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CDVE Tables of Contents: 0405060708091011121314

CDVE 2007: International Conference on Cooperative Design, Visualization, and Engineering

Fullname:Cooperative Design, Visualization, and Engineering: 4th International Conference
Editors:Yuhua Luo
Location:Shanghai, China
Dates:2007-Sep-16 to 2007-Sep-20
Publisher:Springer Berlin Heidelberg
Series:Lecture Notes in Computer Science 4674
Standard No:DOI: 10.1007/978-3-540-74780-2; ISBN: 978-3-540-74779-6 (print), 978-3-540-74780-2 (online); hcibib: CDVE07
Links:Online Proceedings
Integrating Advanced Collaborative Capabilities into Web-Based Word Processors BIBAFull-Text 1-8
  Haifeng Shen; Steven Xia; Chengzheng Sun
With the development of new web technologies, web-based collaborative applications, exemplified by office applications, are emerging to take advantage of web's attractive features. We propose to plug a collaborative engine into web-based office applications so that advanced collaboration capabilities can be seamlessly integrated without compromising or modifying their conventional capabilities. This engine lies on application-independent data addressing and operation models to be reusable for a wide range of diverse applications without being modified. In this paper, we present a data addressing model for web-based word processors, which complies with the model used by the engine and shall lay a good foundation for investigating data addressing models for other web-based applications.
A Peer-to-Peer Based Communication Environment for Synchronous Collaborative Product Design BIBAKFull-Text 9-20
  Lirong Wang; Jiacai Wang; Lixia Sun; Ichiro Hagiwara
Efficiency and timeliness of collaborative communication among geographically distributed design teams are vital to collaborative product design for synchronous exchange of product design information and faster product availability. This paper introduces a preliminary research work about P2P&VRML-based collaborative communication environment that attempts to support synchronous collaborative product design in the way of WYSIWIS (What You See Is What I see). A prototype with communication means of document co-sharing & editing, draft co-drawing, instant message and VRML-based visualization space is developed on the basis of JXTA platform. Collaborative model modification is performed by cooperation between document co-editing space and VRML visualization.
Keywords: Collaborative design; P2P; VRML; CSCW
VICA: A Voronoi Interface for Visualizing Collaborative Annotations BIBAKFull-Text 21-32
  Yue Wang; James Shearer; Kwan-Liu Ma
Large-scale scientific investigation often includes collaborative data exploration among geographically distributed researchers. The tools used for this exploration typically include some communicative component, and this component often forms the basis for insight and idea sharing among collaborators. Minimizing the tool interaction required to locate "interesting" communications is therefore of paramount importance. We present the design of a novel visualization interface for representing the communications among multiple collaborating authors, and detail the benefits of our approach versus traditional methods. Our visualization integrates directly with the existing data exploration interface. We present our system in the context of an international research effort conducting collaborative analysis of accelerator simulations.
Keywords: multiple location collaborative design applications; information visualization; user interaction; cooperative visualization
Innovative Visualization Tools to Monitor Scientific Cooperative Activities BIBAKFull-Text 33-41
  Benoît Otjacques; Monique Noirhomme-Fraiture; Fernand Feltz
This paper describes how information visualization techniques can be used to monitor a web-based collaborative platform and to support workplace awareness by providing a global overview of the activities. An innovative prototype is described. Its originality relies on using some enclosure-based visualization methods in the context of activities monitoring, which is rather unusual. In addition, a new layout is described for representing data trees. The use of the system is illustrated with the case of a EU-funded Network of Excellence.
Keywords: Information visualization; collaborative platforms; treemaps; ellimaps
Workflow Methodology for Collaborative Design and Manufacturing BIBAKFull-Text 42-49
  Carlos Vila; Antonio Estruch; Héctor R. Siller; José Vicente Abellán; Fernando Romero
During product development processes, collaboration has become a common practice between different departments and companies that are involved in their activities. Product Lifecycle Management (PLM) tools can facilitate collaboration among distributed teams within the context of an extended enterprise, but the efficient use of them is still hard to achieve. In this work, we propose a workflow based approach in order to implement product development collaboration, focusing the discussion on a case study of the integration of design and manufacturing activities, using workflow functionality offered by PLM software.
Keywords: Workflow Management; Collaborative Engineering; Extended Enterprise; Product Lifecycle Management
Cooperative Reinforcing Bar Arrangement and Checking by Using Augmented Reality BIBAKFull-Text 50-57
  Nobuyoshi Yabuki; Zhantao Li
In this research, a bridge product model named New IFC-BRIDGE was developed to represent entities of various types of bridges in a standardized manner. To solve problems identified in planning and design of reinforcing bar works, a cooperative reinforcing bar arrangement support system using Augmented Reality technology was developed. In this system, multiple users can move tangible markers that represent entities of reinforcing bars and that are linked to computer graphics images represented from the New IFC-BRIDGE product model data. A prototype system was developed by deploying head mounted displays with video cameras. Furthermore, to enhance the reinforcing bar checking task at construction sites, a cooperative reinforcing bar checking support system was developed by using AR technology. The test of the prototype system showed the practicality of the system, and some problems were identified for future study.
Keywords: Product Model; Reinforcing Bar; Augmented Reality; IFC; IFC-BRIDGE; Collaborative Work
A Virtual Interactive Community Platform Supporting Education for Long-Term Sick Children BIBAKFull-Text 58-69
  Pieter Jorissen; Fabian Di Fiore; Gert Vansichem; Wim Lamotte
Analysis of existing ICT-based solutions for the education of long-term ill children reveal several weaknesses with respect to social and cooperative involvement, cost of development, and mobility issues. We present a scalable and affordable solution that supports both the social needs and learning process of these children. An educational platform was created based on the concepts of 3D networked virtual environments and Virtual Interactive Communities. In this work we describe the system architecture, network setup and protocols, and how we implemented the educational support. Our solution incorporates innovative hardware, software and connectivity features, set in a user friendly user interface based on networking and 3D technologies. It helps to establish high quality involvement of the long-term sick children in a communication based scenario between the place where the child stays/has been moved and their original classroom learning setting.
