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28th European Simulation and Modelling Conference, ESM 2014

作者： Gerzson, Miklós Leitold, Adrien Hangos, Katalin M. Dept. of Electrical Engineering and Information System University of Pannonia P.O.B. 158 VeszprémH-8201 Hungary Department of Mathematics University of Pannonia P.O.B. 158 VeszprémH-8201 Hungary Process Control Research Group Computer and Automation Research Institute P.O.B. 63 BudapestH-1518 Hungary

ISBN: (纸本)9789077381861

A novel fault integration method is proposed in this paper for manufacturing system models given in the form of timed colored Petri nets. The faults are assumed to have a stochastic nature and are represented in the form of transitions firing in stochastic way with known fault probabilities in the system model. A novel fault effect propagation method was also developed, that can be used to compute the probabilities of the possible faulty and non-faulty intermediate and final states of the system using the probabilities of faults and the occurrence graph. The faultless and fault containing models were implemented in CPNTools both for non-timed and timed cases. A software module was also developed for the proposed probabilistic fault propagation analysis. The proposed methods and tools were demonstrated using a simple case study.

关键词： Manufacture

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Performance optimization of media distribution in overlay networks using OpenFlow

Performance optimization of media distribution in overlay ne...

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International Conference on information Networking

作者： Shimin Sun Li Han Sungchol Cho Sunyoung Han Junfeng Wang Béatrice Paillassa Dept. of Computer & Information Communication Engineering Konkuk University Seoul Korea College of Computer Science Sichuan University Chengdu P.R. China Institut National Polytechnique University of Toulouse Toulouse France

ISBN: (纸本)9781479936908

Throughout the last decade, overlay multicast is a hot issue for media distribution services. High bandwidth consumption and multi-source multicasting in widely distributed networks is a critical issue for a wide range of applications including video conferencing, multi-party games, content distribution etc. A number of research projects have explored to use multicast as an efficient and scalable mechanism to deal with group oriented communications. However, there are still some limitations, such as long latency, duplicated packet transmission at certain points and lack of network equipment functionality support. With the appearance of Software Defined Networking, represented by OpenFlow devices, network control and management becomes possible to remote administrators. With the support of OpenFlow, it is possible to do some optimizations of existing media distribution mechanisms in overlay networks. In this paper, we proposed a novel method to improve the traditional overlay multicast relay networks with available limited number of OpenFlow devices, to cut down the bandwidth expenditures and perform a good control and management of media distribution services.

关键词： Servers Media IP networks Performance evaluation Overlay networks Routing protocols Bandwidth

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ADMiner: An incremental data mining approach using a compressed FP-tree

Journal of Software

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Journal of Software 2013年第8期8卷 2095-2103页

作者： Lin, Chien-Min Hsieh, Yu-Lung Yin, Kuo-Cheng Hung, Ming-Chuan Yang, Don-Lin Dept. of Information Engineering and Computer Science Feng Chia University Taichung Taiwan Dept. of Industrial Engineering and Systems Management Feng Chia University Taichung Taiwan

In real world applications, most transaction databases are often large and constantly updated. Current data mining algorithms face the problem of processing a large number of transactions in dynamic environments. Since memory space is limited, it is critical to be able to use available storage efficiently and to process more transactions. In this paper, we propose an improved data structure of a compressed FP-tree to mine frequent itemsets with greater efficiency. Use of our method can minimize the I/O overhead, and, more importantly, it can also perform incremental mining without rescanning the original database. Our experimental results show that the method we propose not only requires less memory, but also performs incremental mining more efficiently. © 2013 ACADEMY PUBLISHER.

关键词： Data mining

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Content based image retrieval using ripplet transform and Kullback-Leibler Distance

Content based image retrieval using ripplet transform and Ku...

