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2004 International Conference on Cyberworlds

18-20 Nov. 2004

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Displaying Results 1 - 25 of 70
  • [Cover page]

    Publication Year: 2004, Page(s): c1
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  • [Title page]

    Publication Year: 2004, Page(s):i - iv
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  • Table of contents

    Publication Year: 2004, Page(s):v - x
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  • Message from the General Chair

    Publication Year: 2004, Page(s): xi
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  • Conference organization

    Publication Year: 2004, Page(s):xii - xiii
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  • list-reviewer

    Publication Year: 2004, Page(s): xiv
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  • The potentials of cyberworlds - an axiomatic approach

    Publication Year: 2004, Page(s):2 - 7
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    Considering the increasingly large impacts and potentials of cyberworlds as seen in e-financing that trades GDP equivalent in a day, we human beings living in the real world are at the stage of needing to firmly identify the nature of cyberworlds. It is clear that if we continue to deal with cyberworlds as we have been, they grow chaotic beyond human understanding and control, endangering the real... View full abstract»

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  • Paradigm of information security as interdisciplinary comprehensive science

    Publication Year: 2004, Page(s):9 - 21
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    The concept of information security is "the dynamic process for establishing an integrated and complete system designed to form, without infringing freedom broadened by IT (information technology), and with closer coordination among technologies, administration and management techniques, legal and social systems and information morals in order to make compatible improved usability and efficiency a... View full abstract»

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  • Transforming heterogeneous product concepts through mapping structures

    Publication Year: 2004, Page(s):22 - 29
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB) | HTML iconHTML

    An unfavorable phenomenon is observed: current electronic markets are fragmented and have formed a set of autonomously distributed product information islands. This leads to heterogeneity of product information between separated sources and makes difficult on product document interoperation. To resolve the issue and facilitate business document interoperation, this paper proposes a heterogeneous c... View full abstract»

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  • Seamless visual guidance of virtual and real trips

    Publication Year: 2004, Page(s):30 - 37
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6968 KB) | HTML iconHTML

    This work creates a complete view index of an area for seamless visual guidance in the cyber world. The goal is to generate continuous route views that direct people to their destination. In addition to a route map, continuous scenes will be displayed to effectively guide virtual and real trips. We employ compact and seamless image media such as route panoramas and panoramic views in the scene reg... View full abstract»

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  • A rapid rendering method for caustics arising from refraction by transparent objects

    Publication Year: 2004, Page(s):39 - 44
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB) | HTML iconHTML

    Caustics are patterns of light formed by reflection or refraction of light from objects, and several methods have been developed to render caustics because of their visually beautiful patterns. This paper proposes a method for the rapid rendering of caustics formed by refracted light through transparent objects. First, a preprocess is used to generate sampling rays incident on each vertex of the o... View full abstract»

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  • Generating autonomous time-varying virtual cities

    Publication Year: 2004, Page(s):45 - 52
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB) | HTML iconHTML

    We propose an approach to generating virtual cities that vary dynamically over time, focusing on the layout of artificial elements such as building, roads, and traffic lights. We first define an environment vector as the amount of features reflecting economic and functional activities of city's residents in each block surrounded by roads. Our method generates virtual cities by deleting and locatin... View full abstract»

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  • Interactive function-based shape modeling for cyberworlds

    Publication Year: 2004, Page(s):54 - 61
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (960 KB) | HTML iconHTML

    Shared virtual worlds require exchanging shape models over the Internet. Since complex shapes such as VRML objects are often defined with polygonal meshes, the size of models may become very large. It slows down their visualization and limits the model's precision. Using function-based models incorporated into VRML or other visualization frameworks allows for reducing the overall size of models as... View full abstract»

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  • Intelligent agents in virtual worlds

    Publication Year: 2004, Page(s):62 - 69
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB) | HTML iconHTML

    The realistic animation of the behavior of virtual agents emulating human beings and evolving within virtual 3D worlds (a field also known as artificial life) has received great attention during the last few years. The current challenge is to create a behavioral system for the virtual agents so that they behave as realistic as possible. Such a system should provide the agents with the most typical... View full abstract»

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  • Analytically-defined collaborative shape modeling in VRML

    Publication Year: 2004, Page(s):70 - 77
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB) | HTML iconHTML

    In this paper we introduce a function-defined extension of Virtual Reality Modeling Language where analytical formulas are used for defining geometry and appearance of 3D shapes. By "functions" we understand analytical definitions with parametric, implicit and FRep formulas. In our model, different analytical representations can be used concurrently for defining geometry and appearance of the shap... View full abstract»