Keywords: Cooperative Learning Environment; Edutainment; E-Health; E-Learning; Virtual Interactive Communities; Social Networks
Pro-active Environment for Assisted Model Composition BIBAKFull-Text 70-79
  Sascha Opletal; Emil A. Stoyanov; Dieter Roller
Automatic testing and learning methods are of great benefit in many engineering areas. They provide the possibility for training without the need of personal communication and eliminate related barriers that hold up project progress. As most technical systems include components that are related to each other and need to form a properly working system, a knowledge base which allows to retrieve the relations of a component to others regarding its properties and targeted functionality can support this task in many ways. Our system for assisted model composition forms a highly structured documentation system, based on model semantics. An important aspect of our system is the combination of user activated information retrieval and pro-active model composition assistance. The model semantics define specialized dependency annotations that can be attached to selected parts of the model, and with the help of which relevant guidelines for related processes, such as model couplings, and belonging remarks about materials, integration oddities, exceptions and other dynamically defined properties, can be brought to the designer's attention.
Keywords: Knowledge Management; Cooperative Learning; Error-Reduced CAD
A Speech-Controlled User Interface for a CAFM-Based Disaster Management System BIBAKFull-Text 80-87
  Rüdiger Schütz; Gerald Glanzer; A. P. Merkel; Thomas Wießflecker; Ulrich Walder
Due to the numerous important decisions with major consequences which have to be taken within a short period of time in case of disasters like fire, terror attacks or floods up-to-date information about the site affected as well as positions and activities of the deployed rescue teams should be available in real-time. This information can firstly be gathered from Computer Aided Facilities Management-systems (CAFM-systems), which are based on the graphical and alphanumerical base data of the building, and are used to manage large real estates and infrastructural installations in developed countries nowadays and secondly by real-time data from master control systems and security installations of the building. Thirdly data from an "inertio-tracker" based on accelerometers and gyroscopes and used for tracking rescue teams within buildings or underground constructions can be implemented to superimpose the building data with actual position information.
   The Institute for Building Informatics at Graz University of Technology in cooperation with the security industry is currently researching and developing such a CAFM-based Disaster Management System (DMS). The main challenges are locating and tracking persons, the local information management and the communication between the on-site staff and the command center. This paper gives a brief introduction and description of the whole system with a main focus of outlining the special aspects of an efficient and easy-to-use user interface.
Keywords: user interfaces for CV; CAFM; indoor positioning; interactive visualization; voice user interface; HMD
Private Data Management in Collaborative Environments BIBAKFull-Text 88-96
  Larry Korba; Ronggong Song; George Yee; Andrew S. Patrick; Scott Buffett; Yunli Wang; Liqiang Geng
Organizations are under increasing pressures to manage all of the personal data concerning their customers and employees in a responsible manner. With the advancement of information and communication technologies, improved collaboration, and the pressures of marketing, it is very difficult to locate personal data is, let alone manage its use. In this paper, we outline the challenges of managing personally identifiable information in a collaborative environment, and describe a software prototype we call SNAP (Social Networking Applied to Privacy). SNAP uses automated workflow discovery and analysis, in combination with various text mining techniques, to support automated enterprise management of personally identifiable information.
Keywords: Privacy; compliance; workflow; social network analysis
A Scalable Method for Efficient Grid Resource Discovery BIBAKFull-Text 97-103
  Yan Zhang; Yan Jia; Xiaobin Huang; Bin Zhou; Jian Gu
How to discover resource rapidly and exactly in distributed and heterogeneous grid environment is a key problem that affects grid computing performance. In this paper, the P2P method is used to improve scalability of resource discovery mechanism, and a decentralized resource discovery method with well scalability is presented, this method uses binary tree to manage data, each node in grid is responsible for managing a part of resource information. Experimental result shows that the method presented in this paper can resolve many problems that exist in centralized mechanism, such as poor scalability, heavy load on resource information server and single point failure.
Keywords: Grid Computing; Resource Discovery; P2P; Binary Tree
Modeling and Analysis for Grid Service Cooperative Scheduling Based on Petri Nets BIBAKFull-Text 104-112
  Yaojun Han; Changjun Jiang; Xuemei Luo
As the complexity of application system for enterprises, an important challenge is to dynamically schedule and integrate the heterogeneous and distributed services or activities to work cooperatively and efficiently. An effective technology to resolve the problem is grid service. A grid service built on both grid computing and web services technologies is an extended Web service. An application system for enterprises is a grid service composition that consists of a collection of grid services related by data and control flow. Therefore, there is a need for modeling and analyzing techniques and tools for reliable and effective grid service composition. The Petri net based method is an idea approach. In this paper, we use a colored dynamic timed Petri net (CDTPN) to model the grid service composition. The definition of CDTPN for grid service and an algorithm to construct a composite service are proposed. We give a definition of reachable service graph and an algorithm for constructing the reachable service graph of CDTPN. Finally, we discuss the correctness and effectiveness of the grid service composition by analyzing the reachable service graph.
Keywords: grid service; composition; dynamic timed Petri net; performance analysis
Capturing Designers' Knowledge Demands in Collaborative Team BIBAKFull-Text 113-121
  Zhen Lu; Jiang Zuhua; Liu Chao; Liang Jun
Collaborative team members usually come from diverse disciplines; their demands for knowledge are also different from each other. This paper is mainly concerned with how to capturing designers' knowledge demands in collaborative team. With the view from workflow, designers' knowledge demand is modeled from three aspects, members, roles, and tasks' requirements for knowledge. Based on the model of knowledge demand, some intelligent mining methods are proposed so that designers' knowledge demand could be derived automatically. With the knowledge demand model, a knowledge supply system could be developed to realize: knowledge within an appropriate domain could be delivered to the proper user among the collaborative team.
