• Proceedings of the Korean Information Science Society Conference
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• 2012.06b
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• pp.399-401
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• 2012

최근의 게임들은 비용에 비해 완성도가 떨어지고 플레이 타임이 짧아졌다. 이러한 문제의 해결책 중에 하나로 게이머들은 Mod를 제작하여 그들의 욕구를 충족시켰고 이는 게임의 수명을 연장하는 길로 이어진다. 하지만 Mod의 제작은 전문 지식과 능력이 요구되기에 일부 유저만이 가능했고, 그것도 대부분이 게임의 수정에 관대한 게임들 뿐이어서 대부분의 유저들은 그저 다른 사람들이 만들어 놓은 Mod를 즐기는 단계있을 뿐이었다. 본 논문에서는 게임 Mod를 구성하는 많은 부분 중 게임의 오브젝트, 특히 배경건물에 집중하여 L-system을 이용해 building footprint를 성장시킨 뒤, 3차원 공간좌표로 변환하는 방법과 이렇게 나온 건물 오브젝트들을 Interactive Genetic Algorithm을 이용해 유저가 원하는 형태를 얻을 수 있도록 하였다. 또 이 모든 것을 웹상으로 구현하여 다른 사람들과 공유할 수 있는 것은 물론, 오픈 소스 레이싱 게임인 TORCS에 실제로 적용한 결과를 보여주어 비전문가들도 특별한 도구 없이 기본 웹브라우저만으로도 게임 오브젝트를 생성할 수 있는 기법에 대해 제안한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 1998.06b
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• pp.73-78
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• 1998

Our platform introduced in this paper is based on DAVIC specifications which define high quality multimedia services with some extensions to provide user friendly and uniform interface to its users. We designed and implemented an integrated service platform for high quality interactive multimedia services, swithed digital broadcasting, and Internet services. The integration in terms of a service provider system, a delivery system, and a service user system is taken into account. Our research results in the development of integrated high quality interactive and digital broadcasting multimedia services with web-based common user interface and its experience will be feedback to the field trial service which will be launched from next year.

• Journal of the Korea Society for Simulation
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• v.6 no.1
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• pp.15-24
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• 1997

VRML (Virtual Reality Modeling Language) is an Web-based standard for modeling 3D spaces and provides applications with 3D interactive interfaces. With its recent upgrade, it supports events, routes, scripts, and other behavior modeling constructs. This paper approaches VRML as a simulation modeling language. This approach promotes the sharing and distribution of simulation results and demonstration among distributed users as well as efficient modeling of systems through the direct mapping of 3D objects and behaviors. This paper analyzes the behavior modeling constructs of VRML, presents effective modeling alternatives through the modeling of a simple material processing system, and discusses the upgrade direction of VRML as a foundation for distributed interactive simulation system.

• Journal of Korea Multimedia Society
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• v.19 no.2
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• pp.520-529
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• 2016

Recent use of digital video contents increases visual fatigue of users. As a result, it has been difficult that the existing video methods make users focus on the content with interest and deliver stories intended by contents producers. Parallax scrolling is getting the spotlight as a new way which are keeping the fluent visual advantages of video and help users maintaining their attention with simple maneuver. In this study, based on a survey, it would compare the user experience in an existing video in Web contents and parallax scrolling Web contents. As a result, it showed that using the parallax scrolling Web sites improve user sensibilities such as aesthetic, novelty and pleasure of user experiences. A remarkable thing is that users replied parallax scrolling is not much comfortable to use. According to the result, researchers suggest that using parallax scrolling in Web site needs thoughtful decision in making and managing of Web contents.

• International Journal of Computer Science & Network Security
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• v.22 no.3
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• pp.189-200
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• 2022

