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检索条件"任意字段=2009 International Conference on Computer Technology and Development, ICCTD 2009"

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Agile Estimation using CAEA:A Comparative Study of Agile Projects

Agile Estimation using CAEA:A Comparative Study of Agile Pro...

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international conference on computer Engineering and Applications（ICCEA 2009）

作者： Shilpa Bhalerao Maya Ingle Devi Ahilya Vishwavidyalaya

Agile estimation approach has been a subject of active interest during the recent years due to volatile requirements of *** Agile Estimation Algorithm(CAEA) is an algorithmic approach for estimation of cost,size and duration of *** incorporates various vital factors namely;performance,complex processing,configuration,security,data transfer,operation ease,project domain and multiple *** these factors require extra efforts in development of the software thereby increasing the cost,size and duration of the *** have estimated 87 projects from various domains to study the usefulness of CAEA for agile *** projects have been classified in eight categories based upon the number of vital factors having high intensity *** has been observed that CAEA has generated the more realistic results and eliminated the need of experienced team members and historical *** has been noticed that CAEA is more useful in case of higher number of vital factors having high intensity *** is a step toward integrating engineering practices in agile methodology in a lighter way.

关键词： Agile methodology,agile estimation,Constructive Agile Estimation Algorithm(CAEA),story points,planning poker.

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Shot Type Classification in Sports Video Based on Visual Attention

Shot Type Classification in Sports Video Based on Visual Att...

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2009 international conference on Computational Intelligence and Natural Computing(CINC 2009)

作者： Congyan Lang, De Xu, Yiwei Jiang dept. of computer science Beijing Jiaotong University Beijing, China

In this paper, we present a new method for classifying shot type in sports video based on visual attention. The problem is important for applications such as video structure analysis and content understanding. In particular, two-stage off-line learning processes perform knowledge extraction of semantic concepts and automatic shot classification, respectively. In the first stage, the extracted prominent regions are used as a good pattern in semantic concept level. Then a number of global features are defined as efficient input of the shot type classifier in the second stage. The identification of semantic concepts and classification of shot are based on human visual system. Hence, this framework can adequately capture the uncertainty or ambiguity of scales of a shot. Experimental results show the excellent performance of the approach.

关键词： shot classification, visual attention, video analysis

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Evaluation of Enterprise Innovation Ability Based on Rough Set Theory

Evaluation of Enterprise Innovation Ability Based on Rough S...

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2009 Asia-Pacific conference on Information Processing

作者： Lei Yin School of Mechano-Electronic Engineering Xidian University Xi'an,China Xiaoxiang Liu,Weigang Jiang,Jianwen Xie Department of computer Science of Zhuhai College Jinan University Zhuhai,China

The creative ability index is quite important for *** paper proposes an evaluation method for enterprise innovation ability based on rough set ***,an index reduction which effects the enterprises based on the rough set theory is carried out,then the major indexes of enterprise development ability is ***,the standardized processing of all kinds of index values based on the membership function makes them have a unified dimension thus possessing ***,a comprehensive evaluation of enterprise creative ability via the principal component analysis is ***,we obtain the creative ability level of that enterprise compared with other ones by using its concrete statistical data to prove its effectiveness.

关键词： Creative ability Rough set theory Principal component analysis Membership function

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Research of Capacity Optimizing model on Wireless Mesh Networks

Research of Capacity Optimizing model on Wireless Mesh Netwo...

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2009 2nd IEEE international conference on computer Science and Information technology（ICCSIT 2009）

作者： Shu-qiang Huang 1.School of computer Science&Engineering,South China University of technology,Guangzhou 510640,China 2.Network and Educational technology Center of JiNan University,Guangzhou 510632,China Qi-lun Zheng School of computer Science&Engineering,South China University of technology,Guangzhou 510640,China

As a new type of wireless network architecture,because of its self-organization,and support multi-hop and heterogeneous networks,Wireless Mesh networks has played an important role in building"wireless cities"and become an research spot in academia and *** practical applications,network capacity is the most important need and high network throughput is the most important network performance *** a wireless Mesh network basic issue,network capacity associates the physical characteristics of the network,topology,routing algorithm and channel allocation scheme at all *** the question of wireless Mesh network capacity,the paper proposes a hierarchy optimization model from bottom to up and a series of optimization ways based on programming *** main content in this paper includes:(1)Optimizing link-channel scheduling strategy,studying the wireless Mesh network channel allocation algorithm,and an interference-based model and linear programming channel allocation and routing joint algorithm is proposed;(2)research of network scalability,taking into account the network coverage and performance at the same time,the paper presents a mixed integer nonlinear programming algorithm for the deployment of the AP;(3) research of gateway deploying strategy,a linear programming based heuristic algorithm gateway deployment is *** on these issues of network capacity optimization will improve the performance of networks and promote the development of wireless mesh networks;it also has certain significance in the engineering practice.