Keywords: Knowledge Management; Knowledge demand; Collaborative design; Workflow
"Integrare", a Collaborative Environment for Behavior-Oriented Design BIBAKFull-Text 122-131
  Lian Wen; Robert Colvin; Kai Lin; John Seagrott; Nisansala Yatapanage; R. Geoff Dromey
In this paper, we introduce a new cooperative design and visualization environment, called "Integrare", which supports designers and developers in building dependable, component-based systems using a new behavior-oriented design method. This method has advantages in terms of its abilities to manage complexity, find defects and make checks of dependability. The environment integrates and unifies several tools that support multiple phases of the design process, allowing them to interact and exchange information, as well as providing efficient editing capabilities. It can help formalize individual natural language functional requirements as Behavior Trees. These trees can be composed to create an integrated tree-like view of all the formalized requirements. The environment manages complexity by allowing multiple users to work independently on requirements translation and tree editing in a collaborative mode. Once a design is constructed from the requirements, it can be visually simulated with respect to an underlying operational semantics, and formally verified by way of a model checker.
Keywords: behavior-oriented design; behavior tree; software environment
Differential Conversion: DWG -- SVG Case Study BIBAKFull-Text 132-139
  Martin Ota; Ivan Jelínek
This paper is focused on differential conversion, which is a new approach to data transformation between different software systems. The strategy of differential conversion, which is built on a log of changes and identifier mapping, was introduced in CDVE 2006 in a purely theoretical paper entitled Data Exchange in CAD during Iterative Work with Heterogeneous Systems. A specific case study of differential conversion in use is elaborated in this text. It is about an intelligent bi-directional transformation between DWG and SVG. DWG is a proprietary CAD-format of the AutoCAD system, whereas SVG is an open, generic graphics format, based on XML. The implemented transformation allows usage of a model created in a CAD-system within a cooperative design intended for non-CAD users. It is useful not only for reading, but even for writing into the model and modifying it. Any changes made are returned back to the original model. The following case exemplifies the previously discussed strategy. For example, a project submitter, or another party in the review process, can use a normal, generic SVG editor for writing comments and proposals into the model. A solver can transform them back into the CAD-model, without other entities in the model being damaged. This case study describes differential export and import tools and takes note of the particular solutions of the log of changes and identifier mapping problems. It also describes the relationship to the original differential conversion proposal, discusses the particular implementation, and again generalizes into some design pattern for differential conversion implementation projects in the conclusion.
Keywords: CAD; cooperative design; cooperative engineering; data exchange; differential conversion; SVG
A Study of Version Control for Collaborative CAD BIBAKFull-Text 140-148
  Zhiyong Chang; Jie Zhao; Rong Mo
Version control is the prerequisite of collaborative product development environment, which, in its turn, has attracted increasing attention of CAD/CAM engineers. We aim to present our research results on a strategy of supporting evolution of versions in a collaborative environment. The strategy we provide is consists of a functional model which make application developing more easier, a deployment model in which a Version Management Unit is the deploying cell and a communication agent is included to exchange version information, a storage model which support that version information is saved in space of personal, group or global respectively. The topics discussed also in this paper are definition of version status, the transform of version status, the storage location of version and corresponding version operations.
Keywords: collaboration; version control; model
Semantic Web Services Discovery System with QoS for Enhanced Web Services Quality BIBAKFull-Text 149-156
  Okkyung Choi; Heejai Choi; Zoonky Lee; Sangyong Han
Semantic Web Services are the key technology providing services for the users' convenience in the semantic web environment. Many companies in various fields are researching and developing languages for constructing Semantic Web Services such as DAML-S, WSDL, X-LANG and BPEL4WS. DAML-S is a method that accesses the existing Web Service method from a semantic web environment. However, the current Semantic Web Services Discovery System does not provide sufficient processing of quality factors (performance, accessibility, availability, reliability and transaction) nor reliable and accurate service results desired by the user through a UDDI search method. The present study analyzes the disadvantages of the current web services and suggests a Semantic Web Services Discovery System based on QoS applying semantic web technologies as a solution to the problems. The suggested system provides a UDDI and DAML-S based discovery engine to allow efficient web service discovery and composition.
Keywords: Semantic Web Services; QoS (Quality of Services); Information Retrieval; DAML-S (DAML+OIL Services); UDDI (Universal Description; Discovery; Integration)
Intelligent Library and Tutoring System for Brita in the PuBs Project BIBAKFull-Text 157-166
  Arturas Kaklauskas; Edmundas Kazimieras Zavadskas; Edmundas Babenskas; Marko Seniut; Andrejus Vlasenko; Vytautas Plakys
As digital libraries become more popular, information and knowledge overload has become a pressing yet required literature searching problem. Problems with searching in digital libraries will become more complex as the amount of information/knowledge increases. Traditional digital libraries often index words and documents while learners think in terms of topics and subjects. As a result, learners cannot determine how well a particular topic and/or subject is covered, or what types of search methods will provide the required information and knowledge without problems. In order to increase the efficiency and quality of the Brita in PuBs project's activities, an Intelligent Library and Tutoring System for the Brita in PuBs project (ILTS-BP) was developed. ILTS-BP has the ability to personalize, maximize reuse, index, analyse and integrate valuable information and knowledge from a wide selection of existing sources. Also, the authors have integrated ILTS-BP with a Voice Stress Analyser Subsystem. ILTS-BP is briefly analysed in this paper.
Keywords: real-time system; knowledge management; multiple user; intelligent library and tutoring system; Brita in PuBs Project; voice stress analysis
Quality Information Management System Under Collaborative Environment BIBAKFull-Text 167-174
  Junjie Yang; Rongqiao Wang; Jiang Fan; Xinmin Du; Zebang Zhang
Under collaborative environment based on PDM, the coupling of information between PDM and QIMS makes the development of QIMS complicated. During constructing cooperative circumstance, the development of QIMS can be simplified through fusing rules of quality control into the processes managed by PDM. On the other hand, since the joint model of processes managed by PDM is equivalent to the virtual product model in the collaborative environment, QIMS can also reach quality objectives of enterprise by controlling the quality view of joint model. On the basis of the quality view, an integration model between QIMS and PDM is designed to achieve the combination between quality management and process management by information integration and interface.
