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Project management stage mutations within agile methodological framework process transformations

WSEAS Transactions on information Science and Applications 2008年第5期5卷 776-785页

作者： Markopoulos, Evangelos Bilbao, Javier Bravo, Eugenio Stoilov, Todor Vos, Tanjia E.J. Talamanca, Carlo Figa Reschwamm, Katrin Department of Informatics University of Piraeus 80 Karaoli and Dimitriou Str. Piraeus Greece Applied Mathematics Dept. University of the Basque Country Alda. Urkijo s/n. Bilbao Spain Dept. Hierarchical Systems Institute of Computer and Communication Systems Bulgarian Academy of Sciences Acad. Bonchev str. Sofia Bulgaria Information Technology Institute University of Valencia Camino de Vera s/n Valencia Spain Technology Division - ICT Area Via Giacomo Peroni 386 Roma Italy The Fraunhofer Institute for Factory Operation and Automation Fraunhofer IFF ICCL Sandtorstrasse 22 Magdeburg Germany

Projects are living entities. They are born with the project idea and end with the project termination. The time in between can last for many years, in most of the cases, requiring continuous implementation and management effort. Over the time project changes on requirements change the implementation process and in turn the management process, the maintenance process and so on. In order to maintain qualitative and quantitative project results both the project implementation and management processes need to be adjusted in the overall project changes and environment. This adjustment can be made by using agile project management methodologies, defining processes based on the identification of the project goals, constraints and expatiations. Unfortunately that is not enough, and projects, especially software projects are still in implementation and management crisis. This paper presents the concept of process mutation on project management methodological frameworks as a supplementary method to the agile models and agility the concept.

关键词： Agility Process framework Process mutation Project management

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Algorithmic realization of system for short-term weather forecasting 07

Algorithmic realization of system for short-term weather for...

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International Conference on computer systems and Technologies and Workshop for PhD Students in Computing, CompSysTech '07

作者： Simeonov, Ivan Kilifarev, Hristo Ilarionov, Rajcho Department Computer Systems and Technologies Technical University of Gabrovo Bulgaria Department of Automation Information and Control Systems Technical University of Gabrovo Bulgaria

ISBN: (纸本)9789549641509

In this paper is presented algorithmic realization of system for short-term weather forecasting, which makes acquisition, processing and visualization of information, related to the parameters temperature, atmospheric pressure, humidity, wind speed and direction. The proposed algorithm is defined from the juxtaposition of the collected statistical data with the currently measured data, on the chosen methods for weather forecasting and the determined correlation between the processed meteorological quantities. The choice of the methods for weather prediction is made according the needed input data and the resources for their realization. © 2007 ACM.

关键词： Weather forecasting

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The model-free learning enhanced motion control of DC motor

The model-free learning enhanced motion control of DC motor

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International Conference on Electrical Machines and systems, ICEMS 2007

作者： Rongmin, Cao Zhongsheng, Hou Wei, Zhang Department of Computer and Automation Beijing Institute of Machinery Industry China Advanced Control Systems Laboratory School of Electronics and Information Engineering Beijing Jiaotong University China

ISBN: (纸本)8986510081

This paper presents an approach towards learning enhanced motion control of DC motor, suitable for applications involving repeated iterations of motion trajectories. The overall structure of the control consists of a feedback and a feed-forward components. The model-free learning adaptive feedback control (MFLAC) provides for the main system stabilization and an iterative learning control (ILC) algorithm is proposed to serve as a feedforward compensation to nonlinear and unknown dynamics and disturbances, thereby enhancing the improvement achievable with PID or MFLAC alone. It serves as the basis for simulation study of the proposed control scheme. A comparison of the performance achieved with traditional PID and MFLAC is also provided to highlight the advantages of the additional intelligent feedforward mode.

