ETM+ were utilized to assess the spatial-temporal characteristics of the urban area in Shenyang in northeast China. To quantitatively determine urban land use extents and development densities, land use/cover were mapped for 8 periods from 1986 to 2007 around the urban and suburban area in Shenyang. The urban-rural boundaries and urban development densities were defined by selecting certain imperviousness threshold values and Landsat thermal bands were used to investigate the thermal patterns of urban surface. Analysis results suggest that urban surface thermal characteristics and patterns can be identified qualitatively based on the urban land use and development density data. Results show that the urban area of Shenyang has an obvious daytime heating effect (heat-source). These thermal effects are strongly correlated with urban development densities i.e. higher percentage imperviousness is usually associated with higher surface temperature. Using vegetation canopy coverage information, the spatial and temporal distributions of urban impervious surface and associated thermal characteristics were demonstrated to be very useful source in quantifying urban land use, development intensity, and urban thermal patterns. © 2009 SPIE.

关键词： Urban growth

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RETRACTED ARTICLE: Research on education of graduates for computer specialty in financial and economical colleges

RETRACTED ARTICLE: Research on education of graduates for co...

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2009 International Conference on computer Technology and Development, ICCTD 2009

作者： Wang, Limin He, Yongmei Han, Xuming Zhang, Shuying Department of Information Changchun Taxation College Changchun 130117 China Institute of Information and Spreading Engineering Changchun University of Technology Changchun 130012 China College of Computer Science and Technology Jilin University Changchun 130012 China College of Computer Science and Technology Beihua University Jilin 132021 China

ISBN: (纸本)9780769538921

Firstly, the author analyzes deeply the education characteristics of graduates for computer Specialty at home and abroad. Then according to the education characteristics and development model of graduates for computer specialty in financial and economical colleges, a new training project of computer graduates is established in this paper, which is suitable for the economy development demands in China, accords with education committee rules of ministry of education and adapts to the development direction of financial and economical colleges. Finally, a more effective and perfect measure of education and development for computer graduates in financial and economical colleges is summarized, so that computer specialty in financial and economical colleges is different from the computer specialty in comprehensive universities. It can lay a good foundation for cultivating urgent need and complex computer professionals in international community. © 2009 IEEE.

关键词： Finance

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Properties of polyamorphous Ce75Al25 metallic glasses

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Physical Review B 2010年第5期82卷 054111-054111页

作者： Q. S. Zeng (曾桥石) V. V. Struzhkin Y. Z Fang C. X. Gao H. B. Luo X. D. Wang C. Lathe Wendy L. Mao F. M. Wu H.-K. Mao J. Z. Jiang International Center for New-Structured Materials (ICNSM) Zhejiang University Hangzhou 310027 China Laboratory of New-Structured Materials Department of Materials Science and Engineering Zhejiang University Hangzhou 310027 China HPSynC Geophysical Laboratory Carnegie Institution of Washington Argonne Illinois 60439 USA Geophysical Laboratory Carnegie Institution of Washington Washington DC 20015 USA College of Mathematics Physics and Information Engineering Zhejiang Normal University Jinhua 321004 China School of Material Science and Engineering Xi’an University of Architecture and Technology Xi’an 710055 China State Key Lab for Superhard Materials Jilin University Changchun 130012 China HASYLAB am DESY Notkestrasse 85 D-22603 Hamburg Germany Geological & Environmental Sciences Stanford University Stanford California 94305 USA Photon Science SLAC National Accelerator Laboratory Menlo Park California 94025 USA Stanford Institute for Materials and Energy Science SLAC National Accelerator Laboratory Menlo Park California 94025 USA

The thermal stability and electronic transport properties of polyamorphous Ce75Al25 metallic glass (MG) have been investigated using in situ high-pressure, high-temperature, energy-dispersive synchrotron x-ray diffraction and in situ high-pressure and low-temperature, four-probe resistance measurements. The results are compared with the properties of La75Al25 MG. The pressure dependence of the crystallization temperature and resistance of the Ce75Al25 MG exhibited turning points at the polyamorphic transition pressure, 1.5 GPa, and they clearly presented different behaviors below and above 1.5 GPa. In contrast, no turning points were observed in the La75Al25 MG (La has no 4f electron). Additionally, the pressure-tuned temperature coefficient of resistance of the Ce75Al25 MG was observed. These results revealed switchable properties in the polyamorphous Ce75Al25 MG that are linked with 4f electron delocalization.

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Extracting the coronary artery in angiographic image based on à trous wavelet of rotary Gaussian with adaptive space coefficient

Extracting the coronary artery in angiographic image based o...