Keywords: collaborative environment; PDM; system integration; quality information management; distributed system
A Service-Oriented, Scalable Approach to Grid-Enabling of Manufacturing Resources BIBAKFull-Text 175-183
  Lei Wu; Xiangxu Meng; Shijun Liu
To meet the challenges of geographically and logically distributed development processes. Manufacturing resources have to be encapsulated into services. The paper presents an extensible resource encapsulation framework and provides an approach to grid-enable manufacturing resources following Web Service Resource Framework (WSRF) specification which can make them offer their services and functionality in grid environment. The framework includes a Resource Container Factory Service and many Resource Container Instance Services. The same kinds of resources are deployed in one resource container instance. The encapsulation framework has many advantages such as extensible, plug-and-play deployment, automatic encapsulating and manageable. The paper presents the design principle of the resource encapsulation framework. One kind of resource container-resource container for legacy binary codes is introduced as an example in this paper, which can cast legacy binary codes into web services. At last, we give a use case to validate our method and put forward the future work.
Keywords: grid; service-oriented; manufacturing resource; Web Service Resource Framework (WSRF); encapsulation
A Collaboration Environment for R&D Project BIBAKFull-Text 184-186
  August Liao; Li-Dien Fu; An-Pin Chen
The research question here is "how to effectively integrate the R&D experts and software developers to realize an effective R&D project collaboration software?" This research conducted a case study on the deployment of an integrated development methodology in a world-class semiconductor manufacture company. From the case study, the integrated methodology, Development Collaboration Diamond Model (DCDM), was designed, implemented and obtained the dramatic performance.
Keywords: Development Environment; Concurrent Engineering (CE)
A Bumpless Switching Scheme for Dynamic Reconfiguration BIBAKFull-Text 187-190
  Limin Liu; Ping Yan
The bumpless switching is a concept from cybernetics. It refers to the smooth switching condition when a new system replaces the old one in operation. We implemented the dynamic reconfiguration of SoC based on delta MPU architecture to reach a bumpless switching. The dynamic reconfiguration of SoC with bumpless switching depends on a co-design of some bumpless switching algorithm and a SoC hardware with delta core structure. Since bumpless is a desired condition in system switching, the scheme is significant for the dynamic reconfiguration of SoC.
Keywords: bumpless switching; SoC; dynamic reconfiguration
Real Estate's Market Value and a Pollution and Health Effects Analysis Decision Support System BIBAKFull-Text 191-200
  Edmundas Kazimieras Zavadskas; Arturas Kaklauskas; E. Maciunas; Povilas Vainiunas; A. Marsalka
The authors of this paper participated in the project Framework 6 Intelligent Cities and the Lincoln Institute of Land Policy Fellowship. One of the above project's goals was to develop and improve a Real Estate's Market Value, and the Pollution and Health Effects Analysis Decision Support System (RE-MVPHE-DSS). RE-MVPHE-DSS consists of a market value analysis, air and noise pollution, premises microclimate, health effects, voice stress analysis, complex determination of the weights of the criteria, cooperative decision making and multiple user subsystems. RE-MVPHE-DSS is briefly analysed in this paper.
Keywords: cooperative decision making; multiple-user; market value; air pollution; premises microclimate; health effects; voice stress analysis
Cooperative Decision-Making with Scheduler Agents BIBAKFull-Text 201-208
  Inci Sariçiçek; Nihat Yüzügüllü
In this study, an Agent-Based Collaborative Scheduling System is represented as a model of scheduling among shops. Agent-based system describes the behaviors of distributed decision maker agents in manufacturing systems. Agents in the system are Production Planning Agent and Shop-Floor Agents. Shop-Floor Agents are semi-autonomous agents so that the degree of autonomy is determined by the Production Planning Agent. The distributed system forming heterogeneous units was designed by hybrid control architecture. The study focuses on constructing an Agent-Based Collaborative Scheduling System that is capable of conducting scheduling negotiations among shop-floor agents. The designed system is capable of scheduling by considering heterogeneous objectives of the shop-floor agents within a collaborative manufacturing environment. Negotiation is co-operative not competitive. Shop-Floor Agents generates collaboratively their schedules. The schedule for the best interest of the system as a whole is selected by the Production Planning Agent.
Keywords: Agent-Based Production Systems; Collaborative Scheduling; Cooperative Decision-Making
Classification of the Investment Risk in Construction BIBAKFull-Text 209-216
  Leonas Ustinovichius; Galina Shevchenko; Dmitry Kochin; Ruta Simanaviciene
The determination of the investment project risk is an important stage in cooperative decision-making and in choosing the most profitable project with the lowest risk level in engineering and construction. Risk management is a systematic process for integrating professional judgments about relevant risk factors, their relative significance and probable adverse conditions and/or events leading to identification of auditable activities. The paper aims to present a verbal method of determining investment risk in construction. The main problem considered is the assessment of investments, which depend on the risk level. This article presents a new way to solve the problem -- the CLARA expert verbal method. Formally, the problem is stated as one of multicriteria classifications. A hierarchical approach to the considered effectiveness indicators is proposed. The proof of the method effectiveness is presented. The process of method's practical application is described.
Keywords: expert verbal method; engineering and construction; cooperative decision making
A Composite-Service Authorization Prediction Platform for Grid Environment BIBAFull-Text 217-225
  Chuanjiang Yi; Hai Jin; Sheng Di
In workflow and grid environment, the security challenges with the appearance of composite service increasingly become more severe than before especially to the traditional static access control model and dynamic authorization model. To solve these challenges, we presented a Dynamic Access Control Prediction mechanism for service workflow on the basis of Markov Chain. In fact, this prediction mechanism is only one part of the larger system, Composite-Service Authorization Prediction platform (CAP), which is totally composed of three key modules -- composite-service pre-processing, result feedback, and authorization prediction. In this paper, we present the design of its architecture as a whole.