关键词： DC motors

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SIP security problems in NGM Services

SIP security problems in NGM Services

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International Conference on Next Generation Mobile Applications, Services and Technologies (NGMAST)

作者： Ferenc Leitold Anna Medve Levente Kovacs Department of Information Systems University of Pannonia Hungary Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Hungary

A variety of wireless interfaces are available to access Internet content in a heterogeneous network composed by technologies with limited QoS abilities. Performance increasing solutions become economic in specific parts of the network architecture, as the network sizes and the clients' numbers increase. SIP is used to locate the called party to check that the capabilities of the calling and called parties are consistent and to establish and control the connection. In this paper, we propose an addition to the SIP header/message compression methodology to improve the network QoS by implementations of SIP protocol quality options. We also deal with related SIP security issues regarding practicality and realization possibilities. This paper would like to highlight that security vulnerabilities, open problems may exist using the SIP protocol in usual cases of the practical usage.

关键词： Quality of service Next generation networking information systems Access protocols Wireless networks computer security information security automation IP networks computer architecture

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A Far-Range Off-line Camera Calibration Method for Stereo Lane Detection systems

A Far-Range Off-line Camera Calibration Method for Stereo La...

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IEEE Instrumentation and Measurement Technology Conference

作者： Andras Bodis-Szomoru Tamas Daboczi Zoltan Fazekas Department of Measurement and Information Systems Budapest University슠of슠Technology슠and슠Economics Hungary Systems and Control Laboratory Computer and Automation Research Institute Hungary

A far-range camera calibration method for vision sensors used in automatic lane detection systems is investigated. Autonomous vehicle guidance based on stereo image acquisition requires the knowledge of the camera parameters, such as camera position, orientation, lens distortion, focal length etc. with high precision. Calibration is performed by placing markers in known positions in front of the vehicle holding the camera(s) and by detecting the location of their images in the acquired snapshots. The parameters are then estimated by minimizing the geometric error in the image. Most of the methods discovered in the literature do not consider errors in the measurement of marker locations. However, a precise marker arrangement for far-range calibration might be expensive to set up. This paper shows that imprecision in the 3D location of the markers can not be tolerated in some practical situations and in such cases, a different optimization is proposed in the calibration of the extrinsic camera parameters (camera position and orientation). A position estimation method is also shown to extract marker positions from far-range laser distance meter measurements. The estimated marker positions are corrected by considering aiming errors, as well. Parameter errors are also estimated. It will be shown that our new calibration and optimization method is expected to result a good accuracy compared to commercial methods.

关键词： Cameras Calibration Remotely operated vehicles Sensor systems Mobile robots Navigation Lenses Vehicle detection Parameter estimation Position measurement

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Human Identification using Gait and Face

Human Identification using Gait and Face

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Conference on computer Vision and Pattern Recognition (CVPR)

作者： Rama Chellappa Amit K. Roy-Chowdhury Amit Kale Department of Electrical and Computer Engineering and Center for Automation Research University of Maryland College Park College Park MD USA Department of Electrical Engineering University of California Riverside Riverside CA USA Siemens Information Systems Limited Bangalore India

In general the visual-hull approach for performing integrated face and gait recognition requires at least two cameras. In this paper we present experimental results for fusion of face and gait for the single camera case. We considered the NIST database which contains outdoor face and gait data for 30 subjects. In the NIST database, subjects walk along an inverted Sigma pattern. In (A. Kale, et al., 2003), we presented a view-invariant gait recognition algorithm for the single camera case along with some experimental evaluations. In this chapter we present the results of our view-invariant gait recognition algorithm in (A. Kale, et al., 2003) on the NIST database. The algorithm is based on the planar approximation of the person which is valid when the person walks far away from the camera. In (S. Zhou et al., 2003), an algorithm for probabilistic recognition of human faces from video was proposed and the results were demonstrated on the NIST database. Details of these methods can be found in the respective papers. We give an outline of the fusion strategy here.

关键词： Humans Face recognition Cameras Biological system modeling NIST Educational institutions Rendering (computer graphics) Image recognition Visual databases automation

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A novel modular climbing caterpillar using low-frequency vibrating passive suckers

A novel modular climbing caterpillar using low-frequency vib...