关键词： wireless mesh networks capacity optimizing channel allocation programming theory

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A Novel Application-layer Relay Strategy for Low Delay P2P SIP VoIP System

A Novel Application-layer Relay Strategy for Low Delay P2P S...

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international conference on Ubiquitous Information Technologies and Applications (ICUT)

作者： Hong Yao Hai Jin Siwei Zhou Linchen Yu Xiaofei Liao Services Computing Technology and System Laboratory Cluster and Grid Computing Laboratory School of Computer Science and Technology Huazhong University of Science and Technology Wuhan China School of Computer Science and Technology China University of Geoscience Wuhan China

development of Internet brings the great increasing communication requirement. This demand impels the developing progress of Voice over Internet Protocol (VoIP). It is difficult to supply the high quality user experience for VoIP services, which has brought great challenges to VoIP developer because of the dynamic property of Internet. We obtain the following results in lots of existing VoIP systems: (1) many relay peer selections are suboptimal; (2) the waiting time to select a relay node can be quite long; (3) there are a large number of unnecessary probes, resulting in heavy network traffic. This paper presents a way called novel application-layer relay strategy (NARS) to solve relay problem and improve scalability. We introduce the mechanism in detail, and test our mechanism in NS2 network simulation environment and get a high relay node hit ratio result, which confirms the feasibility of NARS. Also we make a comparison with the other existing models.

关键词： Relays Delay Peer to peer computing Internet telephony Web and internet services Probes Telecommunication traffic Traffic control Scalability Testing

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Control Algorithm of an Autonomous Obstacles Negotiating Inspection Robot for Power Transmission Lines

Control Algorithm of an Autonomous Obstacles Negotiating Ins...

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international conference on Information Science and Engineering (ICISE)

作者： Zheng Li Ruan Yi College of Mechanical Engineering and Automation Shanghai University Shanghai China School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology China

In biorobotics research, engineers and biologists come together to implement the researcher's vision of the mechanisms driving a biological process in steel and silicon. Bionics has made a great progress and appeared all kinds of biologic design and application for robot. This paper describes the development of a mobile robot capable of negotiation such obstacles as electric power fitting, damper, anchor clamp, and torsion tower. The mobile robot suspends on overhead ground wires of 500KV power towers. Its ultimate purpose is to automate the inspection of power transmission line equipment. Biology principle of the movement of the monkey is taken as reference prototype to design and produce the inspection robot driven by 13 motor with two arms, two wheels, two wrists, two claws and a box. The inspection robot is designed to realize the function of observation, grasp, walk, rolling, turn, rise, and decline. An embedded computer based on PC/104 bus is chosen as the core of control system. A video capture card and thermal infrared camera are installed to obtain the temperature information of the power transmission lines, and the communication system between the robot and the ground station is based on wireless LAN TCP/IP protocol. An expert system programmed with Visual C++ is developed to implement the automatic control. A novel prototype with careful considerations on mobility was designed to inspect the 500KV power transmission lines. The new control algorithm of posture plan is proposed for obstacles cleaning in the torsion tower. Results of experiments demonstrate that the robot can be applied to execute the navigation and inspection tasks.

关键词： Inspection Power transmission lines Robotics and automation Mobile robots Poles and towers Prototypes Automatic control Power engineering and energy Biological processes Steel

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Higher-level development and COTS hardware expand FPGA boundaries

Higher-level development and COTS hardware expand FPGA bound...