A Document Recommendation System Based on Clustering P2P Networks BIBAKFull-Text 226-233
  Feng Guo; Shaozi Li
This paper presents a document recommendation system based on clustering peer-to-peer networks. It's an unstructured P2P system. In this system each agent-peer can learn user's interest, then it helps user share and recommend documents with the other users. Since each peer in our P2P networks is a node, in order to cluster them, we import the concept of Group. Each group is composed of peers. The types of documents, which belong to a same group, are uniform. This paper presents how these peers help users to share and to recommend documents, and how they cluster into groups. Our experiment results show the advantages of the document recommendation system.
Keywords: Recommendation System; Clustering P2P; Reputation Management
SECGrid: Science and Engineering Computing Based Collaborative Problem Solving Environment BIBAKFull-Text 234-241
  Xiaohong Chen; Bin Gong; Hui Liu; Yi Hu
With the gradually extending of problem application scale, science and engineering computing becomes more and more complicated. Designing a collaborative problem solving environment aiming at specific fields is becoming more and more important. In order to integrate various heterogeneous resources and provide a flexible problem solving environment, we proposed a novel grid approach: SECGrid (Science and Engineering Computing Grid). SECGrid provides a dynamic grid application deploy environment. A grid portal is also adopted to present grid application from diverse sources in a unified way. We proposed a new scheduling algorithm (Application Demand Aware Algorithm) to make job scheduling more feasible. Moreover, SECGrid provides a lot of useful facilities, such as grid accounting, grid monitoring, etc. In the practical application, SECGrid encapsulates lots of computing modules from science and engineering, and provides an easy way for collaborative problem solving.
Keywords: PSE; grid computing; grid accounting; grid monitoring; scheduling
Bandwidth-Aware Scheduling in Media Streaming Under Heterogeneous Bandwidth BIBAKFull-Text 242-249
  Jian Wang; Changyong Niu; Ruimin Shen
Data-driven media streaming has been deployed gradually over the Internet. In such systems, node periodically exchanges media block availability and fetches desirable blocks from neighbors. The issue on optimizing fetching blocks is called block scheduling and receives focus, especially in heterogeneous overlay. In this paper Bandwidth-Aware Scheduling (BAS) formulates such problem by incorporating bandwidth and block deadline, as well as node importance. Simulation results verify that BAS performs much better than existing ones.
Keywords: Peer-to-Peer; Media Streaming; Block Scheduling; BAS
"Virtual Real Communities" and Cooperative Visualization BIBAKFull-Text 250-256
  Hans-Jürgen Frank
In a global world we face the necessity for worldwide collaboration and long-term co-creation. We know different kinds of internet platforms and examples of successful remote team work within projects for a limited time but we do not have much experience about computer sustained communities working successfully beyond projects and generations with different cultures and conflicting interests. The challenge is to build and to maintain a very specific kind of virtual community realizing a successful mix of "real" (face-to-face) and "virtual" (remote) qualities creating a platform for successful dialogue between diverse points of view. The contribution describes key qualities for creating such communities. It is about how to build the bridge between technical potentials and human qualities for establishing cross-cultural and long-term processes beyond face-to-face work. The presented experiences are based on the creation of an open and frank dialogue culture consequently using cooperative visualization from the first step of the collaboration process.
Keywords: Community; network; networking; virtual; real; visual; cooperative visualization; intercultural; change; "Virtual Real Community"
3D Visualization Method of Large-Scale Vector Data for Operation BIBAKFull-Text 257-260
  Min Sun; Renliang Zhao; Junhong Hu; Hui Guo
In order to make fast 3D visualization and operation to be feasible for large-scale global vector data, in this paper, one method based on real-time simplification to vector data is presented. This method use a list of expression error limitation to simplify line objects in the iterative process, and the result is recorded by coding. In order to realize effective data organization, line objects are divided into different priority types according to its attributes and indexed with quadtree. In addition, proper original data with certain scales are suggested to select. At last, one demonstration is given, and the result shows that the method is efficient.
Keywords: cooperative visualization; geo-information; large-scale vector data
Rule-Based Collaborative Volume Visualization BIBAFull-Text 261-263
  Yunhai Wang; Xiaoru Yuan; Guihua Shan; Xuebin Chi
Visualizing complex volume data sets often involves collaborative work of geographically distributed domain scientists and visualization experts. Integrating inputs from participants is critical to the success of such collaborative scientific visualization tasks. In this paper, we introduce a novel rule-based collaborative volume feature visualization system for sharing and integrating multiple users' knowledge in a collaborative environment. Our system is effective at combining multiple users' efforts on locating complex features.
A Collaborative and Collective Concept Mapping Tool BIBAKFull-Text 264-271
  Ivan Blecic; Arnaldo Cecchini; Giuseppe A. Trunfio
This paper presents the general philosophy, features and few aspects related to the implementation and underlying technologies of MaGIA, an Internet-based multi-user system designed for a collective and collaborative construction of knowledge models represented as concept maps. The use of the system can cover a wide range of purposes, from a theoretical discussion and construction of formal models to a support for collective brain-storming
    . What makes MaGIA an interesting tool is the emphasis put on a collective construction of such maps. In fact, one of the distinctive features and objectives of the system is to offer an enabling tool for a multi-user, bottom-up construction, where users can intervene, freely contribute and extend concept maps and where collective and collaborative multi-user map construction can take place in asynchronous as well as in synchronous way.