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IEEE/ASME (AIM) International Conference on Advanced Intelligent Mechatronics

作者： H. X. Zhang J. Gonzalez-Gomez S.Y. Chen W. Wang R. Liu D. Li J. W. Zhang Institute of Technical Aspects of Multimodal Systems Department of Computer Science University of Hamburg Hamburg Germany School of Engineering Universidad Autonoma de Madrid Spain Department of Informatics University of Hamburg Germany College of Information Engineering Zhejiang University of Technology Hangzhou China Robotics Institute School of Mechanical Engineering and Automation Beijing Aeronautics and Astronautics University Beijing China

This paper presents a novel modular climbing caterpillar named ZC-I. After a related survey on the topic, a systematical summarizing on basic functions provided by this system is given. ZC-I features fast-building mechanical structure and low-frequency vibrating passive attachment principle. Active joints actuated by RC servos endow the connecting modules with the ability of changing shapes in two dimensions. After that the discussion focuses on the various locomotion capabilities. Linear movement, turning movement, lateral movement, rotating and rolling movement are achieved based on an inspired control model to produce rhythmic motion. In the end a conclusion and future work are given.

关键词： Climbing robots Prototypes Kinematics Servomechanisms Joining processes Shape Adhesives Electromagnetic forces Electromagnets Mobile robots

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Runtime reconfiguration of a modular mobile robot with serial and parallel mechanisms

Runtime reconfiguration of a modular mobile robot with seria...

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2007 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： H. X. Zhang S.Y. Chen W. Wang J. W. Zhang G. H. Zong Institute of Technical Aspects of Multimodal Systems Department of Computer Science University of Hamburg Hamburg Germany Dept of Informatics University of Hamburg Germany College of Information Engineering Zhejiang University of Technology Hangzhou China Robotic Institute School of Mechanical Engineering and Automation Beijing Aeronautics and Astronautics University Beijing China Cognitive Technology Laboratory Shenzhen Institute of Advanced Technology Shenzhen China

This paper presents a novel field robot JL-I based on a reconfigurable concept for urban search and rescue applications. The robot consists of three identical modules; each module is an entire robotic system that can perform distributed activities. It features three-degrees-of-freedom (DOF) active joints actuated by serial and parallel mechanisms for changing shape and flexible docking mechanism. The docking mechanism enables adjacent modules to connect or disconnect flexibly and automatically. DOF analysis, working space analysis and the kinematics of the 3D active joint between connected modules are studied thoroughly. In the end a series of successful tests confirm the principles and the robot's capabilities.

关键词： Runtime Mobile robots Orbital robotics Robotics and automation Space technology Intelligent robots Kinematics Testing Prototypes Accidents

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Two-dimensional encoding schema and genetic operators

Two-dimensional encoding schema and genetic operators

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9th Joint Conference on information Sciences, JCIS 2006

作者： Tsai, Ming-Wen Hong, Tzung-Pei Liu, Tung-Kuan Department of Management Information Systems National Chengchi University Department of Computer Science and Information Engineering National University of Kaohsiung Department of Mechanical and Automation Engineering National Kaohsiung First University of Science and Technology

ISBN: (纸本)9078677015

In this paper, we propose a new genetic algorithm based on the two-dimensional encoding method. Appropriate two-dimensional crossover and mutation operations are designed based on the two-dimensional representation to generate the next generations. A two-dimensional repairing mechanism is also proposed to adjust infeasible chromosomes into feasible ones. Experiments are finally made to show the effectiveness of the proposed genetic algorithm.

关键词： Gene encoding

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An improved super-resolution with manifold learning and histogram matching

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International Conference on Biometrics, ICB 2006

作者： Chan, Tak Ming Zhang, Junping Shanghai Key Laboratory of Intelligent Information Processing Department of Computer Science and Engineering Fudan University 200433 China Key Laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences Beijing 100080 China

ISBN: (纸本)3540311114

Biometric Person Authentication such as face, fingerprint, palmprint and signature depends on the quality of image processing. When it needs to be done under a low-resolution image, the accuracy will be impaired. So how to recover the lost information from down-sampled images is important for both authentication and preprocessing. Based on Super-Resolution through Neighbor Embedding algorithm and histogram matching, we propose an improved super-resolution approach to choose more reasonable training images. First, the training image are selected by histogram matching. Second, neighbor embedding algorithm is employed to recover the high-resolution image. Experiments in several images show that our improved super-resolution approach is promising for potential applications such as low-resolution mobile phone or CCTV (Closed Circuit Television) image person authentication. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Pattern matching

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