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International Conference on computer Communication and Informatics (ICCCI)

作者： A. Ambika J. Jennifer Ranjani K.B. Srisathya P. Deepika Dept of Computer Science and Engineering Vivekanandha College of Engineering for Women Dept. of Information Technology Vivekanandha College of Engineering for Women Tiruchengode India Logistics and service integration Division Caterpillar Logistics India Pvt. Ltd. Bangalore India

Content-based image retrieval (CBIR), also known as query by image content is one of the applications of computer vision. In CBIR, the contents derived from the image like color, shapes, and textures are analyzed rather than the metadata such as keywords, tags, and/or descriptions associated with the image. In this paper, the texture features of the image are modelled using Generalized Gaussian Distribution (GGD) and Ripplet Transform. Ripplet transform has the capability of capturing structural information along with the curves compared to the traditional discrete wavelet transform. The similarity between query image and the training database is found using Kullback-Leibler Distance between GGDs. The proposed system provides greater accuracy and flexibility in capturing texture information. Experimental results on a large image database demonstrate the efficiency and effectiveness of the proposed CBIR system in the image retrieval paradigm.

关键词： Transforms Image retrieval Feature extraction Computational modeling Shape

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A Combination with Knowledge Acquisition Petri Net for Location-Based Service

A Combination with Knowledge Acquisition Petri Net for Locat...

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IEEE International Conference on Ubi-Media Computing

作者： Martin M. Weng Jason C. Hung Jing De Weng Neil Y. Yen Chun Hong Huang Dept. of Computer Science & Information Engineering Tamkang University New Taipei City Taiwan College of Management Yang-En University Quanzhou City China Yang-En University Quanzhou Fujian CN Dept. of Information Technology Overseas Chinese University Taichung City Taiwan

Since the ubiquitous computing was proposed and developed for many years and the matured develop of location based research, personal user information and e-travel, our research provides a personal and useful tour guide mechanism and adaptive learning content when user traveling in anywhere they interesting. This research hopes user not only have fun during tour but also provides several knowledge they may interests about the tour places. This research extends former experiences on the development of location based research, and integrate the Petri Net methods to produce the task based procedure during the travel for user, we called it MOPN (Mission oriented Petri-Net)Besides, this research also proposes a user portfolio synchronize mechanism to provide user more adaptive and personal content based on former user background and using experience. With the results of this research, most user indicated that they have more fun with proposed system during the travel and also got lots of useful knowledge from the mission.

关键词： Educational institutions Filtering Conferences Portfolios Databases History Mobile communication

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Large negative dispersion with residual dispersion (Dr) compensation over E+S+C+L+U wavelength bands by using single mode hexagonal Photonic crystal fiber (H-PCF)

Large negative dispersion with residual dispersion (Dr) comp...

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International Conference on Electronic Design (ICED)

作者： M. H. Jaman Md. Sharafat Ali N. Ahmed S. A. Aljunid Matiur Rahman R. B Ahmad Dept. of Electrical & Electronic Engineering Rajshahi University of Engineering & Technology Rajshahi Bangladesh School of computer and communication engineering University Malaysia Perlis Pauh Putra Campus Arau Perlis Malaysia College of Computer Science and Information System Najran University Kingdom of Saudi Arabia

In transmission media the Photonic crystal fibers (PCFs) are highly suitable for wavelength-division-multiplexing (WDM) systems. This paper exhibit a Hexagonal Photonic Crystal Fiber (H-PCF) that mention simultaneously high birefringence, large nonlinearity and high negative dispersion. The proposed H-PCFs shows a large negative dispersion coefficient of about -188 to -435 ps/(***) over E and U-bands along with relative dispersion slope (RDS) perfectly matched to that of single mode fiber of about 0.0036 nm -1 . Besides according to simulation, the birefringence of the desired designed is 1.27×10 -2 with the large nonlinear coefficient is 51.54W -1 Km -1 at the operating wavelength of 1550 nm.

关键词： Optical fiber dispersion Optical fiber sensors Photonic crystal fibers Optical fiber communication Optical fiber polarization

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A method for identifying distribution pattern of cone cells in retina image

A method for identifying distribution pattern of cone cells ...

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Proceedings of the Biannual World Automation Congress

作者： Ken'ichi Morooka Yuanting Ji Oscar Martinez Mozos Tokuo Tsuji Ryo Kurazume Peter K. Ahnelt Graduate School of Information Science and Electrical Engineering Kyushu University Fukuoka Japan School of Computer Science University of Lincoln Lincoln United Kingdom Dept. Neurophysiology and Neuropharmacology Medical University of Vienna Vienna Austria

This paper proposes a method to identify the spatial distribution patterns of cone cells related with blood vessel in a given retina image. We define three types of the distribution patterns between cones and vessels. Positive correlation distribution (PCD) and negative correlation distribution (NCD) indicate that the cones tend to be close to or far from the vessels. While the cone cells do not have significant correlation with vessels, the cone distribution is regarded as the random distribution (RD). In our method, RD is modeled by many virtual retina images, each of which is generated by the vessels extracted from the original retina image and the virtual cells are selected randomly from the image. Using the virtual images, we estimate the distribution range of RD. When the distribution of the original cells is above the upper limit or below the lower limit of the RD distribution, the cell distribution is NCD or PCD. Otherwise, the cell distribution is regarded as RD.