Keywords: concept maps; multi-user collaborative design; Jabber
WSHLA: Web Services-Based HLA Collaborative Simulation Framework BIBAKFull-Text 272-279
  Hengye Zhu; Guangyao Li; Lulai Yuan
Collaborative simulation technology is an important factor in improving the efficiency of complex product design. Although High Level Architecture (HLA)-based simulation technology can meet the needs for simulation in product design, it's also marked by many deficiencies. In this paper, we focus on the introduction of web services into HLA simulation system and propose a Web Services-Based HLA Collaborative Simulation Framework (WSHLA). The framework uses web services to encapsulate the invocations of HLA services and then make simulation system more interoperable and reusable. Firstly, the overall structure of WSHLA and the proxy, which acts on behalf of a federate and interacts with Runtime Infrastructure (RTI), are presented. Then, the detailed design and implementation process of WSHLA are discussed. Experimental results show that, using web services, the framework can make up for the deficiencies in HLA simulation system and ensure WSHLA-based collaborative simulation goes smoothly at the expense of some time.
Keywords: web services; high level architecture; collaborative simulation framework; complex product design; run time infrastructure
Cooperative Validation in Distributed Control Systems Design BIBAKFull-Text 280-289
  Dariusz Choinski; Mieczyslaw Metzger; Witold Nocon; Grzegorz Polaków
The team of engineers designing and implementing distributed control system software must communicate within a multidisciplinary environment. One of the main problems is the interaction between hardware and software solutions. Software project presumptions may not be based only on minimum hardware requirements and on technology rules. Modern distributed control systems embrace all aspects of a complex and widespread object. Hence, every modification within any discipline requires interference into the system and validation of its new features, which in turn constraints effectiveness of designing. This paper discusses how to increase effectiveness and speed up validation, in a standardised CAD environment, by using: Multi-Agent System in order to limit the number of interactions between particular subsystems, ontology for assisting topology description and properties of system entropy for assessment of introduced solutions. The proposed system was implemented and worked out in a biotechnological pilot plant.
Keywords: Collaborative design; multi-agent systems; knowledge ontology; web environment for collaborative working; multiple location collaborative design; industrial applications
A Two-Level Programming Method for Collaborative Scheduling in Construction Supply Chain Management BIBAKFull-Text 290-297
  Xiaolong Xue; Chengshuang Sun; Yaowu Wang; Qiping Shen
There are increasing requirements for collaborative scheduling (CS) in supply chain management (SCM). CS in construction supply chain (CSC), which involves multiple partners, such as general contractor, subcontractors, and material suppliers, can be seen as a multilevel decision-making system with hierarchical structure. Adopting the decomposition-coordination thought of large scale system theory and using the multilevel programming theory, a two-level programming model for CS decision making is established to find satisfactory solution for every partner in CSC. This model has the merit of paying attention to the maximization of profit or minimization of cost of all partners located at different decision-making level in CS process. The algorithm of this model is provided, which is combined with the first level programming adopting simulated annealing algorithm and second level programming using discrete search algorithm. Finally, an illustrative example of CS in a CSC is presented. The two-level programming method provides a new way to improve collaborative decision making in CSC. This research makes a contribution to the body of knowledge of scheduling.
Keywords: Collaborative scheduling; Two-level programming; Supply chain; Construction industry
A Particular Approach to the Analysis of Manufacturing Process Rhythmicity BIBAFull-Text 298-300
  Edmundas Kazimieras Zavadskas; Valentinas Podvezko; Algirdas Andruskevicius; Leonas Ustinovichius
Steady pace (rhythmicity) of work is a relevant parameter reflecting the performance of production systems. A coefficient (index) of the steady pace is used for quantitative evaluation of a production system's performance. Various rhythmicity indices often yield different and even conflicting results. The application of logically consistent axioms to a set of indices allows us to identify indices accurately describing a steady pace of production. A case study of rhythmicity of suspended aluminium ceilings' manufacture at one of the enterprises over the period of 5 years divided into quarters and months is provided.
A Study Upon the Architectures of Multi-Agent Systems for Petroleum Supply Chain BIBAKFull-Text 301-303
  Jiang Tian; Huaglory Tianfield; Juming Chen; Guoqiang He
In system development, the crucial step is the architecture design. This paper proposes a multi-agent based architecture for petroleum supply chain. The nested architecture can encapsulates the complex system, and number of supply chain partners can effectively interact through communications between agents.
Keywords: multi-agent system; architecture; petroleum supply chain
Multidisciplinary Knowledge Modeling and Cooperative Design for Automobile Development BIBAKFull-Text 304-306
  Jie Hu; Ying-hong Peng
The paper presents a cooperative design approach based on multi-disciplinary knowledge modeling for automobile development. The design knowledge from multidisciplinary domain is obtained to establish multidisciplinary knowledge model. Then multidisciplinary cooperative design method allows multidisciplinary designer to synthetically coordinate and design considering multidisciplinary knowledge. The method described in this paper was used to develop knowledge driven multidisciplinary cooperative design system, which is applied to automobile development processing.
Keywords: Cooperative design; multidisciplinary; knowledge modeling; automobile
Integrating Domain Dependent Tools in Artificial Bone Scaffolds Design BIBAKFull-Text 307-314
  Yan-En Wang; Sheng-Min Wei; Xiu-Tian Yan; Qingfeng Zeng
This paper proposes a systematic approach to integrate domain-dependent design tools in artificial bone scaffolds process. Integrated solution of CAD modelling and properly analysis of biomedicine knowledge are utilized to design complicated bone scaffolds. FEA and CFD are comprehensively analyzed for the mechanical and internal micro circulation properties. A case study of a successful artificial bone scaffolds model demonstrates that the cooperative design methodology can facilitate the design in the multi-physics domain substantially.
Keywords: Integration; domain dependent tools; artificial bone scaffolds
An Integrated Multiplatform Travel Service System BIBAKFull-Text 315-322
  Antoni Bibiloni; Yuhua Luo; Miquel Mascaró; Pere A. Palmer
Recently an integrated multiplatform system aiming at offering travel service over several communication channels is under development. A set of cooperating systems in completely different platforms will work together to provide integrated services to the clients anywhere and anytime. The structure, communication environment, some special issues and implementation of the system are discussed in the paper.