In today's digital world, smartphones and web-based applications have gained remarkable importance throughout the globe. These smart applications are playing a very significant role in maintaining a powerful business. As well as, they are helping a lot to expand these businesses via social networks. Social media networks such as Instagram, Facebook, Twitter, and LinkedIn are playing a prominent role to promote the companies. In the hospitality sector, most of the companies are running their hotel booking systems by utilizing mobile applications and a web-based infrastructure, but usability issues still exist. This study has been conducted specifically to tackle the usability issues of hotel booking systems and the best utilization of social networks to promote the business. TripAdvisor was selected as an authentic source for selecting those systems and two international hotels are selected for this study. The first step is to identify different hotel booking systems. In the second step, the user's satisfaction level was measured for the selected systems by performing the System Usability Scale (SUS, Quick & Dirty) approach. Additionally, by which source (social media or personal relations) they found these hotels. It is found that the SUS rating for both systems is below the acceptable level of usability. The Mean SUS for hotel 1 is found at 55.25 and 51.2 for hotel 2. The third step was to identify the user interface (UI) issues, and heuristic evaluation is performed for this. The experts identified the UI issues on the basis of their experience. The major issues were related to the visibility of system status, error prevention, flexibility and efficiency of use. Depending upon the identified issues, an interactive UI (prototype) for the selected web-based applications was proposed. This prototype is mainly based on the user's perspective. This prototype can be used for improving the UI of the selected systems which is based on the user's perspective. During the process of verifying the satisfaction level, it is revealed that the targeted audience is not able to use these systems efficiently and effectively. The reason behind this is the negligence of usability guidelines throughout the process of design and development of these hotel booking systems. Therefore, it is highly recommended that the usability of these systems should be evaluated and redesigned, based on expert opinions. It has also been observed that the reviews/ feedback of customers has spread a negative impact through social networks.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.6 no.4
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• pp.632-638
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• 2002

Extensible 3D(X3D) is a software standard for defining interactive web and broadcast-based 3D content integrated with multimedia. The data size of Web3D representation based on polygon meshes is so large that transferring practical data fast is a hard problem. This paper proposes 3D object structure, a new framework for compact 3D representation with high quality surface shape. By utilizing a free form surface technique, qualified surface are transferred with limited amount of data size and rendered. 3D graphic structure can be regarded ad both polygon meshes and free form surfaces. Therefore, it can be easily integrated to existing Web3D data formats, for example VRML ＆ XML. 3D object structure also enables modeling free form surface shapes intuitively with polygon modeling like operations.

• Proceedings of the IEEK Conference
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• 2002.07a
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• pp.250-253
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• 2002

We have implemented an interactive multimedia education system for C programming. The system consists of two pars. One is multimedia contents to help students better understand C language syntax, programming style, and program logic and the other is a web-based compilation support system that compiles C programs at the server side which are submitted trough Web by students and returns their execution results to the students' PC. Although there are currently some restrictions that students should replace the inputs functions such as scanf(), getc() and getch() with assignment statements or fscanf(fp, , ), since the system has been implemented using general web technologies and shareware C compiler, the education system could be one solution that education institutions seek to reduce annual immense expenditure of money on C complier.

• Journal of computational fluids engineering
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• v.15 no.1
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• pp.88-94
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• 2010

In general, flow analysis programs have been built in not JAVA language but such as Fortran, C or C++ because of a merit in performance of computation. However, most developer of those languages are not free for use. User should purchase the development tools of programs, and install it on their own computer. Fortunately, JAVA is a free software, and can be used to develop WEB-based programs. It is well known that the JAVA language is time consuming for calculating. However, the performance of computer power has been increased continuously, so it is sure that the former states can be overcome. In the present study, a flow analysis program, which is interactive with Graphics, using the Web-based programing language, JAVA, has been developed for solving the two-dimensional flow motion.

• Journal of information and communication convergence engineering
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• v.3 no.3
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• pp.152-156
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• 2005

Korea-China with the fastest speed Internet Broad Band, has achieved many progresses on Internet shopping. Especially, Korea has made a great effort on comparison website construction. A research prototype design and exploratory analysis are presented to assess success factors and impacts of Korea and China price comparison websites. For different user groups, the relationships between the characteristics of technology and tasks, usage, and organizational impacts were analysed. It shows us how to improve the applicability of fit-viability of the price comparison web sites in China after analysis. These results indicate a need for simple but highly functional price comparison applications. And we designed a sample model to include an interactive web service system for price comparison sites that complement existing information systems. This paper provides a basis for further research aiming to improve the design and management of business applications based on emerging technologies of web service and browser for information management.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.05a
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• pp.494-501
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• 2003

Web casting has become an important opportunity to apply the user-centered concept to broadcasting because it provides real-time interactive service through time and space. It is also necessary to have a new understanding about user who is not a passive viewer any more but an active user. The amount and quality of contents are also important, but usability is a competitive factor as well as the fundamental customer services that have user best experience at the site. Nevertheless most of web casting sites show the low level of usability. In this study we had a comparative evaluation among these sites, MBC, KBS and SBS, which are the representative broadcasting systems. The tests were carried out as heuristic evaluation and usability testing. We analyzed causes and problems of web usability for customer satisfaction and reliability exaltation, and expected the basic knowledge of developing and improving sites.