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  • A platform to design and run dynamic virtual environments

    Publication Year: 2004, Page(s):78 - 85
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB) | HTML iconHTML

    This paper is devoted to introducing, in a general fashion, a platform that allows users to generate virtual scenes. Such generation involves two phases: 1) description of the attributes, arrangement and intentions of the virtual characters participants throughout a natural language, and 2) a virtual representation of a dynamic scene during which the characters interact with each other in order to... View full abstract»

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  • A protocol for remote musical session with fluctuated tempo

    Publication Year: 2004, Page(s):87 - 93
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB) | HTML iconHTML

    When a musical session is performed via networks, it is necessary to interact in real-time. There exists, however, the problem of delay between the nodes, which causes musical notes become an impediment. To overcome this problem, we had proposed a new protocol for musical session called mutual anticipated session (M.A.S.), which is a type of ensemble that controls the appropriate timing of the sou... View full abstract»

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  • A deformable fast computation elastic model based on element reduction and reconstruction

    Publication Year: 2004, Page(s):94 - 99
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB) | HTML iconHTML

    This paper presents a deformable fast computation elastic model for real-time processing applications. 'Gradational element resolution model' is introduced with fewer elements for fast computation, in which small elements are laid around the object surface and large elements are laid in the center of the object. Elastic element layout is changed dynamically according to the deformation of cutting ... View full abstract»

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  • Speculative planning with delegation

    Publication Year: 2004, Page(s):100 - 106
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    This paper presents a novel method of collaborative problem solving for intelligent agents in virtual environments. We describe a planner for STRIPS-like domains enhanced by techniques of "delegated computing". Instead of having one central planner with complete information about the world, the concept of delegation is used. In this way, we achieve agent collaboration in a dynamic system, where ea... View full abstract»

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  • 3D retrieval system based on cognitive level: human interface for 3D building database

    Publication Year: 2004, Page(s):107 - 112
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB) | HTML iconHTML

    This paper shows a media-linkage method on cognitive level based on adjective annotation method. The method consists of mapping from still-images and 3D models to adjective texts because adjective texts as a cognitive level can be used for different multimedia data to link texts, images, 3D object models, etc. The method automatically obtains adjective scores and labels adjective texts for all the... View full abstract»

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  • Generic classifiers systems and learning behaviours in virtual worlds

    Publication Year: 2004, Page(s):113 - 120
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4560 KB) | HTML iconHTML

    Animating entities in a virtual world is a complex problem. Many are solved using some scripting engines but programmers must spend a lot of time designing and implementing them. The use of learning engines tends to ease the work of the programmer. Learning classifiers systems (LCS) mix learning and evolution to generate adaptive behaviours. The extension of LCS to a polymorphic structure simplifi... View full abstract»

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  • Culture cross road: a virtual town built from distributed route panoramas

    Publication Year: 2004, Page(s):121 - 126
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4800 KB) | HTML iconHTML

    This paper introduces an effort to build a cyber town from geographically separated routes. It brings streets distributed in different cities and countries together for people to traverse the space, learn history, understand living style, etc. The town is constructed by using our developed technology - route panorama and data acquired at several places. We design a flexible and comprehensive index... View full abstract»

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  • Supporting social awareness among university students in 3D CVEs: benefits and limitations

    Publication Year: 2004, Page(s):127 - 134
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    For effective cooperation, sharing of resources, a good social climate and therefore better learning, students need to maintain awareness of the social situation in a group or a community, or social awareness (SA). This paper proposes using 3D Collaborative Virtual Environments for social awareness support among university students and presents requirements for a CVE providing such support. A virt... View full abstract»

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  • An improvement for accessing patterns through clustering in interactive VRML environments

    Publication Year: 2004, Page(s):135 - 140
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB) | HTML iconHTML

    Since the walkthrough system may contain large-scale VRML models, the massive objects are always stored and scattered in the storage units of the walkthrough system. But this situation will increase the search time and reduce the system performance. However, this problem is never considered in the traditional walkthrough system. In this paper, we present an efficient clustering method to improve t... View full abstract»

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  • A fair dynamical game over networks

    Publication Year: 2004, Page(s):141 - 146
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB) | HTML iconHTML

    A model of dynamical network game is presented that provides a fair environment for the participants without assuming any trusted parties. A game is regarded as identical discrete-time dynamical systems running individually on each participant's computer. They are driven by the identical input at each discrete-time clock tick. The participants in the equal condition decide the input at the same ti... View full abstract»

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