Keywords: cooperative applications; integrated services
Cooperative Mobile Healthcare Information Support System Using Web Services over Wireless and Wired Network BIBAKFull-Text 323-330
  Ho Hyun Kang; Sung Rim Kim; Kee-Deog Kim; Dong Keun Kim; Sun Kook Yoo
Mobile computing system using mobile Web Services now supports advanced methods for application integration through the Internet at distributed computing environments. Mobile Web Services on mobile networks is the foundation for ubiquitous healthcare that gives patients better medical services anytime and anywhere. However, available existing web contents are mainly used for desktops on wired networks, but are not yet compatible with mobile Web Services. In this paper, we suggested the cooperative mobile healthcare information support system. The designed system can achieve the advanced inquiring manner of medical information for collaborate diagnosis at both desktop and mobile machines, and also afford to support wider accessibility of users over wireless and wired network environments.
Keywords: Mobile Healthcare Information System; Mobile; Web Services; Cooperative design
Resource Sharing and Remote Utilization in Communication Servers BIBAKFull-Text 331-339
  Guofeng Qin; Qiyan Li; Xiuying Deng
The communication cluster servers require many key technologies in an information integration platform. In order to improve dependability, scalability, and other QoS features, we design a system structure to meet these requirements. The resource sharing and remote utilizing are applied to resolving the dynamical resource dispatch and the tasks distribution. The thread model and mechanism of the thread pool in the Non-blocking Input/Output (NIO) are created which include a case trigger mechanism. The system successfully resolves thousands of terminals connected to the information integrated platform. Messages, files, data, and other information can transport among the platform, the clients and the terminals.
Keywords: Cooperative server cluster; resource dispatch; concurrent processing; real time systems
A Proxy Based Information Integration System for Distributed Wireless Sensor Networks BIBAKFull-Text 340-342
  Li Li; Yuanan Liu; Bihua Tang
This paper proposes a novel information sharing system architecture to integrate the distributed and various WSNs together to make their resources more sharable, based on Peer to Peer (P2P) network and the technologies of web service and middleware.
Keywords: WSN; architecture; integration; distributed system; P2P
Using Ontological Slicing to Construct Semantic Context Facades for Mediating Collaboration BIBAKFull-Text 343-345
  Ruliang Xiao
Available ontologies of different information sources are often heterogeneous. It is critical to find an effective solution for many problems of collaborative environment. This paper presents a novel approach to completing heterogeneous collaboration environment that offers a means for developers to describe context essentials with intent-extent of context, to construct context facades using ontological slice, and to implement mediating collaboration based on the context facades.
Keywords: mediating collaboration; ontological slice; context intent-extent; context structure; shallow context façade
A Design of Personal Window Knowledge Capsule Based on Data Warehousing Concept BIBAFull-Text 346-348
  JeongYon Shim
Based on Data warehousing concept Personal Window Knowledge Capsule is Designed. This knowledge capsule has learning, perception Inference, knowledge structuring and Knowledge retrieval functions. Especially it provides multiple aspects of personal windows assembling the selected necessary functional module and personal viewpoint of Knowledge network flexibly. We applied this system to the virtual memory and test with sample data.
Dynamic Resource Dispatch Strategy for WebGIS Cluster Services BIBAKFull-Text 349-352
  Guofeng Qin; Qiyan Li
In order to meet the requirements of massive data processing and high quality of service, a WebGIS (Web Geographic Information System) cluster system has been developed which has the capability of balancing resources between servers. This cluster system includes three parts: a load balancer, a GIS server cluster, and a database of spatial and geographic information. The strategy of dynamic dispatch and the algorithm of adaptive load balancing service are presented in the paper.
Keywords: cooperative GIS; cluster services; load balancing strategy; concurrent processing
Leveraging Single-User Microsoft Visio for Multi-user Real-Time Collaboration BIBAKFull-Text 353-360
  Kai Lin; David Chen; Chengzheng Sun; R. Geoff Dromey
Microsoft Visio is one of the most prevalent commercial single-user graphic editing systems, which can be used to create a wide variety of business and technical drawings. It is desirable to leverage single-user Visio system for multi-user real-time collaboration. One feature that distinguishes Visio from other graphic editing systems is that formulas, a type of constraint, are defined in Visio to express the attributes of each graphic object, and the relationship between different Visio graphic objects. The ability to describe shapes with constraints opens many possibilities for making shapes behave in complex and sophisticated ways, but satisfying constraints in the presence of concurrency in collaborative systems is a challenge. In this article, we introduce a collaborative Visio system, called CoVisio, which enables a group of users to view and edit the same Visio documents at the same time from different collaborating sites. The methods applied to develop CoVisio are generic and can be adopted to leverage other single-user systems that support constraints, such as Microsoft Excel, for multi-user collaboration.
Keywords: Collaborative Visio; Consistency maintenance; Constraint satisfaction
Lattices and the Collaborative Design in Shipbuilding BIBAKFull-Text 361-368
  Maryna Z. Solesvik; Sylvia B. Encheva; Sharil Tumin
The paper is devoted to application of formal concept analysis and collaborative design in shipbuilding. Sourcing and shoring strategies of a Norwegian multinational design company is illustrated by a concept lattice.
Keywords: multiple location collaborative design applications; virtual organizations; shipbuilding
Web-Based Engineering Portal for Collaborative Product Development BIBAKFull-Text 369-376
  Shuangxi Huang; Yushun Fan
Nowadays, collaborative product development has become a strategic necessity to develop high quality products at low cost and with quick response time to market demand. Past decades have seen significant advances to collaborative product development. However, Enterprises are still confronted with some problems. Firstly, the research in strategic level of collaborative product development is lacking. There are no formal processes and models for collaborative product development. On the other hand, the full alignment between information system and collaborative business is still missing. The information system cannot adapt to the fast changed business. This paper aims to provide the strategy and reference business model for collaborative product development. And then, to support the implementation of strategy and model, a workflow and web service based engineering collaboration portal is developed. The workflow is used to model and execute the collaborative product development processes, and the web service is the implementing technology of the portal. The combination of workflow and web service can fit the gap between business and information system and achieve on-demand business.