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international Automatic Testing conference, AUTOTESTCON

作者： Jamie Brettle Adri Kruger National Instruments Corporation Austin TX USA

FPGA development tools can be complex, especially for users outside the digital design space. As a result of this complexity, industry is calling for software tools to increase efficiency of digital designers by abstracting the low-level details of FPGA programming. Most importantly, this process must close the growing gap between hardware and software design. New tools are emerging to help scientists and engineers use FPGAs without requiring the knowledge of low level hardware description languages (HDLs) or board layout. These domain expert users can use prior knowledge in software design or graphical approaches to create complex systems that include digital signal processing (DSP), direct memory access (DMA), digital communication protocols, and more all within an FPGA. With the ability to use C programming on the host and higher level tools for FPGA development on the target, software engineers can use FPGA technologies along with processors to run algorithms on the most efficient hardware target for test applications. This paper will cover examples of these tools and detail how higher-level abstraction, coupled with COTS hardware, can bring FPGA technology to new domains and users.

关键词： Field programmable gate arrays Software tools Software design Digital signal processing computer industry Knowledge engineering Hardware design languages Layout Digital communication Access protocols

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STUDY ON PERFORMANCE EVALUATION METHOD BASED ON MEASUREMENT FOR WIRELESS SENSOR NETWORK

STUDY ON PERFORMANCE EVALUATION METHOD BASED ON MEASUREMENT ...

引用

2009 IEEE international conference on Communication technology and Applications（ICCTA2009）

作者： Yuan Lingyun~1,Wang Xingchao~2 1 College of computer Science and Information technology,Yunnan Normal University,Kunming 2 computer Center of Yunnan University,Kunming

Due to non-uniform network architectures and different kinds of performance requirements in different applications,a universal method of performance evaluation for wireless sensor network is still lacking at *** new performance evaluation criteria system for wireless sensor network are defined in this paper,such as residual energy,network lifetime and coverage *** a synthetic multi-criteria performance evaluation method based on criteria weight is put forward,with the integration of mathematical modeling and measurement *** the path as a basic performance evaluation unit,a multiple measurement criteria matrix is established to calculate a synthetic performance value of the path,in which the criteria weight can be set according to the different *** simulation results show that network performance of wireless sensor network can be achieved efficiently with our method,in which differences in applications can be *** the method can be applied to all kinds of wireless sensor networks.

关键词： Wireless Sensor Network Performance Evaluation Criteria Performance Evaluation Model Criteria Weight Multiple Criteria Matrix

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Website Planning and Design of Network Marketing in Small and Medium Garment Enterprises in China

Website Planning and Design of Network Marketing in Small an...

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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： Tianpeng Liu computer&Information technology Department Tianjin University of Commerce Boustead College Tianjin Municipality 300384,China

Since the reform and opening up in 1978,remarkable progress has been made in garment industries in China,and their core competitiveness has been transferred initial technical winning to operational management winning,and then to the current marketing *** rapid development and deep popularity of Internet technology and as one of marketing models,network marketing has gradually become the focus of garment *** positive trial of operation in recent years,great achievements of network marketing have been accomplished in garment *** research,the author discovers that network marketing in garment industries is mendacious prosperity to great extent,and there are still some aspects that are not fully up to expectations,as a result of which garment industries haven't gained due profits from network *** haven't been many academic papers which start from practices and study how small and medium garment enterprises launch network *** "Jinbai Garment Co.,Ltd",this article puts forward website planning and design program of network marketing of actual situations in Chinese small and medium garment enterprises.

关键词： Small and medium garment enterprises,network marketing,website planning and design

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Research on Three-dimensional Cartilage Thickness Measurement of Femoral Head in Magnetic Resonance Images

Research on Three-dimensional Cartilage Thickness Measuremen...

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2009 international conference on Computational Intelligence and Natural Computing(CINC 2009)

作者： Cao Yu,Zhao Jie State Key Laboratory of Robotics and System,Harbin Institute of technology Harbin,China Cheng Yuanzhi School of computer Science Harbin Institute of technology at Weihai Weihai,China

Measuring the thickness of articular cartilage in three-dimensional (3D) magnetic resonance (MR) images is an important diagnostic procedure. A 3D measuring method was proposed to determine the femoral cartilage thickness in this paper. The cartilage thickness was defined as the distance between the two sides of the edges,which are the zero-crossing points of the second directional derivatives combined with Gaussian blurring along the normal direction of the cartilage surface. The spherical constraint of the femoral shape was utilized to confirm the normal direction. The zero-crossing method was demonstrated by mathematical simulation. Experiments were conducted using a resected femoral head to validate the method. The anatomical thickness data were proved to be well correlated with the zero-crossing thickness data.

关键词： femoral cartilage zero-crossing thickness measurement three-dimensional MR images

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