关键词： Correlation Biology Image resolution

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Single image dept. estimation based on dark channel prior

Single image depth estimation based on dark channel prior

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9th International Conference on information, Communications and Signal Processing, ICICS 2013

作者： Chuang, Cheng-Hung Shen, Wei-Chih Lian, Zhen-You Lin, Guo-Shiang Dept. of Computer Science and Information Engineering Asia University Taichung Taiwan Dept. of Computer Science and Information Engineering Da-Yeh University Changhua Taiwan

ISBN: (纸本)9781479904341

This paper presents a dept. estimation method based on dark channel prior to construct a dept. map from a single 2D image of an outdoor scene for 3D display applications. The method computes a dept. map using a series of image processing strategies such as dark channel computation, edge detection, the edge-based iterative thresholding technique, the region split-and-merge algorithm, the foreground and background classification, and the dept. estimation by integration of dark channel and elevation information. Experimental results and comparisons show that the proposed method provides good dept. estimation in boundaries and regions of sky and buildings. © 2013 IEEE.

关键词： Three dimensional displays

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An improved optimization method based on the intelligent water drops algorithm for the vehicle routing problem

An improved optimization method based on the intelligent wat...

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IEEE Workshop on Computational Intelligence in Production and Logistics Systems (CIPLS)

作者： Zahra Booyavi Ehsan Teymourian G.M. Komaki S. Sheikh Department of Industrial Engineering University of Science and Culture Tehran Iran Electrical Engineering and Computer Science Department Case Western Reserve University Cleveland USA Industrial Engineering Department Mazandaran University of Science and Technology Babol Iran Information Systems and Decision Science Dept. University of Baltimore Baltimore USA

We introduce an improved intelligent water drops (IIWD) algorithm as a new swarm-based nature inspired algorithm to solve capacitated vehicle routing problem. IIWD algorithm introduces new adjustments and features that help to optimize the VRP problem with higher efficiency. We reinforce this algorithm to have satisfactory consequences in controlling the balance between diversification and intensification of the search process. We solve 14 well-known benchmark instances in the literature to compare the solutions with the best reported solutions in the literature. Experimental results demonstrate that the suggested technique can well and effectively cope with such problems.

关键词： Soil Vehicles Heuristic algorithms Algorithm design and analysis Vehicle routing Optimization Approximation algorithms

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Real-Time Finger Tracking for Virtual Instruments

Real-Time Finger Tracking for Virtual Instruments

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IEEE International Conference on Ubi-Media Computing

作者： Mu Hsen Hsu Timothy K. Shih Jen Shiun Chiang Dept. of Computer Science and Information Engineering National Central University Taiwan R.O.C Taoyuan Department of Electrical Engineering Tamkang University New Taipei Taiwan R.O.C

Human computer Interaction is becoming a major component in computer science related fields allowing humans to communicate with machines in very simple ways exploring new dimensions of research. Kinect, the 3D sensing device introduced by Microsoft which allows developers to use dept. data for research. Recently, there are several mature libraries such as NITE and Kinect SDK which provide functions of Human skeleton tracking. Therefore, users may find that these applications only work with big joints of human body. When it comes to the tracking of fingers, devices such as Leap Motion will be mentioned because it provides APIs and games, which users can communicate with the computer by their fingers. Although Leap Motion Provides functions of finger tracking, the operating distance is short and users need to sit in a fixed position. Here, in this paper, authors' experimental efforts on detailed hand tracking including fingers based on Microsoft Kinect. Analyzing the dept. information captured by Kinect in real time, users can apply the result in different scopes such as device controller and Virtual Instruments.

关键词： Thumb Tracking Three-dimensional displays Robustness Instruments Sensors

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