Keywords: Web-based; portal; collaborative product development; web service
Application of Paraconsistent Logic in an Intelligent Tutoring System BIBAKFull-Text 377-384
  Sylvia B. Encheva; Sharil Tumin; Maryna Z. Solesvik
Experience shows that testing students' understanding of new concepts immediately after they have been introduced considerably improves the learning process. In this work understanding of a concept is assumed to take place if a student can provide reasonably correct answers to questions requiring application this concept. A possible solution to the problem of how to determine whether students actually understand a concept is to give them tests. Such tests, being a part of an intelligent system, provide inconsistent information to intelligent agents, facilitating the tests evaluation process. This happens because the degree of a student's understanding varies a lot depending on factors like time and the way questions are formulated. Since classical logic fails to draw conclusions in the presence of inconsistencies we propose application of paraconsistent logic.
Keywords: intelligent infrastructures and automated methods; logic
Novel Collaborative Automated Testing Framework Using DDF* BIBAFull-Text 385-395
  Songwen Pei; Baifeng Wu; Qiang Yu; Kun Zhu
Collaborative testing is an effective way of distributed interoperability in pursuit of automated testing. In this paper, a novel collaborative testing approach named Collaborative Automated Testing Framework (CATF) which meets the requirements of not only automated testing but also collaborative operation is proposed. Through the abstract analysis in terms of extended dynamic dataflow (DDF) model's viewpoint incorporating with UML2.0 profile of MDA, we design the framework with an automated engine working as a Finite State Machine (FSM). Particularly, as a approach to collaborative testing at a system level, CATF is implemented with component modules based on J2EE and verified to be of efficiency.
IT Services Design to Support Coordination Practices in the Luxembourguish AEC Sector BIBAKFull-Text 396-403
  Sylvain Kubicki; Annie Guerriero; Damien Hanser; Gilles Halin
In the Architecture Engineering and Construction sector (AEC) cooperation between actors is essential for project success. The configuration of actors' organization takes different forms like the associated coordination mechanisms. Our approach consists in analyzing these coordination mechanisms through the identification of the "base practices" realized by the actors of a construction project to cooperate. We also try with practitioners to highlight the "best practices" of cooperation. Then we suggest here two prototypes of IT services aiming to demonstrate the value added of IT to support cooperation. These prototype tools allow us to sensitize the actors through terrain experiments and then to bring inch by inch the Luxembourgish AEC sector towards electronic cooperation.
Keywords: AEC; Cooperation Process; Coordination practices; IT services
Expansion of Telecommunication Social Networks BIBAKFull-Text 404-412
  Przemyslaw Kazienko
A social network, in which nodes represent humans and weighted ties reflect relationships between them, can be formed in an automatic way based on the data about customers of a telecommunication company as well as their communication activities. The expansion of a telecommunication social network can be supported with one of three main approaches that have been considered in this paper: existing group conjunction, internal expansion of groups, and transfer of external relationships.
Keywords: social networks; integration of networks; network expansion
Knowledge-Based Cooperative Learning Platform for Three-Dimensional CAD System BIBAKFull-Text 413-419
  Jie Hu; Ying-hong Peng
Cooperative learning is a social interaction that involving a community of learners and teachers, where members acquire and share experience or knowledge. Recently, researchers have initiated studies that explore which factors are relevant to learner satisfaction or education effectiveness in a cooperative learning environment. However, little research effort for developing a cooperative learning platform for information system training, such as three-dimensional CAD system training. Thus, our study aims to narrow these gaps. We present the cooperative learning platform for 3D CAD system. This approach can be helpful for better establishing cooperative learning for information system training. We introduce a case involving three-dimensional CAD training with the web-based cooperative learning platform in China. This research is specifically related the context of a state-of-the-art cooperative learning platform that is based on network technology for real-time interaction amongst users, instructor, and the cooperative learning system itself.
Keywords: Cooperative learning; Three-dimensional CAD; Knowledge management
Modeling the Metropolitan Region Cooperative Development Based on Cooperative Game Theory BIBAKFull-Text 420-422
  Jianrong Hou; Fanghua Wang; Dan Huang
A collaborative development mechanism model of regional economic system in metropolitan region is presented in this paper. The factors of accomplishing collaboration balance and development in metropolitan regions economic system are discussed.
Keywords: metropolitan region; co-operative game; collaborative envelopment
Efficient Blind Signatures from Linear Feedback Shift Register BIBAKFull-Text 423-425
  Xiangxue Li; Dong Zheng; Kefei Chen
Linear feedback shift register (LFSR) sequences can be used to shorten the representation of the elements of a finite field. We employ n-stage LFSR sequence to construct an efficient blind signature scheme where main computation operations are performed in GF(q) and there do not need any exponentiation in its extension field GF(qn).
Keywords: Linear Feedback Shift Register; Blind Signature
A Relative Entropy Method for Improving Agent-Based Negotiation Efficiency of Collaborative Working in Construction Projects BIBAKFull-Text 426-428
  Xiaolong Xue; Jinfeng Lu; Yaowu Wang; Qiping Shen
This research presents a relative entropy method for improving agent-based multi-attribute negotiation efficiency (REAMNE) of collaborative working in construction projects (CWCP). This method aggregates preference information of negotiators of CWCP in two steps. Firstly, compromise group preference order is ascertained by using preference information, which is newly provided by negotiators, and compromise preference information, which is formed in previously agent-based automatically negotiation process and calculated by using a compromise preference model. Secondly, group preferences are aggregated by using a relative entropy model, which is established based on entropy theory meanwhile considering the multiple attributes in negotiation of CWCP. The method of REAMNE has the merit of fulfilling the necessary requirement of group decision making (GDM), i.e. maximizing preference consistency of GDM and keeping minimum gap of negotiators' utility and group preference.
Keywords: Collaborative working; Agent; Negotiation; Relative entropy