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2009 International Conference on Computational Intelligence and Security, CIS 2009

作者： Wang, Qingzhu Liu, Miao Wang, Ke Chen, Bo An, Donghong Ying, Ying College of Communication Engineering Jilin University Changchun China Department of Computer Science Daqing Petroleum Institute Jilin University Changchun China Department of Pharmacy Changchun Medical College Changchun China China-Japan Union Hospital Jilin University Changchun China College of Information and Communication Engineering Beijing University of Post and Telecommunication China

ISBN: (纸本)9780769539317

According to the matching differences cased by cardiac non-rigid motion between angiographic images before and after injected in subtract angiography which is most widely used in diagnosis, a new algorithm based on à trous wavelet of rotary Gaussian with adaptive space coefficient σ and segmentation based on transition region is put forward to in this paper. The angiographic image is pretreated by an adaptive and multi-hierarchy method to obtain images of different levels, and all sub-images are obtained by extracting the coronary artery from image of every level, all sub-images are fused to obtain the final image in accordance by certain rules. Simulation results based on 200 actual coronary artery angiographic images indicate that comparing with traditional algorithms, SNR is improved 4.7%-8.8%, and positioning accuracy of centerline is improved3.9%-37.5%. © 2009 IEEE.

关键词： Image enhancement

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Research on the filter technology of DC/DC converter output terminal

Research on the filter technology of DC/DC converter output ...

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2009 3rd IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, MAPE 2009

作者： Wang, Wei Yang, Xu Zhai, Hong-Yu Space Optics Research Lab. Changchun Institute of Optics Fine Mechanics and Physics Changchun Jilin Province 130033 China Department of Electrical Engineering Department of Computer Changchun University of Science and Technology Changchun Jilin Province 130022 China

ISBN: (纸本)9781424440740

In order to filter out the common-mode and differential-mode interference of DC/DC converter output power, restrain the power's ripple, reduce the transmitting interference of power, and increase the anti-interference ability and stability of power system, we analyze the internal structure of DC/DC converter, describe its working principle, and take mechanism analysis of the noise produced by it. According the result, I will bring forward the integrating nonlinear filter method as well as introduce the designation and calculation method of filter inductance. According to the experiments, the power of this system works stably and satisfies the output need of system's power. ©2009 IEEE.

关键词： DC-DC converters

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Data preprocessing in SVM-based keywords extraction from scientific documents

Data preprocessing in SVM-based keywords extraction from sci...

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2009 4th International Conference on Innovative Computing, Information and Control, ICICIC 2009

作者： Wu, Chunguo Marchese, Maurizio Wang, Yufei Krapivin, Mikalai Wang, Chaoyong Li, Xitong Liang, Yanchun College of Computer Science and Technology Jilin University Changchun 130012 China National Laboratory of Pattern Recognition Institute of Automation Chinese Academy of Sciences Beijing 100080 China Italy Department of Fundamental Sciences Jilin Teacher's Institute of Engineering and Technology Changchun 130021 China

ISBN: (纸本)9780769538730

Scientific documents are unstructured data consisting of natural language and hard for scientists to read and manage. Keywords are very helpful for scientists to search the related documents and know about their contents in a prompt way. In this paper we investigate a kind of data preprocessing technique used in SVM-based keyword extraction from scientific documents. Four definitions of regular scientific documents are proposed, and the analysis on the experimental results is performed based on the proposed definitions. The experimental results confirm the intuition that abstract is important for keywords extraction. © 2009 IEEE.

关键词： Support vector machines

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A method for combinatorial explosion avoidance of AI planner and the application on test case generation

A method for combinatorial explosion avoidance of AI planner...

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2009 International Conference on Computational Intelligence and Software engineering, CiSE 2009

作者： Li, Li Wang, Dayong Shen, Xiangheng Yang, Mingli Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun China Graduate University of Chinese Academy of Science Beijing China Computer Center Liaoning University Shenyang China JiLin Business and Technology College Information Engineering Branch Changchun China

ISBN: (纸本)9781424445073

Combinatorial explosion is a key issue that leads to failures of planning for many planners. To avoid it, we modified the planner of IPP and divided its fact file into several small parts, and the method is called goal-decompounded. We also expanded the arithmetic of IPP. The modified planner we called MF-IPP able to handle multiple fact files, which avoided the combinatorial explosion. We applied the method on the GUI test case generation. The main idea was to produce the initial test case from planner firstly, and then propose a way of solution expanding to reinforce the generation. At last, we compared the performance of the two planners, and the result showed that MF-IPP can avoid the combinatorial explosion well. ©2009 IEEE.

关键词： Graphical user interfaces

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